CN110258509A - A kind of cement soil wall processing method intrusively connecting wall chase section - Google Patents
A kind of cement soil wall processing method intrusively connecting wall chase section Download PDFInfo
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- CN110258509A CN110258509A CN201910441273.2A CN201910441273A CN110258509A CN 110258509 A CN110258509 A CN 110258509A CN 201910441273 A CN201910441273 A CN 201910441273A CN 110258509 A CN110258509 A CN 110258509A
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- 239000002689 soil Substances 0.000 title claims abstract description 43
- 239000004568 cement Substances 0.000 title claims abstract description 41
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 26
- 238000002604 ultrasonography Methods 0.000 claims abstract description 19
- 210000002421 cell wall Anatomy 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 15
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 239000003673 groundwater Substances 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000009991 scouring Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to the cement soil wall processing methods that one kind intrusively connects wall chase section, belong to foundation pit ground-connecting-wall Construction Technology of Retaining Structure field, specific steps include: that detection cement soil wall invades sunken, preparation of construction, rotary digging cylinder bores construction, sunken block is invaded at cutting inner corner trim, removes residue, reinspection；The cement soil wall processing method of the present invention for intrusively connecting wall chase section, it is detected by ultrasound wall instrument to sunken wall is invaded, the position for invading sunken wall can accurately be measured, improve construction efficiency, it can be bored by rotary digging cylinder and quickly dispose the cement soil wall intrusively connected within the walls, it is the exposure duration for reducing ground-connecting-wall cell wall, small to cell wall disturbance, it is safe, fast, efficient.
Description
Technical field
The invention belongs to foundation pit ground-connecting-wall Construction Technology of Retaining Structure fields, more particularly to one kind intrusively to connect wall chase section
Cement soil wall processing method.
Background technique
Ground-connecting-wall grooving in the poor stratas such as miscellaneous fill layer, weak layer of sand is difficult, mostly sets at this stage in ground-connecting-wall two sides
High-pressure rotary jet grouting pile or three axes agitating pile carry out cell wall reinforcing, and water-rich sand layer ground-connecting-wall seam crossing generallys use high-pressure rotary jet grouting pile or three
The anti-Sand of axis mixing pile.Drilling machine is inhomogenous by stratum in operation process, construct perpendicularity deviation, foundation bearing capacity are uneven
The influence of the factors such as even, cement soil wall intrusively connect wall chase section, and formation invades sunken wall, causes ground-connecting-wall can not grooving.Jump bit is auxiliary
Furtherance scouring machine repairs that the slot time is long and effect is bad, and this method should not be used under surrounding enviroment complex situations.
Such as Chinese Patent Application No. are as follows: a kind of place of diaphram wall collapse hole of the patent disclosure of CN201811358407.6
Reason method, the first step determine position；Second step, drilling；Third step observes situation in collapse hole area；4th step, the 5th step, the 6th
Step cleans the soil body and residue in collapse hole area；Whether the 7th step is observed in collapse hole area and being cleaned out；8th step carries out collapse hole area
Backfill；9th step, the detection backfill effect after concrete formation.The present invention is seen in drilling by drilling above collapse hole area
Collapse hole area situation is surveyed, and the soil body in collapse hole area is cleared up by high pressure water, and backfilled out of drilling using concrete, is overcome
Loose earth collapsing in periphery causes the continuity of ground-connecting-wall to be destroyed and is difficult to handle and repair during continuous wall trench underground
Problem, the method construction technology is simple, and the construction period is short, to existing structure disturb it is small, can be effectively treated ground-connecting-wall at
Quality problems in slot work progress, but it is not directly applicable realization and goes to the cement soil wall for intrusively connecting wall chase section
It removes.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide the cement soil wall processing that one kind intrusively connects wall chase section
Method for quickly disposing the cement soil wall intrusively connected in wall chase, and guarantees the stability of cell wall, and reduction makes an uproar to periphery
Sound pollution.
The cement soil wall processing method for intrusively connecting wall chase section, includes the following steps:
Step 1, detection cement soil wall is invaded sunken:
Step 1.1, it is being invaded in sunken slot section, is choosing 3 ultrasound examination points along longitudinal direction, ground-connecting-wall is divided into 4 sections；
Step 1.2, laterally disposed two channel steels in wall each ultrasound examination point two sides are led in ground-connecting-wall, by ultrasound wall
Instrument trolley pushes to channel steel platform, and wall instrument trolley front-rear position is surveyed in adjustment to be made to survey wall instrument alignment probe test point, and is located at ground-connecting-wall
1/2 position of wall width is led, starting surveys wall instrument at the uniform velocity lower section ultrasonic probe, synchronizes to form ultrasonograph, the printing of backstage instrument
Show the vertical width of wall；According to the imaging width of wall body data for not having to test point, determine that cement soil wall invades sunken thickness, portion
Position, and be modeled to invade the curved surface of sunken wall, sunken wall is invaded for the processing of rotary digging cylinder brill, and basic data is provided；
Step 2, preparation of construction:
Step 2.1, in inside, ground-connecting-wall leads wall, outside ground-connecting-wall is led on wall respectively using the radius that cylinder bores as distance measurement
Radial normal of the line of setting-out, inside layout point and outside layout point as rotary digging cylinder drill bit；
Step 2.2, rotary digging cylinder drill bit is installed on rotary drilling rig, prune job face removes surface gravel, mobile rotary digging
Drilling machine prepares construction to sunken slot section is invaded；
Step 3, rotary digging cylinder bores construction:
Step 3.1, decentralization rotary digging cylinder bores:
After rotary digging cylinder brill drilling machine is in place, rotary digging cylinder drill bit supports patch inside, and ground-connecting-wall leads wall, outside ground-connecting-wall leads the interior of wall
Wall is transferred to invading sunken depth, and applies pressure to sunken wall is invaded；
Step 3.2, rotary digging is constructed:
Sunken wall is invaded in the pick rotation grinding for driving rotary digging cylinder to bore using the drilling rod torsional forces of rotary drilling rig, is bored using rotary digging cylinder
Rotation by the wall for invading sunken wall cutting remove；
Step 4, it cuts at inner corner trim and invades sunken block:
Rotary digging cylinder drilling cuts section as circle, has in two circle intersections and invades sunken block at inner corner trim, bores a cutting in rotary digging cylinder
After the completion of circular treatment, in chute forming machine grab bucket sidewall weld 10mm steel plate as scraper, the scraper of chute forming machine grab bucket side wall is utilized
Fritter part at inner corner trim is struck off, then carries out next cutting circulation until thoroughly removing cement soil wall in slot section；
Step 5, residue is removed:
It is successively removed after invading sunken wall from top to bottom, is grabbed bucket using chute forming machine and pull the residue in slot section out；
Step 6, it rechecks:
Groove depth and sediment thickness are checked using lining rope, using the ground-connecting-wall cell wall after ultrasound wall instrument measurement processing, root
According to surveying wall analysis treated cell wall verticality less than 3 ‰ and external corner projecture being not present, it is qualified to determine；Otherwise analysis is local again
It is existing to invade limit cement soil wall, Repeated Cutting construction technology, until processing completes reinspection verticality less than 3 ‰.
Further, in step 3.1, the torsional forces that rotary digging cylinder bores is set as 40~75KNm.
Further, in step 3, rotary digging construction simultaneously to Adjacent Buildings settle and be displaced and ground sedimentation into
Row monitoring.
Further, in step 3.2, rotary digging cylinder bores from invading sunken wall one end and successively cuts construction, each cutting to the other end
Lateral distance between point is that rotary digging cylinder bores radius length, and the vertical cutting depth of the single of cutting point is 2m, and whole groove segment is vertical
After the completion of the every 2m cutting of depth, is grabbed bucket using chute forming machine and pull the residue for invading sunken wall machined away out, carry out next section of vertical 2m
Construction circulation construction, until processing is completed；
Further, in step 5, scouring machine grab bucket decentralization and promotion are all kept slowly at the uniform velocity, and by detecting and supplementing mud
Slurry keeps mud liquid level higher than level of ground water and leads 3 top surface of wall less than 50cm apart from ground-connecting-wall.
The beneficial effects of the present invention are:
1. the cement soil wall processing method of the present invention for intrusively connecting wall chase section, by ultrasound wall instrument to invading sunken wall
It is detected, can accurately measure the position for invading sunken wall, improve construction efficiency.
2. the cement soil wall processing method of the present invention for intrusively connecting wall chase section can bore quickly processing by rotary digging cylinder
Fall the cement soil wall intrusively connected within the walls, reduce the exposure duration of ground-connecting-wall cell wall, small, safety, quick, height are disturbed to cell wall
Effect.
3. the cement soil wall processing method of the present invention for intrusively connecting wall chase section is not needed additionally to put into material, not produced
Raw waste, small on the influence of the environment such as surrounding building, town road, construction noise is low, is good for the environment.
Detailed description of the invention
Fig. 1 is the cement soil wall processing method ultrasound examination point distribution signal of the present invention for intrusively connecting wall chase section
Figure；
Fig. 2 is the cement soil wall processing method surveying and locating point bit plan of the present invention for intrusively connecting wall chase section；
Fig. 3 is the rotary digging cylinder drill bit structural representation of the cement soil wall processing method of the present invention for intrusively connecting wall chase section
Figure；
Fig. 4 is that rotary digging cylinder bores machining construction in the cement soil wall processing method of the present invention for intrusively connecting wall chase section
Structural schematic diagram；
Fig. 5 is that rotary digging cylinder bores machining construction in the cement soil wall processing method of the present invention for intrusively connecting wall chase section
Cross-sectional view of the structure；
Fig. 6 is that fritter invades sunken signal at inner corner trim in the cement soil wall processing method of the present invention for intrusively connecting wall chase section
Figure.
Marked in the figure: ground-connecting-wall 1- ultrasound examination point, 2- to be processed, 3- ground-connecting-wall lead wall, 4- layout point, 5- radial direction
Normal, 6- rotary digging cylinder brill, 7- pick, 8- invade sunken wall, invade sunken block at 9- inner corner trim.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings of the specification.
The cement soil wall processing method for intrusively connecting wall chase section, specifically comprises the following steps:
Step 1, as shown in Figure 1 and Figure 2, detection cement soil wall is invaded sunken:
Step 1.1, it is being invaded in sunken slot section, 3 ultrasound examination points 1 is being chosen along longitudinal direction, by ground-connecting-wall 2 to be processed etc.
It is divided into 4 sections；
Step 1.2, ultrasound wall instrument is set on ultrasound examination point 1 respectively, it is sunken to invading using ultrasound wall instrument
Wall 8 is detected, and determines that cement soil wall invades sunken size and is modeled to invade the curved surface of sunken wall 8, is bored 6 processing for rotary digging cylinder and is invaded sunken wall
8 provide basic data；Concrete operation step are as follows: lead 3 laterally disposed two slots in 1 two sides of each ultrasound examination point of wall in ground-connecting-wall
Ultrasound wall instrument trolley is pushed to channel steel platform by steel, and wall instrument trolley front-rear position is surveyed in adjustment to be made to survey the detection of wall instrument alignment probe
Point, and be located at ground-connecting-wall and lead 3 width of wall, 1/2 position, wall instrument at the uniform velocity lower section ultrasonic probe is surveyed in starting, as probe is in ground-connecting-wall
Slowly decentralization synchronizes to form ultrasonograph in mud, the backstage instrument printing display vertical width of wall；According to without test point
Imaging width of wall body data, determine that cement soil wall invades sunken thickness, position, and be modeled to invade the curved surface of sunken wall 8, be rotary digging cylinder
It bores 6 processing and the sunken offer of wall 8 basic data is provided；
Step 2, preparation of construction:
Step 2.1, in inside, ground-connecting-wall leads wall 3, outside ground-connecting-wall is led on wall 3 respectively using the radius of cylinder brill as between spacing
Away from surveying and locating, the line of inside layout point 4 and outside layout point 4 bores 6 drill bit radial direction normals 5 as rotary digging cylinder；
Step 2.2, the drill bit that rotary digging cylinder bores 6 is installed on rotary drilling rig, prune job face removes surface gravel, mobile
Rotary drilling rig prepares construction to sunken slot section is invaded；
Step 3, as shown in Fig. 3,4,5, rotary digging cylinder bores 6 constructions:
Step 3.1, rotary digging cylinder in lower section bores 6:
After rotary digging cylinder 6 drilling machines of brill are in place, the drill bit that rotary digging cylinder bores 6 supports patch inside, and ground-connecting-wall leads wall 3, outside ground-connecting-wall leads wall
3 inner wall is transferred to invading sunken depth, and applies pressure to sunken wall 8 is invaded, and the torsional forces that rotary digging cylinder bores 6 is set as 40~75KNm；
Step 3.2, rotary digging is constructed:
It drives the rotation grinding of pick 7 of rotary digging cylinder brill 6 to invade sunken wall using the drilling rod torsional forces of rotary drilling rig, utilizes rotary digging cylinder
The rotation for boring 6 removes the wall for invading sunken wall 8 cutting；Rotary digging cylinder brill 6, which is ground to certain depth, normally to be descended outside brill or drill bit
It floats, telephone-moving immediately to another hole location carries out set and bores construction.
Rotary digging cylinder bores 6 and successively cuts construction to the other end from sunken 8 one end of wall is invaded, and the lateral distance between each cutting point is
Rotary digging cylinder bores 6 radius lengths, and the vertical cutting depth of the single of cutting point is 2m, and the whole every 2m cutting of the vertical depth of groove segment is completed
Afterwards, it is grabbed bucket using chute forming machine and pulls the residue for invading sunken wall 8 machined away out, carry out next section of vertical 2m construction circulation construction, directly
It is completed to processing；
Step 4, it cuts at inner corner trim and invades sunken block 9:
As shown in fig. 6, it is circle that rotary digging cylinder, which bores 6 cutting sections, has in two circle intersections and invade sunken 9 (about 53mm of block at inner corner trim
It is wide), after the completion of rotary digging cylinder bores 6 one cutting circular treatments, in chute forming machine grab bucket sidewall weld 10mm steel plate as scraper, benefit
The fritter part at inner corner trim is struck off with the scraper of chute forming machine grab bucket side wall, then carries out next cutting circulation until thoroughly removing
Cement soil wall in slot section；
Step 5, residue is removed:
It is successively removed after invading sunken wall 8 from top to bottom, is grabbed bucket using chute forming machine and pull the residue in slot section out；Chute forming machine grab bucket
Decentralization and promotion all keep slowly at the uniform velocity, reducing grab bucket to the collision of cell wall and mud being caused to vibrate every time；Mud is prevented in construction
Slurry miss and in time mend slurry, always maintain gutter section mud level height, guarantee mud liquid level it is higher than level of ground water and away from
3 top surface of wall is led less than 50cm from ground-connecting-wall；Rainy day level of ground water increases mud balance and viscosity when rising in time, when rainfall is larger
Suspend grooving, and covers notch；
Step 6, it rechecks:
Groove depth and sediment thickness are checked using lining rope, guarantee that groove depth, sediment meet design requirement；Using ultrasound wall instrument
Ground-connecting-wall cell wall after measurement processing, according to surveying wall analysis treated cell wall verticality less than 3 ‰ and external corner projecture be not present,
It is qualified to determine；Otherwise again analysis be locally present invade limit cement soil wall, Repeated Cutting construction technology, until reinspection is completed in processing
Verticality is less than 3 ‰
Further, in step 3, rotary digging construction simultaneously to Adjacent Buildings settle and be displaced and ground sedimentation into
Row monitoring.
Although present inventive concept specifically combines exemplary embodiment to carry out showing and describsion in front,
Persons skilled in the art should be appreciated that do not depart from it is of the invention described by claim and the innovation thinking that limits
Under the premise of spirit and scope, it can make a variety of changes in form and details.
Claims (5)
1. the cement soil wall processing method that one kind intrusively connects wall chase section, which comprises the steps of:
Step 1, detection cement soil wall is invaded sunken:
Step 1.1, it is being invaded in sunken slot section, is choosing 3 ultrasound examination points along longitudinal direction, ground-connecting-wall is divided into 4 sections；
Step 1.2, laterally disposed two channel steels in wall each ultrasound examination point two sides are led in ground-connecting-wall, ultrasound wall instrument is small
Vehicle pushes to channel steel platform, and wall instrument trolley front-rear position is surveyed in adjustment to be made to survey wall instrument alignment probe test point, and is located at ground-connecting-wall and is led wall
1/2 position of width, starting survey wall instrument at the uniform velocity lower section ultrasonic probe, synchronize to form ultrasonograph, the printing display of backstage instrument
The vertical width of wall；According to the imaging width of wall body data for not having to test point, determine that cement soil wall invades sunken thickness, position, and
It is modeled to invade the curved surface of sunken wall, invades sunken wall for the processing of rotary digging cylinder brill and basic data is provided；
Step 2, preparation of construction:
Step 2.1, in inside, ground-connecting-wall leads wall, outside ground-connecting-wall is led and put respectively using the radius that cylinder bores as distance measurement on wall
Radial normal of the line of sample, inside layout point and outside layout point as rotary digging cylinder drill bit；
Step 2.2, rotary digging cylinder drill bit is installed on rotary drilling rig, prune job face removes surface gravel, mobile rotary drilling rig
To sunken slot section is invaded, prepare construction；
Step 3, rotary digging cylinder bores construction:
Step 3.1, decentralization rotary digging cylinder bores:
After rotary digging cylinder brill drilling machine is in place, rotary digging cylinder drill bit supports patch inside, and ground-connecting-wall leads wall, outside ground-connecting-wall is led under the inner wall of wall
It puts to invading sunken depth, and applies pressure to sunken wall is invaded；
Step 3.2, rotary digging is constructed:
Sunken wall is invaded in the pick rotation grinding for driving rotary digging cylinder to bore using the drilling rod torsional forces of rotary drilling rig, is turned using what rotary digging cylinder bored
It is dynamic to remove the wall for invading sunken wall cutting；
Step 4, it cuts at inner corner trim and invades sunken block:
Rotary digging cylinder drilling cuts section as circle, has in two circle intersections and invades sunken block at inner corner trim, bores a cutting circulation in rotary digging cylinder
It, will be negative using the scraper of chute forming machine grab bucket side wall in chute forming machine grab bucket sidewall weld 10mm steel plate as scraper after the completion of processing
Fritter part at angle is struck off, then carries out next cutting circulation until thoroughly removing cement soil wall in slot section；
Step 5, residue is removed:
It is successively removed after invading sunken wall from top to bottom, is grabbed bucket using chute forming machine and pull the residue in slot section out；
Step 6, it rechecks:
Groove depth and sediment thickness are checked using lining rope, using the ground-connecting-wall cell wall after ultrasound wall instrument measurement processing, according to survey
Wall analysis treated cell wall verticality is less than 3 ‰ and external corner projecture is not present, and it is qualified to determine；Otherwise analysis is locally present again
Invade limit cement soil wall, Repeated Cutting construction technology, until processing completes reinspection verticality less than 3 ‰.
2. the cement soil wall processing method that one kind according to claim 1 intrusively connects wall chase section, which is characterized in that described
In step 3.1, the torsional forces that rotary digging cylinder bores is set as 40~75KNm.
3. the cement soil wall processing method that one kind according to claim 1 intrusively connects wall chase section, which is characterized in that described
In step 3, rotary digging construction settles Adjacent Buildings and is displaced simultaneously and the sedimentation on ground is monitored.
4. the cement soil wall processing method that one kind according to claim 1 intrusively connects wall chase section, which is characterized in that described
In step 3.2, rotary digging cylinder bores from invading sunken wall one end and successively cuts construction to the other end, and the lateral distance between each cutting point is
Rotary digging cylinder bores radius length, and the vertical cutting depth of the single of cutting point is 2m, after the completion of the whole every 2m cutting of the vertical depth of groove segment,
It is grabbed bucket using chute forming machine and pulls the residue for invading sunken wall machined away out, next section of vertical 2m construction circulation construction is carried out, until place
Reason is completed.
5. the cement soil wall processing method that one kind according to claim 1 intrusively connects wall chase section, which is characterized in that described
In step 5, scouring machine grab bucket decentralization and promotion are all kept slowly at the uniform velocity, and by detecting and supplementing mud, keep mud liquid level ratio
Level of ground water is high and leads 3 top surface of wall less than 50cm apart from ground-connecting-wall.
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| CN110805307A (en) * | 2019-10-31 | 2020-02-18 | 中铁二局集团有限公司 | Underground continuous wall removing method |
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| 李家涛等: "某邻近河道深基坑止水处理技术 ", 《施工技术》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805307A (en) * | 2019-10-31 | 2020-02-18 | 中铁二局集团有限公司 | Underground continuous wall removing method |
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