JP3390629B2 - Survey method of propulsion method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
Use a total station that integrates
Surveying method to measure the position of the excavator at the tip of the propulsion method
About. [0002] 2. Description of the Related Art There are two so-called total stations.
Lightwave measurement to determine the distance by measuring the time that lightwaves travel back and forth between
The rangefinder and the electronically controlled transit are integrated,
A reflection plate that is placed at the target position and reflects incident light in the incident direction
Collimate the rhythm (corner cube) and press the measurement key
When measuring and displaying the horizontal angle, vertical angle, and distance to the target,
In both cases, measurement data is calculated and processed by computer
Is obtained. Conventionally, such a total
As a surveying method of the propulsion method using a station,
For example, a technique as shown in FIG. 7 is known. This propulsion method
Excavates the starting shaft 31 vertically on the ground,
Excavating the horizontal shaft 32 with the shield machine 33 carried into a
The propulsion jack 35 at the shaft bottom 31a allows the
Tube 34 according to the excavation speed of the shield machine 33
The fume tube 34 at the tip
A jack for controlling the direction of excavation is provided between the
36 are equipped. For convenience of explanation, the horizontal shaft 3
2 shall be excavated in the horizontal plane. [0003] Surveying in the above-mentioned propulsion method first involves
As shown in (A), the coordinates of the starting shaft 31 are known reference points.
P₁A total station is set up in
Direction, the coordinates in the starting shaft 31 are known.
Reference point P₀And target P provided on shield machine 33_m
Reflections placed toward the total station above
Collimating the prism, the azimuth reference point P₀, Target P_mWhat
Distance l₀, l₁And the horizontal included angle θ₁And target P_m
Is calculated. Next, as shown in FIG.
The excavation of the field machine 33 progressed, and four fumes
When the pipe 34 is added in a curved shape, the reference point P₁From tar
Get P_mCan not be collimated, so a suitable intermediate point
P_TwoA new reflecting prism to the reference point P₁To the base
Reference point P₁At the total station in
Distance l₁'And a new horizontal included angle θ₁'After measuring point P
_TwoThe total station has been relocated to₁Measured
Point P_TwoNew reflective prism was installed and relocated to
Target by the total station as well
P_mDistance to l_TwoAnd the horizontal included angle θ_TwoAnd target P_m
Is calculated. [0004] Further, as shown in FIG.
And the measuring point P on the fume tube 34_TwoFrom the reference point P₁Is collimated
When the reference point P₁And station P_TwoNew measurement point P
_ThreeAnd first, this measurement point P_ThreeA total station
Relocated to the reference point P₁And station P_TwoMeasuring point P_ThreeHusband towards
Reflection prism installed at the above total station
Collimate and distance l₁", l_Two'And the horizontal included angle θ_Two'Measure the following
Come ahead, measuring point P_TwoRelocated total station
And measuring point P_ThreeMeasuring point P_TwoWith a reflective prism installed towards
Target P of shield machine 33_mThe above total stay
Collimate at the target P_mDistance to l_ThreeAnd horizontal contamination
Angle θ_ThreeIs measured, and the target P is calculated from these measurement data._m
Is calculated. [0005] The above conventional surveying method
However, frequent relocation of such total stations (
Frequent relocation and direction adjustment of reflective prisms
All that is needed is a series of human
Since the entire tube 34 always moves, the inside of the fume tube 34
The uniqueness of the propulsion method that a reference point for surveying cannot be set up
caused by. Therefore, when the radius of curvature of the shaft 32 is small,
In case of joining, add a fume tube 34 of about 2.5m in length.
Each time, the total station and the reflection prism
While changing the direction of the reflection prism and the starting shaft,
31 reference points P₁From the top to the shield machine 33 at the tip
Is not performed sequentially, the current position of the shield machine 33 is obtained.
2 to 3 people for complicated work in narrow fume tube
It takes a lot of manpower and a long time, and adversely affects the construction cycle.
Problem. Also, the curved fume tube
That the horizontal angle cannot be taken deep enough
Repeated surveying over the entire length increases measurement accuracy
And the accuracy of surveying is poor due to accumulated errors.
is there. Here, it is necessary to avoid complicated re-arrangement work.
The fume tube 34 added at the starting shaft 31
Within, collimation takes into account the radius of curvature and cross-sectional diameter of the shaft 32
Total stations are installed sequentially at a predetermined distance from each other
There is a way to do it. But the added Hume tube
The total station installed in
Is a post-sighting point for the
Instrument point for the total station before and after
Because it changes to the pre-collimation point for the total station,
In line with this, the total station
Install a reflective prism at the position and change and adjust its direction.
If this work also takes time and effort,
There is a problem. Also, a total station to collimate
Multiple scanning prisms and other total
Lens or helmet, reflective tape,
If there is a reflector such as a pump, the laser beam
Mis-collimation and erroneous measurement in response to different reflectors
There is a problem. Therefore, an object of the present invention is to
Counter to the total station in the pipe being buried and buried.
Multiple new surveying instruments with integrated projection prism
Eliminates the need to replace reflective prisms and automatically adjusts direction.
Other than the reflection prism at the front and rear collimation points
Erroneous collimation and erroneous measurement due to reflected light
The position of the excavator can be measured with high accuracy,
Proposal of a survey method for the propulsion method that can increase the efficiency of the law.
To provide. [0008] Means for Solving the Problems To achieve the above object,
Therefore, the invention of claim 1 follows the excavator for excavating the ground.
Then, pipes of a predetermined length are sequentially inserted from the starting shaft,
The pipe is excavated by the propulsion device in the starting shaft.
The propulsion method of burying by pushing and propelling forward in accordance with the progress
In the surveying method, electronic transit and lightwave rangefinder
The incident light is directed to the top of the integrated total station.
Surveying with a fixed reflecting prism that reflects in the direction of incidence
Move the instrument to the reference point in the starting shaft and the
Multiple units are fixedly installed in the pipe according to the propulsion length.
In addition, the intermediate surveying instrument, next to this intermediate surveying instrument
Collimate the reflective prisms of the front and rear surveying instruments
And the horizontal included angle of the front, middle and rear survey instruments
From the middle surveying instrument to the front and rear surveying instruments.
Measure the forward and backward distances at
By the weighing instrument, before and after the surveying instrument adjacent to this front,
Collimating each reflection prism of the above-mentioned intermediate surveying instrument,
The horizontal included angle of the surveying instruments before, before, and between
From the front surveying instrument to the preceding and intermediate surveying instruments
Measure the next forward distance and the next rear distance at
When the separation and the following rear distance match within a predetermined error,
Collimation with the intermediate surveying instrument and the frontal surveying instrument
The collimation by the instrument corrects the predetermined adjacent reflecting prisms respectively.
Judge that you are aiming properly,Surveying instruments before
Similar collimation and measurement by the starting shaft from the excavator
To find the position of the excavator
You. The above total station and the reflecting prism
Surveying instrument consisting of a range of horizontal and vertical angles
While scanning, the laser beam is emitted from the telescope and
Horizontal and vertical angles when parallel reflected light is received
It is an automatic tracking type that measures angles. Therefore, start
Before and after adjacent with an intermediate surveying instrument closest to the reference point in the mine
When collimating the reflective prism of a surveying instrument,
Instrument telescope generally faces telescope of intermediate surveying instrument
Reflection prism of the surveying instrument before and after
Instrument that captures reflected light from the
The horizontal included angle, vertical included angle, forward distance, and backward distance
It can be measured dynamically, and the coordinates of the rear and middle surveying instruments are known.
Therefore, the coordinates of the surveying instrument ahead can be calculated. Then, above
Intermediate survey instrument above and adjacent to the previous survey instrument
When collimating the reflective prism, the surveying instrument
Telescope is almost opposite the telescope of the surveying instrument ahead
If it is installed in the same way, it is also the same
Horizontal angle, vertical angle, next forward distance, next backward
The distance can be measured automatically and the coordinates of the surveying instrument before and after are calculated.
I can get out. The forward distance and the next rear distance
If the values match within a predetermined error (for example, 6 mm),
The surveying instrument at the front is the surveying instrument at the front, while the instrument at the front is
Misalignment of intermediate surveying instruments with light reflected from other reflectors
Calculated as above,
The coordinates of the surveying instrument in front are stored, and the
By repeating the same collimation and measurement by the instrument,
Of the tip machine based on the coordinates of the measuring machine
I do. The front distance and the next rear distance are outside a predetermined error.
If there is, please check if the installation of the surveying instrument is correct,
There is no object that reflects light outside the reflecting prism on the surveying instrument
And re-measurement, the forward distance and the next backward distance
Is repeated until the difference between. Thus, anti
Automatic adjustment of the direction of the projection prism and collimation by surveying instruments
Other than the reflection prism at the front and rear collimation points
Erroneous collimation and erroneous measurement due to reflected light
The position of the excavator can be measured with high accuracy,
The efficiency of the method can be improved. [0011] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described in more detail. Fig. 1 shows the measurement of the propulsion method of the present invention.
FIG. 2 is a perspective view of a surveying instrument used for the surveying method,
Instrument 1 integrates an electronic transit and a lightwave rangefinder.
Incident light on the top of the total station 2
A reflecting prism (corner cube) 3 that reflects
The optical axis of the reflecting prism 3 is
90 ° intersects with the optical axis of the telescope 4 and the reflecting prism 3
The reflection center point (equivalent to the apex of the triangular pyramid)
It is configured to be fixed to coincide with the pivot axis of the sit. the above
The total station 2 has a predetermined horizontal angle and vertical angle range.
While turning the telescope 4 around the
Eject, scan and use a reflective prism on top of other surveying instruments
When the reflected laser light is received, its horizontal angle, vertical angle,
Automatic tracking type that automatically measures distance and distance.
Measure and display horizontal angle, vertical angle, and distance to other surveying instruments
In addition, the measurement data is calculated by the built-in computer
Thus, various survey values can be obtained. The total station 2 has a horizontal
Adjust and maintain the state within the correction range of ± 5 ° (resolution 8 seconds)
Tripod 6 or hanging bracket via the automatic leveling device 5
Attached to the tripod 6 (not shown).
Hume tube 3 following shield machine 33 by racket
4 (see FIG. 2), and
Control of the quasi-device 5 and a personal computer in the excavation control room described later
(Personal computer)
Power cable 8, interface cable 9,
The automatic leveling device is connected via the communication control cable 10.
You. In addition, 11 is the same as above when adding a fume pipe.
A backup power supply for securing the power supply of the communication control device 7;
Is a power line of AC 100V, and 13 is connected to the personal computer.
Communication cable, 14 is the communication control device of the surveying instrument in front
7 is a communication cable connected to 7. FIGS. 2 and 3 show a tune using the surveying instrument 1.
An outline of the construction example of the wire propulsion method and the survey method of the present invention is shown.
FIG. 3 is a vertical sectional view and a horizontal sectional view along a propulsion direction. same
In the figure, 31 is a starting shaft excavated vertically in the ground,
Reference numeral 32 denotes a shield machine 33 carried into the shaft bottom 31a.
Horizontal shaft, 34, 34 ... curved in the horizontal plane excavated
Are sequentially inserted into the shaft bottom 31a and
In the shaft 32 according to the excavation speed of the shield machine 33
The fume tube, which is propelled forward,
Excavation direction control installed between the tube and shield machine 33
It is your favorite jack. The coordinates in the shaft 31 are known.
Azimuth reference point P₀A reflecting prism 3 to a base whose coordinates are known.
Reference point P₁The surveying instruments 1 are installed in the fume tube 34 respectively.
Predetermined measuring point P_Two, P_ThreeFirst, install the same surveying instrument 1,
A target P consisting of a reflecting prism 3 on the end shield machine
_mIs installed to form an open traverse. The above
Direction reference point P₀The reflecting prism 3 of the reference point P₁To
Target P of the field machine 33_mIs the subsequent fume tube 34
Each is directed to. Then, each of the surveying instruments 1 is connected to the cable
Communication control devices 7 connected by
Connected to each other via power line 12 and communication cable 14
With the communication shaft 13 in the starting shaft 31
Connected to the personal computer 16 in the excavation control room 15
The printer 16 in the office 17 on the ground has a printer 19.
It is connected to the computer 18 via a communication line (not shown). Also,
The shield machine 33 is used to indicate a reference direction for excavation.
A gyro compass 20 (see FIG. 2) and a jaw for controlling the propulsion direction
It has a jack 36. Intermediate measuring point P_Two, P_ThreeSurveying instruments
1 is the collimation taking into account the radius of curvature and cross-sectional diameter of the shaft 32
A predetermined distance between the starting shaft 31
Via a suspension bracket (not shown) in the fume tube 34
The reflecting prism 3 is set at the reference point P₁Installed sequentially toward
Is done. The intermediate surveying instrument 1 is a prism
Since a constant (for example, 15 mm) is set,
Even if the direction is adjusted in this manner, for example, FIG.
Measurement point P of (B)_TwoWhen it comes to
As described above, the rear reference point P which is of the automatic tracking type as described above.₁
Of the surveying instrument 1 of FIG._TwoTo
When it comes, the reflected light from the reflecting prism 3 is automatically tracked.
A certain measuring point P behind_ThreeSurveying instrument 1 can be captured. In addition,
The horizontal included angle θ in FIG.₁, θ_Two, θ_ThreeAnd distance l₀, l₁, l_Two, l_Threeof
The display is different from the display in FIG.
Represents the measured value at the time of proceeding with. In the horizontal shaft 32 excavated to the state shown in FIG.
FIG. 4 is a flowchart illustrating the surveying method according to the present invention.
The following is described with reference to FIG. Note that the surveying instrument 1 is
3 intersects its optical axis with the optical axis of telescope 4 at 90 °
Fixed and can be turned electronically around vertical and horizontal axes
Therefore, the following operation is performed in the excavation control room 15 (see FIG.
2) automatically performed by the personal computer 16
You. Further, n in the flowchart of FIG.
3. First, in step S1, various settings are made.
In step S2, the reference point P₁And station P_Two, P_ThreeSet in
After performing the initial setting of each surveying instrument 1 placed,
In S3, the measuring points that may go wrong with the promotion of the fume tube 34
P_Two, P_ThreeOf the surveying instrument 1 in the horizontal direction, that is, the lead of the machine vertical axis
The inclination with respect to the straight line is checked, and in step S4, the inclination is determined.
Judge whether it is within 3 minutes, and if yes, the automatic leveling device 5
(See Fig. 2)
If not, the process proceeds to step S6, and if not, the process proceeds to step S6.
Leveling was performed based on the value obtained by an inclinometer (not shown).
It can be performed automatically according to the instruction from
After adjusting the inclination within 30 seconds,
Proceed to step S5. Next, at step S5, the measuring point P_Two, P_ThreeMeasurement
When the reflecting prism 3 of the measuring instrument 1 is installed on the fume tube,
Reference point P₁To the end of the pipe, that is, the face
Do not reflect the laser light emitted from the instrument point
In step S7, the reference point P₁of
The surveying is started from the surveying instrument 1. That is, the measuring point P_TwoSurveying
The reflection prism 3 of the instrument 1 is set at the reference point P.₁Surveying instrument 1
After setting, the reference point P₁Azimuth reference point P with surveying instrument 1₀and
Measurement point P_TwoCollimating the reflecting prism 3 of the horizontal angle θ₁, Vertical
The corner (0 in this example since the shaft 32 is in the horizontal plane) and both
Distance l to point₀, l₁Is measured, and the first time in step S8
Judgment is made only as to whether the difference between the included angles is within the allowable value as follows
I do. That is, the horizontal included angle θ measured at the normal position₁To
In step S7, the telescope 4 is turned 180 ° around its horizontal axis.
Rotate ∠P₀P₁P_TwoIs the horizontal included angle θ₁'When
Compare and if the difference is within the allowable range, the measurement is correct
As (θ₁+ Θ₁') / 2 as measured value, exceeding allowable range
Range that does not significantly affect coordinate calculation (warning range)
Then, similarly, (θ₁+ Θ₁') / 2 is measured, but Pasoko
Warning is displayed in yellow on the screen of
If it does, assume that the permissible value has been exceeded and use the above measured value.
Instead, a warning is displayed in red on the screen of the personal computer 16.
In this case, the worker who saw the red warning display
Inspection to eliminate the cause of the misalignment, and then proceed
Return to step 3. If a positive determination is made in step S8, the process proceeds to step S8.
Proceeding to step S9, using the personal computer 16 in the excavation control room 15,
The measured horizontal included angle θ₁, Vertical angle, distance l₀, l₁and
Direction reference point P₀And reference point P₁From the known coordinates of_TwoSeat
Calculate the target and temporarily store the measured values and the calculated coordinate values
I do. Next, in step S10, the total number of surveys is n
(= 3) is determined, and in this case, n = 1.
Therefore, increment n to 2 and return to step S7
Measurement point P_TwoMove to surveying by the surveying instrument 1. That is,
At step S7, the reference point P₁And station P_ThreeSurveying instrument 1
Survey prism P_TwoAfter turning to surveying instrument 1 of
Point P_TwoSurveying instrument 1 with reference point P₁And station P_ThreeThe reflection
Rhythm 3 is collimated and the horizontal included angle θ_Two, Vertical angle and both points
Distance l₁', l_TwoIs measured, and the same as above is performed in step S8.
In addition to the difference between the horizontal included angles, the distance l₁'(P
_Two→ P₁) And the previously measured distance l₁(P₁→ P_Two) Is acceptable
It is determined as follows whether or not it is within. That is, the measured distance
Separation difference (l₁−l₁') Is within the allowable range, the measurement distance l₁
Is correct, and if it is within the warning range, the measurement₁Is correct
However, a warning is displayed in yellow on the screen of the personal computer 16.
In any case, the measured distance l₁You
And P_TwoIs determined as a formal measurement. one
The distance difference (l₁−l₁') Exceeds the warning range.
If the measured distance exceeds the allowable value,
A warning is displayed in red on the screen of the personal computer 16. this
If the worker sees the red warning,
P around₁, P_TwoOther than reflective dots,
Inspect for reflectors to eliminate the cause of misalignment and
After that, the process returns to step 3 described above. If a positive determination is made in step S8, the process proceeds to step S8.
Proceeding to step S9, using the personal computer 16 in the excavation control room 15,
The measured horizontal included angle θ_Two, Vertical angle, distance l₁, l_Twoand
Reference point P₁And station P_TwoFrom the known coordinates of_ThreeCalculate the coordinates of
And temporarily stores the measured values and the calculated coordinate values.
Next, in step S10, the total number of surveys n (= 3) is determined.
Since n = 2, n is incremented to 3 and step
Returning to step S7, the measurement point P_ThreeMove to surveying with surveying instrument 1
You. Measurement point P_ThreeThe surveying with the surveying instrument 1 at_TwoReflection
Measure prism 3 to P_ThreeTowards point P_ThreeFrom measurement point P_TwoAnd shi
Target P of the field machine 33_mExcept for collimating
The same operation is performed as described above, and the horizontal included angle θ_Three, Vertical angle and both points
Distance l_Two'(P_Three→ P_Two), l_ThreeIs measured, and in step S8,
As described above, the horizontal included angle range and the measured distance range (l_Two
−l_Two') Is within the allowable value.
Warning, a red warning is displayed and the
After removing the cause, return to step S3, but within the allowable value
In the case of, the previously measured distance l_TwoAnd P_ThreeSeat
The standard value is determined as the official measurement value and the seal
Target P_mAre calculated. next,
In step S10, the total number n of surveys has reached three.
Then, the process proceeds to step S11, and the communication cable 13 (see FIG. 2)
Based on the previously determined measurements sent via
Have a shield surveying program in the excavation control room 15
Shield machine for design planning line by personal computer 16
The meandering amount (deviation) of 33 is calculated as described below,
finish. In the above embodiment, P₁, P_Two, P_Three,…
P_nSurvey was performed in the order of_n…, P_Three, P_Two, P₁Order
It may be surveyed in the beginning, and P₁~ P_nSurvey towards
And P_n~ P₁Surveying towards
May be performed. As described above, the surveying instrument 1 is an electronic type.
Automatic tracking toe with integrated Rangsit and lightwave rangefinder
The optical axis of the telescope 4 and the 90 ° light
With the reflection prism 3 fixed by crossing the axes
And the total point of the reflection center point of the reflection prism
Aligned with the turning axis of
The pipe 34 which is made and is added by the starting shaft 31 with the excavation
If it is installed at a predetermined interval in the direction of the pipe axis,
6 to rotate freely, the telescope of the front and rear surveying instruments
Intermediate only reflected light from reflective prism while avoiding reflection
Of the front, middle, and rear survey instruments.
Automatically includes horizontal included angle, vertical angle, forward distance, and backward distance.
It can measure, calculate the coordinates of the surveying instrument ahead, and
In the same way, the horizontal instruments formed by the surveying instruments
Angle, vertical angle and next forward distance, next backward distance automatically
Measure and make sure that the above forward distance and the next backward distance are within a predetermined error.
When matched, a similar collimation by the surveying instrument further ahead
Measurement is repeated, so that
Quick and automatic determination of the coordinates of a simple shield machine 33
Significantly improve the efficiency of surveying and, consequently, the propulsion method.
Can be As described above, the distance between the front and rear
To compare whether the difference is within the acceptable range
The laser beam irradiated by the
Reflected, rangefinder measures distance based on the reflected light
And transit measures horizontal included angle and vertical angle
This is to avoid Further, in the above embodiment, the surveying instrument 1
Automatic leveling device 5 that automatically maintains the horizontal state of
Therefore, when the shaft 32 is curved in the vertical direction,
Speed up surveying without having to manually adjust conditions
Can be. In addition, the horizontal included angle is collimated and the measured values are
Only when the error is within the fixed error, the horizontal included angle is regarded as a correct measurement value.
To measure the horizontal included angle more accurately.
it can. In addition, the measured distances in front and behind exceed a predetermined error.
Alerts the computer 16 when the
Prompts inspections to prevent mis-collimation,
The rate can be further improved. FIG. 5 shows the measured horizontal included angle θ.₁, θ_Two,
θ_ThreeAnd distance l₁, l_Two, l_ThreeFrom above shield surveying program
The target P of the shield machine 33 by the ram_mCoordinates (X,
It is a figure showing the method of calculating Y). Reference point P₁With the origin
Azimuth reference point P₀Take the y-axis towards₁, l_Two,
l_ThreeIs the angle θ with the x-axis₁₁, θ_{twenty one}, θ₃₁Uses the horizontal included angle
And is expressed by the following equation. θ₁₁= Θ₁−π / 2, θ_{twenty one}= Θ_Two−π / 2− (π / 2−θ₁₁) =
θ₁+ Θ_Two−3π / 2, θ₃₁= Θ_Three−π / 2− (π / 2−θ_{twenty one}) = Θ
₁+ Θ_Two+ Θ_Three−5π / 2 The line segment l₁, l_Two, l_ThreeOrthogonal projection x of x to y-axis₁,
x_Two, x_ThreeAnd y₁, y_Two, y_ThreeIs represented by the following equation. x₁= L₁cosθ₁₁, x_Two= L_Twocosθ_{twenty one}, x_Three= L_Threecosθ₃₁ y₁= L₁sinθ₁₁, y_Two= L_Twosinθ_{twenty one}, y_Three= L_Threesinθ₃₁ Therefore, the target P to be found_mThe coordinates (X, Y) of
Is represented by X = x₁+ X_Two+ X_Three, Y = y₁+ Y_Two+ Y_Three The personal computer 16 converts the input measurement data into each of the above equations.
And the target P of the shield machine 33_mCoordinates
(X, Y) is calculated and displayed. In addition, the shield machine 33
The excavation proceeds, and a new hue is added to the rear end of the fume tube 34.
Pipes are sequentially added, and the reference point P₁And station P_TwoIn between
When the surveying instrument 1 is installed, the horizontal included angle,
The vertical angle is measured and the coordinates of the shield machine are calculated.
Needless to say. FIG. 6 is a diagram showing the basis input to the personal computer 16 in advance.
It is a figure which shows a quasi-planning line, and a worker has the same coordinates as FIG.
Slope β of each linear part of the reference plan line in the system₁, β_Two, β_ThreeWhen
The line segment length L₁, L_Three, L_FiveAnd the radius of curvature r of each curved part₁, r_Two
And its central angle α₁, α_TwoOr arc length L_Two, L_FiveTo your computer
input. The personal computer 16 converts this input data into a mathematical expression.
And store it in memory, and shield machine
Actual excavation distance L input from 33 etc.^*(See Fig. 6)
Based on the signal, the shield machine is on the reference plan line
Expected position P_m ^*Coordinates P_m ^*(Xm, Ym) is expressed by the above equation.
Calculate and display according to the formula. Next, the personal computer 16
Is measured by each surveying instrument 1 and stored as a correct value.
Horizontal included angle data θ₁, θ_Two, ... and distance data l₁, l_Two, ...
Coordinates P of the shield machine calculated_m(X, Y) and above plan line
Coordinates P_m ^*(Xm, Ym) and calculate the difference
And calculates the corrected angle values and displays them.
Therefore, the operator sets the corrected angle value at the measurement point P_ThreeMeasurement
After setting on the weighing instrument 1, it is activated. Do so
And the telescope of the total station 2 of the surveying instrument 1
4 rotates by the correction angle from the target position, telephoto
The laser beam from the mirror 4 irradiates the planned position. worker
Is the target P of the shield machine 33 at this irradiation point._mRank
Adjust the jack 36 to place it and correct the direction of excavation
Perform As described above, in the above embodiment, each measurement point
Input signal from the surveying instrument 1 installed in
Based on the reference plan line data, the measurement position of the shield machine 33
PC that calculates the position, the planned position and the deviation between both positions
6 for surveying in the curve propulsion method.
Speed and efficiency, and improve construction efficiency.
it can. In the above-described embodiment, the horizontal shaft 32 is
Of survey method in propulsion method to excavate inside
However, the surveying instrument of the present invention measures the vertical angle in addition to the horizontal included angle.
To measure the actual long distance to the previous and next measurement points
From these measurements, the three-dimensional coordinates of the machine
Propulsion in which the shaft can bend vertically as well
It goes without saying that the same can be applied to the construction method. [0024] As is apparent from the above description, claim 1
The invention of the invention relates to a starting shaft, following a machine for excavating the ground.
Tubes of a predetermined length are inserted one after another, and these tubes are
Propulsion device in the vertical shaft according to the excavator
Pressing forward, pushing forward, and burying it
Electronic transit and lightwave rangefinder
Incident light on the top of the
A surveying instrument with a fixed reflecting prism
A reference point in the starting shaft and a series of
In addition to fixed installation of multiple units according to the advance, intermediate surveying
By the instrument, front and rear adjacent to this intermediate surveying instrument
Collimate the reflection prism of each surveying instrument,
The horizontal included angle formed by the middle and rear surveying instruments and the middle
Forward distance from the surveying instrument to the above-mentioned forward and backward surveying instruments,
Measure the distance behind, then with the front surveying instrument,
The surveying instrument in front of and adjacent to this surveying instrument,
Collimate each reflective prism of the instrument,
The horizontal included angle of the middle surveying instrument and the
The next front from the weighing instrument to the preceding and intermediate survey instruments
Measure the distance, the next rear distance, and
When the backward distance matches within a predetermined error,Intermediate measurement
Collimation with a measuring instrument and collimation with a surveying instrument in front of the above
Correctly consult each of the adjacent reflective prisms
Is determined to beIn addition, the same
Repeat the collimation and measurement from the starting shaft to the excavator
To determine the position of the excavator,
Automatic adjustment of rhythm direction and collimation by surveying instruments
The measured forward distance and the next backward distance
The difference between the front and rear viewpoints depends on whether they match within the error of
Mis collimation and erroneous measurement due to reflected light from sources other than the projection prism.
Easy and quick measurement of excavator position with high accuracy
To improve the efficiency of surveying and, consequently, the propulsion method.
You.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a surveying instrument used in a surveying method of a propulsion method according to the present invention. FIG. 2 is a longitudinal sectional view along a propulsion direction showing an example of a curving propulsion method using the surveying instrument and an outline of a surveying method. FIG. 3 is a horizontal sectional view schematically showing the construction example and the surveying method. FIG. 4 is a flowchart showing a flow of the surveying method. FIG. 5 is a diagram showing a geometric method for obtaining coordinates of a measurement point. FIG. 6 is a diagram showing a reference plan line previously input to a personal computer. FIG. 7 is a horizontal sectional view showing a surveying method in a conventional propulsion method. [Description of Signs] 1 ... Surveying instrument, 2 ... Total station, 3 ... Reflecting prism, 4 ... Telescope, 5 ... Automatic leveling device, 7 ... Communication control device, 8 ... Power cable, 9 ... Interface cable, 10 ... Automatic leveling Semi-device communication control cable, 11 backup power supply, 12 power line, 13, 14 communication cable, 15 excavation control room, 16, 18 personal computer, 17
Office, 20: Gyro compass, 31: Starting shaft, 3
1a: bottom, 32: horizontal shaft, 33: shield machine, 34: fume tube, 35, 36: jack, P ₀ : orientation reference point, P
₁ … Reference point, P ₂ , P ₃ … Measurement point, P _m … Target, θ _{1 to} θ
₃ ... horizontal included angle, l ₀ ~l ₃ ... distance.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 15/00-15/06 E21D 9/06

Claims (1)

(57) [Claims] [Claim 1] Subsequent to an excavator for excavating the ground, pipes of a predetermined length are sequentially inserted from a starting shaft, and these tubes are propelled in the starting shaft. In the surveying method of the propulsion method of pushing and propelling and burying the excavator according to the excavation of the above excavator, the incident light is reflected in the direction of incidence on the top of the total station integrating the electronic transit and the lightwave range finder A plurality of surveying instruments with fixed reflecting prisms are fixedly installed according to the propulsion length at the reference point in the starting shaft and a series of pipes to be propelled, and an intermediate surveying instrument is used for the intermediate surveying. Collimate the reflective prism of each of the front and rear surveying instruments adjacent to the instrument,
Measure the horizontal included angle formed by the front, middle, and rear surveying instruments and the front distance and rear distance from the middle surveying instrument to the front and rear surveying instruments. Collimating the respective reflecting prisms of the front and rear surveying instruments adjacent to the surveying instrument, and the horizontal included angle formed by the front and rear surveying instruments and the intermediate surveying instrument and the front surveying instrument from the front surveying instrument. In each case, the next forward distance to the intermediate surveying instrument, the next backward distance is measured, and when the forward distance and the next backward distance match within a predetermined error, collimation by the intermediate surveying instrument and Before
The collimation by the surveying instrument is
It is determined that the rhythm has been correctly collimated, and further the same collimation and measurement by the surveying instrument in the foreground are repeated from the starting shaft to the excavator to obtain the position of the excavator. Survey method of propulsion method.