CN207623143U - The intelligent experimental rig that a kind of detection soil body horizontal direction tension is split - Google Patents
The intelligent experimental rig that a kind of detection soil body horizontal direction tension is split Download PDFInfo
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- CN207623143U CN207623143U CN201721894077.3U CN201721894077U CN207623143U CN 207623143 U CN207623143 U CN 207623143U CN 201721894077 U CN201721894077 U CN 201721894077U CN 207623143 U CN207623143 U CN 207623143U
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- circular hole
- soil body
- bottom plate
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- horizontal direction
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Abstract
The utility model is related to the intelligent experimental rigs that a kind of detection soil body horizontal direction tension is split, which includes pedestal, sample load units, measuring unit, power loading unit and data processing unit.The utility model can either it is easy and accurately measure the soil body tensile strength, soil body tensile strength and the variation relation figure of displacement can also be drawn out automatically on computers simultaneously, and the image data that the soil body is gradually broken under tensile stress can be preserved, so that preferably I studies the tensile characteristics offer reference frame of the soil body.
Description
Technical field
The utility model belongs to centrifugal modeling technical field, is split more particularly to a kind of detection soil body horizontal direction tension
Intelligent experimental rig.
Background technology
In Traditional project geological environment and soil body mechanical property Quality Research, the soil body does not make as tensile materials actively usually
It is considered as with, it is believed that the tensile strength very little of the soil body or almost zero, the tensile strength of the soil body in Practical Project is caused usually to be neglected
Depending on, and resistance to compression and shearing resistance are laid particular emphasis on to soil body mechanical property Quality Research also more, it is less to the research of tension.In fact, the soil body
Tensile characteristics play very important effect during soil deformation and failure, thus also produce many associated
Soil body engineering problem.For example the development of the crack phenomenon, ground fissure developed in the soil body in dry environment, the tensioning at side slope rear portion are split
The drawing crack destruction etc. of gap, core of earth-rockfill dam under arching effect, has close ties with soil body pulling damage.Therefore, right
The tensile characteristics of the soil body are studied, and the tensile strength of the soil body is measured, and take certain engineering measure to improve the anti-of the soil body
Tensile strength has important engineering significance.
The test of the well known tensile strength to the soil body mainly carries out indoors, and test method can be divided into two classes：One
Class is direct measuring method, i.e. uniaxial tensile test and triaxial extension test method；Another kind of is Indirect Determination, including radial pressure
Split experiment, bending beam test and ring-shaped sample method etc..Since there are more theory hypothesis for Indirect Determination, pass through a series of meters
Obtained tensile strength can not directly react mechanical property when soil mass fragmentation, have larger difference with actual conditions.And it is straight
It is directly to apply tensile stress at the both ends of soil sample until rupture failure, the result of acquisition have higher reliability to connect measuring method.
Meanwhile the research of soil body shearing-resistance characteristic is compared, up to the present there is no the soil body tensile strength examination that industry is generally accepted
Experiment device.
A kind of integrating dependable performance, using easy detection soil body horizontal direction in conclusion how to accelerate to research and develop
The intelligent experimental rig that tension is split is a urgent task of this field.
Invention content
A kind of detection soil body horizontal is provided the purpose of this utility model is to overcome deficiency of the prior art
The intelligent experimental rig that direction tension is split, the utility model can either it is easy and accurately measure the soil body tensile strength, together
When can also draw out soil body tensile strength and the variation relation figure of displacement automatically on computers, and the soil body can be preserved
The image data being gradually broken under tensile stress, so that preferably I studies the tensile characteristics offer reference of the soil body.
According to the utility model proposes a kind of intelligent experimental rig that splits of detection soil body horizontal direction tension, feature exists
In, including pedestal, sample load units, measuring unit, power loading unit and data processing unit, the pedestal be equipped with
Sample load units, measuring unit and power loading unit, the measuring unit, power loading unit respectively by data line with
Data processing unit connects；The sample load units include waveform mold, bolt and the first bottom plate, the measuring unit packet
Pulling force sensor, back springing type displacement sensor, imaging sensor, the second bottom plate and flexible jointing-rod are included, the power load is single
Member includes lead screw, guide rod and motor, and the data processing unit includes demodulator and computer, and the demodulator passes through data
Line is connected with computer；The waveform mold is that the part of left and right two is spliced, and side wall is equipped with eight circular holes, waveform mould
The left end of tool is arranged on the first bottom plate, is connect with pulling force sensor by drag hook and connector, right end is set on the base；It is described
One end of lead screw is connect across the second bottom plate with motor, and the other end is fixed on the base；One end of the guide rod sequentially passes through
First bottom plate and the second bottom plate are connect with pedestal, and the other end is fixed on the base；The pulling force sensor is fixed on the second bottom plate
On；The back springing type displacement sensor is located on pedestal；Described image sensor is fixed on waveform mould by flexible jointing-rod
The surface at the intermediate position of tool；Pulling force sensor, back springing type displacement sensor and imaging sensor respectively by data line with
Data processing unit is connected；The motor of the power loading unit is connected by data line with data processing unit.
The realization principle of the utility model is：The sample prepared is put into waveform mold, motor, lead screw band are started
Level is moved to the left the left end of dynamic second bottom plate, pulling force sensor and waveform mold together, and sample tension produces fracture；It is oriented to
Bar one end is fixed on the base, and the other end sequentially passes through the first bottom plate and the second bottom plate is connect with pedestal, a left side for waveform mold
End is fixed on by bolt on the first bottom plate, and the left end of waveform mold can drive the first bottom plate, the first bottom plate when occurring mobile
Can be moved along guide rod, the first bottom plate will not because of by sample when resisting tensile stress generated counter-force and deviate original
Position, this ensure sample stress direction it is consistent；The both sides of waveform mold are in wavy, the inner wall of increase waveform mold
On the one hand contact area between sample avoids the soil body from end effect occur, on the other hand ensures the soil body and waveform mold
Side wall between do not generate sliding；During rupture failure occurs for sample, during computer is accurate, continuously record is tested
Parameters, according to the sample picture at displacement flux matched corresponding moment.
Its remarkable advantage is the utility model compared with prior art：
When the utility model preset the soil body fracture position, and can proof stress loading speed, test repeatability
It is good.
Second is that the utility model uses pulling force sensor and back springing type displacement sensor, test data accuracy is high, and
The variation relation figure of tensile stress and soil sample displacement in drawing process can continuously be recorded.
Third, the utility model, which applies horizontal direction tensile stress, stretches soil sample, the soil body itself when vertical direction stretches is avoided
Influence of the gravity to test result.
Fourth, the utility model can be tested simply and quickly, a large amount of time cost, the utility model have been saved
Suitable for all kinds of soil body engineerings, there is good practicability.
Fifth, the utility model is able to record and preserves the image data that the soil body is gradually broken under tensile stress, so as to for more
The tensile characteristics for studying the soil body well provide reference frame.
Description of the drawings
Fig. 1 be the utility model proposes a kind of vertical view of intelligent experimental rig split of detection soil body horizontal direction tension
Figure.
Fig. 2 be the utility model proposes a kind of side of intelligent experimental rig split of detection soil body horizontal direction tension cut open
Figure.
Fig. 3 be the utility model proposes the first bottom plate structural schematic diagram.
Fig. 4 be the utility model proposes the second bottom plate structural schematic diagram.
Fig. 5 be the utility model proposes waveform mold structural schematic diagram.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.
In conjunction with Fig. 1-5, the utility model proposes a kind of intelligent experimental rig that splits of detection soil body horizontal direction tension, packet
Pedestal 8, sample load units, measuring unit, power loading unit and data processing unit are included, the pedestal 8 is equipped with examination
Sample load units, measuring unit and power loading unit, the measuring unit, power loading unit pass through data line and number respectively
It is connected according to processing unit；The sample load units include waveform mold 13, bolt 12 and the first bottom plate 4, and the measurement is single
Member includes pulling force sensor 10, back springing type displacement sensor 7, imaging sensor 1, the second bottom plate 3 and flexible jointing-rod 15, described
Power loading unit includes lead screw 6, guide rod 5 and motor 9, and the data processing unit includes demodulator 14 and computer 16,
The demodulator 14 is connected by data line with computer 16；The waveform mold 13 is that the part of left and right two is spliced, side
Wall is equipped with eight circular holes, and the left end of waveform mold 13 is arranged on the first bottom plate 4, passes through drag hook 2 and connector 11 and pulling force
Sensor 10 connects, and right end is arranged on pedestal 8；One end of the lead screw 6 is connect across the second bottom plate 3 with motor 9, the other end
It is fixed on pedestal 8；One end of the guide rod 5 sequentially passes through the first bottom plate 4 and the second bottom plate 3 is connect with pedestal 8, the other end
It is fixed on pedestal 8；The pulling force sensor 10 is fixed on the second bottom plate 3；The back springing type displacement sensor 7 is located at pedestal
On 8；Described image sensor 1 is fixed on the surface at the intermediate position of waveform mold 13 by flexible jointing-rod 15；Pulling force
Sensor 10, back springing type displacement sensor 7 and imaging sensor 1 are connected by data line with data processing unit respectively；Institute
The motor 9 for stating power loading unit is connected by data line with data processing unit.
The utility model proposes a kind of intelligent experimental rig that splits of detection soil body horizontal direction tension it is further preferred
Scheme is：
The pedestal 8 is equipped with waveform mold 13, motor 9, back springing type displacement sensor 7, lead screw 6, guide rod 5, soft
Property connecting rod 15；The motor 9 is stepless speed-change motor or multi-change speed motor.
The upper surface of first bottom plate 4 is set there are four circular hole, corresponding with the circular hole on waveform mold 13, by inserting
Pin 12 is connected with waveform mold 13, and upper surface is chimeric with waveform mold 13 equipped with groove, and side is equipped with perforative first
Left circular hole 17 and the first right circular hole 18.
The side of second bottom plate 3 is equipped with the perforative second left circular hole 19, middle circular hole 21 and the second right circular hole 20；Institute
That states middle circular hole 21 is internally provided with the internal thread opposite with lead screw 6；The lead screw 6 is screw rod or ball screw, passes through middle circular hole
21。
The second left circular hole 19, the second right circular hole 20, the first left circular hole 17 are identical with the aperture of the first right circular hole 18.
The guide rod is column iron, and quantity is two, and one of guide rod passes through the first left circular hole 17 and second
Left circular hole 19, another guide rod pass through the first right circular hole 18 and the second right circular hole 20.
The quantity at least two of the back springing type displacement sensor 7.
The flexible jointing-rod 15 can be arbitrarily bent, and shape after bending is fixed.
Embodiment 1.The utility model proposes a kind of master of intelligent experimental rig split of detection soil body horizontal direction tension
It wants the design parameter of component and requires further to be disclosed directly below：
The material of waveform mold 13 described in the utility model is iron, and plating, length 100mm, width 80mm are high
50mm is spent, wall thickness 10mm, the fracture position of middle preset is apart from both sides 50mm；
Bolt 12 is in cylinder, and basal diameter 5mm, length 60mm, material is iron, plating；
The range of pulling force sensor 10 is 0~300N, precision 0.01N；
The displacement range of back springing type displacement sensor 7 is 50mm；
A diameter of 10mm of lead screw 6, length 25cm are threaded, and material is iron, plating；
A diameter of 10mm of guide rod 5, length 20cm, surface is smooth, and material is iron, plating；
Motor 9 has the function of advancing, retreat and stopping, and loading speed has 0.8mm/min, 1.2mm/min and 2.4mm/
Min tri- is kept off.
Embodiment 2.Below with the utility model proposes a kind of detection soil body horizontal direction tension split intelligence experiment dress
The application method set is Application Example, and specific implementation step is as follows：
Step 1, intelligent experimental rig is assembled：Drag hook 2 and connector 11 are subjected to embedded connection, bolt 12 is inserted into, makes wave
Shape wave mold 13 is bonded with the first bottom plate 4, pedestal 8 respectively；Start motor 9, adjusts the position of the first bottom plate 4, the first bottom
Plate 4 and pedestal 8 stop motor 9 after contacting；
Step 2, sample is loaded：According to the control condition of moisture content and compactness, the soil of certain mass is weighed, is put into assembling
In good waveform mold 13, uniformly pave；Or sample is prepared using special cutting ring, sample is put into assembled waveform
In mold 13；
Step 3, tensile sample：It operates computer 16 and starts motor 9, start to apply pulling force to sample, until sample fracture；
After sample fracture, stop experiment, extract bolt 12, remove waveform mold 13, takes out the sample being wherein broken；
Step 4, test data is obtained：Computer 16 receives and the measurement data of storage measuring unit, is included in and tested
The pulling force that sample is subject in journey, the displacement of generation and the image of whole process；Measured data are handled by computer 16,
It obtains complete load-deformation curve and mixes the sample picture at corresponding moment.
All explanations not related to belong to techniques known in specific embodiment of the present utility model, can refer to public affairs
Know that technology is implemented.
The utility model achieves satisfied trial effect through validation trial.
Claims (8)
1. the intelligent experimental rig that a kind of detection soil body horizontal direction tension is split, which is characterized in that filled including pedestal (8), sample
Carrier unit, measuring unit, power loading unit and data processing unit, the pedestal (8) are equipped with sample load units, survey
Unit and power loading unit are measured, the measuring unit, power loading unit are connected by data line and data processing unit respectively
It connects；The sample load units include that waveform mold (13), bolt (12) and the first bottom plate (4), the measuring unit include
Pulling force sensor (10), back springing type displacement sensor (7), imaging sensor (1), the second bottom plate (3) and flexible jointing-rod (15),
The power loading unit includes lead screw (6), guide rod (5) and motor (9), and the data processing unit includes demodulator (14)
With computer (16), the demodulator (14) is connected by data line with computer (16)；The waveform mold (13) is
The part of left and right two is spliced, and side wall is equipped with eight circular holes, and the left end of waveform mold (13) is arranged on the first bottom plate (4),
It is connect with pulling force sensor (10) by drag hook (2) and connector (11), right end is arranged on pedestal (8)；The one of the lead screw (6)
End is connect across the second bottom plate (3) with motor (9), and the other end is fixed on pedestal (8)；One end of the guide rod (5) is successively
It is connect with pedestal (8) across the first bottom plate (4) and the second bottom plate (3), the other end is fixed on pedestal (8)；The pull sensing
Device (10) is fixed on the second bottom plate (3)；The back springing type displacement sensor (7) is located on pedestal (8)；Described image sensor
(1) surface at the intermediate position of waveform mold (13) is fixed on by flexible jointing-rod (15)；Pulling force sensor (10) returns
Bullet formula displacement sensor (7) and imaging sensor (1) are connected by data line with data processing unit respectively；The power adds
The motor (9) of carrier unit is connected by data line with data processing unit.
2. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 1 is split, which is characterized in that
The pedestal (8) is equipped with waveform mold (13), motor (9), back springing type displacement sensor (7), lead screw (6), guide rod
(5), flexible jointing-rod (15)；The motor (9) is stepless speed-change motor or multi-change speed motor.
3. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 2 is split, which is characterized in that
The upper surface of first bottom plate (4) is set there are four circular hole, corresponding with the circular hole on waveform mold (13), passes through bolt
(12) it is connected with waveform mold (13), upper surface is chimeric with waveform mold (13) equipped with groove, and side is equipped with perforative
First left circular hole (17) and the first right circular hole (18).
4. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 3 is split, which is characterized in that
The side of second bottom plate (3) is equipped with the perforative second left circular hole (19), middle circular hole (21) and the second right circular hole (20)；It is described
Middle circular hole (21) is internally provided with the internal thread opposite with lead screw (6)；The lead screw (6) is screw rod or ball screw, in passing through
Circular hole (21).
5. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 4 is split, which is characterized in that
The second left circular hole (19), the second right circular hole (20), the first left circular hole (17) are identical with the first right aperture of circular hole (18).
6. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 5 is split, which is characterized in that
The guide rod is column iron, and quantity is two, and one of guide rod passes through the first left circular hole (17) and the second left circular hole
(19), another guide rod passes through the first right circular hole (18) and the second right circular hole (20).
7. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 6 is split, which is characterized in that
The quantity at least two of the back springing type displacement sensor (7).
8. the intelligent experimental rig that a kind of detection soil body horizontal direction tension according to claim 7 is split, which is characterized in that
The flexible jointing-rod (15) can arbitrarily be bent, and shape after bending is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721894077.3U CN207623143U (en) | 2017-12-29 | 2017-12-29 | The intelligent experimental rig that a kind of detection soil body horizontal direction tension is split |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721894077.3U CN207623143U (en) | 2017-12-29 | 2017-12-29 | The intelligent experimental rig that a kind of detection soil body horizontal direction tension is split |
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| CN207623143U true CN207623143U (en) | 2018-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254249A (en) * | 2017-12-29 | 2018-07-06 | 河海大学 | A kind of intelligent experimental rig and its application method for being used to measure soil body tensile strength |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254249A (en) * | 2017-12-29 | 2018-07-06 | 河海大学 | A kind of intelligent experimental rig and its application method for being used to measure soil body tensile strength |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |