CN107675713A - Pattern foundation pit supporting structure Larsen steel sheet pile system and construction method - Google Patents
Pattern foundation pit supporting structure Larsen steel sheet pile system and construction method Download PDFInfo
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- CN107675713A CN107675713A CN201711017091.XA CN201711017091A CN107675713A CN 107675713 A CN107675713 A CN 107675713A CN 201711017091 A CN201711017091 A CN 201711017091A CN 107675713 A CN107675713 A CN 107675713A
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- braced wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- 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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
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- Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a kind of pattern foundation pit supporting structure steel sheet pile system, including longitudinal braced wall, in longitudinal braced wall a plurality of horizontal braced wall is provided with away from foundation ditch side, row's steel-pipe pile is sunk in the stabilization zone of back, steel-pipe pile is fixedly connected with corresponding horizontal braced wall one end termination, three-dimensional junction steel plate stake is disposed in longitudinal braced wall, and the Larsen steel sheet pile of horizontal braced wall other end termination is connected with three-dimensional junction steel plate stake.Two inclined compensation linkages are symmetrical arranged between two adjacent horizontal braced walls, high-pressure rotary jet grouting pile is set respectively in the corresponding zigzag recess of longitudinal braced wall and horizontal braced wall.Installation method is as follows：1）Longitudinal braced wall and horizontal braced wall difference construction forming are simultaneously connected, 2 with longitudinal braced wall）Installation compensation linkage, 3）The shaping of high-pressure rotary jet grouting pile.Present invention reduces construction period, reduces construction cost, easy for construction, and cutting depth can be more than 3 meters of foundation ditch under the geological conditions of Broken rock mass loose media.
Description
Technical field
The present invention relates to a kind of containment system for building foundation pit, more particularly to a kind of depth deep basal pit below -3 meters
The Larsen steel sheet pile system of supporting, includes the construction method of aforementioned system, belongs to technical field of building construction.
Background technology
Existing foundation ditch typically uses Larsen steel sheet pile supporting, but foundation depth is only limitted within -3 meters, limitation compared with
Greatly.Larsen steel sheet pile need to combine to form binary supporting structure system with anchor pole, and be become actively by applying prestressing force to anchor pole
Stress system, supporting foundation pit could be stablized to improve control foundation pit deformation ability.When this method not only applies prestressing force wait
Between long, grouting process holding time, construction environment is poor, limited speed system, installation need specific drilling tool, cannot be used for rock crushing
The defects of band loose media.
As the emergence of deep basal pit demand of the depth below -3 meters is, it is necessary to a kind of deep foundation pit support Larsen steel sheet pile
System and construction method, the cumbersome support anchor rod of construction is abandoned, utilized the excellent water proofing property of Larsen steel sheet pile and construction
Rapidity, the construction cost of the Larsen steel sheet pile system of deep foundation pit support is reduced, improve efficiency of construction.
The content of the invention
It is an object of the invention to provide a kind of quick, economy, using wide, the easy for construction pattern foundation pit supporting structure Larsen steel plate in stratum
Stake system and construction method.
The present invention is achieved by the following technical programs：
A kind of pattern foundation pit supporting structure Larsen steel sheet pile system, including as longitudinal braced wall on the inside of foundation ditch sideline, longitudinal supporting
Wall is in the zigzag of side indent opposite side evagination, and the zigzag is carved each other by the adjacent lock of more Larsen steel sheet pile both sides
Conjunction forms；The a plurality of horizontal braced wall for being transversely to the machine direction braced wall is interval with away from foundation ditch side in longitudinal braced wall, longitudinal direction
Braced wall is provided with back stabilization zone away from the outside of foundation ditch, and it is parallel with longitudinal braced wall to sink to a row in the back stabilization zone
Steel-pipe pile, the steel-pipe pile are fixedly connected with corresponding horizontal braced wall one end termination；Horizontal supporting wall structure and longitudinal supporting
Wall is identical, and the three-dimensional junction steel plate stake with three faces lock is disposed in longitudinal braced wall, horizontal braced wall other end end
The Larsen steel sheet pile of head is connected Larsen steel sheet pile with three-dimensional and is connected；Two are symmetrical arranged between two adjacent horizontal braced walls
Inclined compensation linkage, the both ends of the compensation linkage are respectively with steel-pipe pile termination and positioned at two adjacent horizontal supportings
It is fixedly connected in the middle part of one section of longitudinal braced wall between wall；In the corresponding zigzag recess of longitudinal braced wall and horizontal braced wall
High-pressure rotary jet grouting pile is set respectively.
The purpose of the present invention can also further be realized by following technical measures.
Further, horizontal locking board, horizontal supporting are vertically extended in the middle part of the back plate of the three-dimensional junction steel plate stake
One side lock of wall other end termination Larsen steel sheet pile is connected with the upper side lock of the horizontal locking board of three-dimensional junction steel plate stake.Institute
It is that the middle part of Larsen steel sheet pile back plate is cut into two half-unit by Larsen steel sheet pile to state horizontal locking board, takes one of them partly
Portion and obtain；The cutting end face of the horizontal locking board is vertically fixed on the middle part of Larsen steel sheet pile back plate.
Further, the compensation linkage includes flower basket bolt, two steel wire ropes and two pieces of clamps, two steel wires
One end of rope is connected with the adjusting screw outer end at flower basket bolt both ends respectively, and the other end of two steel wire ropes connects with clamp respectively
Connect, one piece of clamp is stuck on the upper end termination of steel-pipe pile, and another piece of clamp is stuck between two adjacent horizontal braced walls
In the middle part of one section of longitudinal braced wall on the back plate of Larsen steel sheet pile.
Further, the clamp is in flute profile, and the notch of the flute profile is downward, and the horizontal edge of flute profile upper end is provided with connecting hole,
The vertical edge of flute profile both sides is respectively separated provided with several lateral threaded holes, the notch of clamp be stuck in steel-pipe pile upper end termination and
On in the middle part of the back plate of corresponding Larsen steel sheet pile, clamp is separately fixed at steel pipe by the several screws for being screwed into clamp both sides vertical edge
On in the middle part of the upper end termination of stake and the back plate of corresponding Larsen steel sheet pile；One end of two steel wire ropes is each passed through corresponding clamp
Connecting hole, and be connected thereto, the other end of two steel wire ropes is connected with the both ends of flower basket bolt respectively.
A kind of installation method of pattern foundation pit supporting structure Larsen steel sheet pile system, comprises the following steps：
1）More Larsen steel sheet piles are sunk into underground and form longitudinal braced wall
On the inside of design of foundation pit sideline, more of inner side Larsen steel sheet pile is sunk into underground one by one, makes the phase of Larsen steel sheet pile both sides
Neighbour's lock carves conjunction and forms longitudinal braced wall each other, and several end to end longitudinal braced walls surround the pattern foundation pit supporting structure wall of closing；
2）Constructed with the horizontal braced wall that longitudinal braced wall is vertically connected
The spacing of horizontal braced wall is determined according to geological condition, a plurality of interval is sunk to one by one away from foundation ditch side in longitudinal braced wall
Set and be transversely to the machine direction the horizontal braced wall of braced wall, the side lock of Larsen steel sheet pile one of every horizontal braced wall one end termination
The horizontal locking board of three-dimensional junction steel plate stake corresponding with longitudinal braced wall is connected；
3）The steel pipe pile driving construction of back stabilization zone
The row steel-pipe pile parallel with longitudinal braced wall is sunk to as back stabilization zone on the outside of foundation ditch in longitudinal braced wall；
4）Compensation linkage is installed
In the stabilization zone of back, by the both ends of adjusting yoke respectively with steel-pipe pile termination and positioned at two adjacent horizontal braced walls
Between one section of longitudinal braced wall in the middle part of be fixedly connected, rotate the flower basket bolt in the middle part of compensation linkage, make flower basket bolt both ends
Tense wire rope respectively, so as to adjust the position of steel-pipe pile upper end；
5）The shaping of high-pressure rotary jet grouting pile
After determining range of grouting, intensity and pressure by design and result of the test, in the sawtooth of longitudinal braced wall and horizontal braced wall
Shape each recess difference prefabricated high-pressure rotary jet grouting pile of bored grouting, further strengthens anchoring effect, waterproof ability and impermeability,
Improve pattern foundation pit supporting structure stability；
6）Excavation pit
Slip casting is completed to reach excavation pit after design strength, and the skew settling amount of margin of foundation pit is monitored during excavation.
The present invention is interval with a plurality of horizontal supporting for being transversely to the machine direction braced wall in longitudinal braced wall away from foundation ditch side
Wall, the row steel-pipe pile back stabilization zone parallel with longitudinal braced wall, steel pipe are sunk on the outside of foundation ditch in longitudinal braced wall
Stake is fixedly connected with corresponding horizontal braced wall one end termination, instead of effect of the cumbersome anchor pole in support system of constructing.
Two inclined compensation linkages are symmetrical arranged between two adjacent horizontal braced walls, can effectively prevent twice from laterally propping up
Central region is bowed out under soil pressure effect between revetment.Present invention reduces construction period, reduces construction cost, using ground
Layer is wide, easy for construction, and cutting depth can be more than 3 meters of foundation ditch under the geological conditions of Broken rock mass loose media.
Advantages of the present invention and feature, it will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments, only provide as an example referring to the drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A-A section view rotation figures；
Fig. 3 is the structural representation of three-dimensional junction steel plate stake；
Fig. 4 is the scheme of installation of compensation linkage.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Fig. 1~Fig. 2, the present invention is included as longitudinal braced wall 1 on the inside of the sideline of foundation ditch 100, longitudinal braced wall 1
In the zigzag of side indent opposite side evagination, the zigzag is by the adjacent side lock 102 of more 10 liang of Larsen steel sheet piles
Conjunction is carved each other to form.In longitudinal braced wall 1 a plurality of horizontal branch for being transversely to the machine direction braced wall is interval with away from the side of foundation ditch 100
Revetment 2, longitudinal braced wall 1 are provided with back stabilization zone 3 away from the outside of foundation ditch 100, sunk in the back stabilization zone 3 row and
The parallel steel-pipe pile 31 of longitudinal braced wall 1, the steel-pipe pile 31 are fixedly connected with the corresponding horizontal one end termination of braced wall 2.It is horizontal
Identical with longitudinal braced wall 1 to the structure of braced wall 2, the three-dimensional connection Larsen steel sheet pile 20 that there are three faces to latch is disposed on vertical
Into braced wall 1, the Larsen steel sheet pile 10 of the horizontal other end termination of braced wall 2 is connected with three-dimensional junction steel plate stake 20.Laterally branch
The length of Larsen steel sheet pile 10 of revetment 2 determines according to design requirement, the Larsen steel sheet pile 10 of typically no less than longitudinal braced wall 1
Length, can increase length if necessary, and horizontal braced wall 2 instead of effect of the anchor pole in supporting construction.
As shown in figure 4, two inclined compensation linkages 4 are symmetrical arranged between two adjacent horizontal braced walls 2, its
Including 41, two steel wire ropes 42 of flower basket bolt and two pieces of clamps 43, one end of two steel wire ropes 42 respectively with 41 liang of flower basket bolt
The outer end of adjusting screw 411 connection at end, the other end of two steel wire ropes 42 are connected with clamp 43 respectively, and one piece of clamp 43 is stuck in steel
On the upper end termination of pile tube 31, another piece of clamp 43 is stuck in one section of longitudinal supporting between two adjacent horizontal braced walls 2
On the Larsen steel sheet pile back plate 101 at the middle part of wall 1.Clamp 43 is in flute profile, and the notch of flute profile is downward, the horizontal edge 431 of flute profile upper end
Connecting hole 432 is provided with, the vertical edge 433 of flute profile both sides is respectively separated to be distinguished provided with several lateral threaded holes 434, the notch of clamp 43
It is stuck on the upper end termination and the middle part of corresponding Larsen steel sheet pile back plate 101 of steel-pipe pile 31, is screwed into the both sides vertical edge 433 of clamp 43
Several screws 435 clamp 43 is separately fixed at the upper end termination of steel-pipe pile 31 and corresponding Larsen steel sheet pile back plate 101
On middle part.One end of two steel wire ropes 42 is each passed through the connecting hole 432 of corresponding clamp 43, and is connected thereto, two steel wire ropes
Both ends of 42 other ends respectively with flower basket bolt 41 be connected.Compensation linkage 4 is used for the position for adjusting the upper end of steel-pipe pile 31, if
There is relaxation in steel wire rope 42 or Larsen steel sheet pile top shifts, then can be by rotating 41 timely tense wire rope of flower basket bolt
42。
As shown in figure 1, in order to further strengthen anchoring effect, the supporting stability of foundation ditch 100 is improved, in back stabilization zone 3
Longitudinal braced wall 1 and the corresponding zigzag recess of horizontal braced wall 2 high-pressure rotary jet grouting pile 5, the note of high-pressure rotary jet grouting pile 5 are set respectively
Pulp material can play waterproof action according to stratum water content using the cement mortar slip casting that anti-permeability performance is excellent, hardened property is good.
As shown in figure 3, the middle part of back plate 201 of three-dimensional connection Larsen steel sheet pile 20 vertically extends horizontal locking board 202,
One side lock 102 of the horizontal other end termination Larsen steel sheet pile 10 of braced wall 2 is connected the horizontal lock of Larsen steel sheet pile 20 with three-dimensional
The upper side lock 203 of buckle 202 carves conjunction connection each other.For the ease of manufacture, horizontal locking board 202 is at Larsen steel sheet pile back
Larsen steel sheet pile 10 is cut into two half-unit by the middle part of plate 101, is taken one of half portion and is obtained.Horizontal locking board 202 is cut
Cut node face vertical welding is fixed on the middle part of Larsen steel sheet pile back plate 101, and processing and fabricating is very convenient.
A kind of installation method of pattern foundation pit supporting structure Larsen steel sheet pile system, comprises the following steps：
1）More Larsen steel sheet piles 10 are sunk into underground and form longitudinal braced wall
As shown in Fig. 2 more Larsen steel sheet piles 10 are sunk into underground, Larsen steel plate one by one on the inside of the design sideline of foundation ditch 100
10 bottoms of stake are successively through element pad soil layer 110, mud 120, silt soil strata 130, farinose argillic horizon 140, into boulder bed
150, the adjacent lock of the both sides of Larsen steel sheet pile 10 carves conjunction and forms longitudinal braced wall 1, several end to end longitudinal supportings each other
Wall 1 surrounds the pattern foundation pit supporting structure wall of closing.
2）Constructed with the horizontal braced wall 2 that longitudinal braced wall is vertically connected
The spacing of horizontal braced wall 2 is determined according to geological condition, is sunk to one by one away from the side of foundation ditch 100 in longitudinal braced wall 1 more
Bar is arranged at intervals and is transversely to the machine direction the horizontal braced wall 2 of braced wall 1, the Larsen steel plate of every horizontal one end termination of braced wall 2
The upside of the horizontal locking board 202 of 10 1 side locks 102 of a stake three-dimensional junction steel plate stake 20 corresponding with longitudinal braced wall 2
Lock 203 is connected.
3）The steel-pipe pile 31 of back stabilization zone 3 is constructed
The row steel-pipe pile 31 parallel with longitudinal braced wall is sunk on the outside of foundation ditch in longitudinal braced wall 1 as back to reinforce
Area 3.
4）Compensation linkage 4 is installed
In back stabilization zone 3, by the both ends of adjusting yoke 4 respectively with the termination of steel-pipe pile 31 and positioned at two adjacent horizontal branch
One section of longitudinal middle part of braced wall 1 between revetment 2 is fixedly connected, and is rotated the gaily decorated basket 412 at the middle part of compensation linkage 4, is made gaily decorated basket spiral shell
Tense wire rope 42 is distinguished at the both ends of bolt 41, so as to adjust the position of the upper end of steel-pipe pile 31.
5）The shaping of high-pressure rotary jet grouting pile 5
After determining range of grouting, intensity and pressure by design and result of the test, in the saw of longitudinal braced wall 1 and horizontal braced wall 2
Tooth form each recess difference prefabricated high-pressure rotary jet grouting pile 5 of bored grouting, further strengthens anchoring effect, waterproof ability and impervious energy
Power, improve pattern foundation pit supporting structure stability.
6）Excavation pit 100
Slip casting is completed to reach excavation pit 100 after design strength, and the skew sedimentation of foundation ditch frontside edge is monitored during excavation
Amount.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (6)
1. a kind of pattern foundation pit supporting structure Larsen steel sheet pile system, including longitudinal braced wall as foundation ditch sideline, longitudinal braced wall
In the zigzag of side indent opposite side evagination, the zigzag carves conjunction each other by the adjacent lock of more Larsen steel sheet pile both sides
Form；It is characterized in that：In longitudinal braced wall a plurality of horizontal branch for being transversely to the machine direction braced wall is interval with away from foundation ditch side
Revetment, longitudinal braced wall are provided with back stabilization zone away from the outside of foundation ditch, and a row is sunk in the back stabilization zone and is propped up with longitudinal direction
The parallel steel-pipe pile of revetment, the steel-pipe pile are fixedly connected with corresponding horizontal braced wall one end termination；Horizontal supporting wall structure
Identical with longitudinal braced wall, the three-dimensional connection Larsen steel sheet pile with three faces lock is disposed in longitudinal braced wall, laterally
The Larsen steel sheet pile of braced wall other end termination is connected with three-dimensional junction steel plate stake；It is right between two adjacent horizontal braced walls
Claim setting two inclined compensation linkages, the both ends of the compensation linkage are respectively with steel-pipe pile termination and adjacent positioned at two
Horizontal braced wall between one section of longitudinal braced wall in the middle part of be fixedly connected；Longitudinal braced wall and horizontal stroke on the inside of foundation ditch sideline
To the corresponding zigzag recess of braced wall, high-pressure rotary jet grouting pile is set respectively.
2. pattern foundation pit supporting structure Larsen steel sheet pile system as claimed in claim 1, it is characterised in that：The three-dimensional junction steel plate stake
Horizontal locking board, the side lock and three-dimensional of horizontal braced wall other end termination Larsen steel sheet pile are vertically extended in the middle part of back plate
The upper side lock of the horizontal locking board of junction steel plate stake carves conjunction connection each other.
3. pattern foundation pit supporting structure Larsen steel sheet pile system as claimed in claim 2, it is characterised in that：The horizontal locking board is to draw
Larsen steel sheet pile is cut into two half-unit by the middle part of gloomy steel sheet pile back plate, is taken one of half portion and is obtained；The laterally lock
The cutting end face of buckle is vertically fixed on the middle part of Larsen steel sheet pile back plate.
4. pattern foundation pit supporting structure Larsen steel sheet pile system as claimed in claim 1, it is characterised in that：The compensation linkage includes flower
Basket bolt, two steel wire ropes and two pieces of clamps, one end of two steel wire ropes adjusting screw with flower basket bolt both ends respectively
Outer end is connected, and the other end of two steel wire ropes is connected with clamp respectively, and one piece of clamp is stuck on the upper end termination of steel-pipe pile, another
Block clamp is stuck in the middle part of one section of longitudinal braced wall between two adjacent horizontal braced walls on the back plate of Larsen steel sheet pile.
5. pattern foundation pit supporting structure Larsen steel sheet pile system as claimed in claim 4, it is characterised in that：The clamp is in flute profile, described
The notch of flute profile is downward, and the horizontal edge of flute profile upper end is provided with connecting hole, and the vertical edge of flute profile both sides is respectively separated provided with several horizontal spiral shells
Pit, the notch of clamp are stuck in the middle part of the upper end termination of steel-pipe pile and the back plate of corresponding Larsen steel sheet pile, are screwed into
Clamp is separately fixed at the upper end termination of steel-pipe pile and the back of the body of corresponding Larsen steel sheet pile by several screws of clamp both sides vertical edge
On in the middle part of portion's plate；One end of two steel wire ropes is each passed through the connecting hole of corresponding clamp, and is connected thereto, two steel wire ropes it is another
One end is connected with the both ends of flower basket bolt respectively.
A kind of 6. installation method of pattern foundation pit supporting structure Larsen steel sheet pile system as claimed in claim 1, it is characterised in that：Including with
Lower step：
More Larsen steel sheet piles are sunk into underground and form longitudinal braced wall
On the inside of the design sideline of foundation ditch, more Larsen steel sheet piles are sunk into underground one by one, make the adjacent of Larsen steel sheet pile both sides
Lock carves conjunction and forms longitudinal braced wall each other, and several end to end longitudinal braced walls surround the pattern foundation pit supporting structure wall of closing；
Constructed with the horizontal braced wall that longitudinal braced wall is vertically connected
The spacing of horizontal braced wall is determined according to geological condition, a plurality of interval is sunk to one by one away from foundation ditch side in longitudinal braced wall
Set and be transversely to the machine direction the horizontal braced wall of braced wall, the side lock of Larsen steel sheet pile one of every horizontal braced wall one end termination
The horizontal locking board of three-dimensional junction steel plate stake corresponding with longitudinal braced wall is connected；
3）The steel pipe pile driving construction of back stabilization zone
The row steel-pipe pile parallel with longitudinal braced wall is sunk to as back stabilization zone on the outside of foundation ditch in longitudinal braced wall；
4）Compensation linkage is installed
In the stabilization zone of back, by the both ends of adjusting yoke respectively with steel-pipe pile termination and positioned at two adjacent horizontal braced walls
Between one section of longitudinal braced wall in the middle part of be fixedly connected, rotate the gaily decorated basket in the middle part of compensation linkage, distinguish flower basket bolt both ends
Tense wire rope, so as to adjust the position of steel-pipe pile upper end；
5）The shaping of high-pressure rotary jet grouting pile
After determining range of grouting, intensity and pressure by design and result of the test, in the sawtooth of longitudinal braced wall and horizontal braced wall
Shape each recess difference prefabricated high-pressure rotary jet grouting pile of bored grouting, further strengthens anchoring effect, waterproof ability and impermeability,
Improve pattern foundation pit supporting structure stability；
6）Excavation pit
Slip casting is completed to reach excavation pit after design strength, and the skew settling amount of margin of foundation pit is monitored during excavation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017091.XA CN107675713B (en) | 2017-10-26 | 2017-10-26 | Pattern foundation pit supporting structure Larsen steel sheet pile system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017091.XA CN107675713B (en) | 2017-10-26 | 2017-10-26 | Pattern foundation pit supporting structure Larsen steel sheet pile system and construction method |
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| CN107675713A true CN107675713A (en) | 2018-02-09 |
| CN107675713B CN107675713B (en) | 2019-06-25 |
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| CN107524152A (en) * | 2017-10-13 | 2017-12-29 | 中建八局第三建设有限公司 | A kind of foundation pit enclosure structure stress bringing device and its construction method |
| CN108867645A (en) * | 2018-09-04 | 2018-11-23 | 江苏山水环境建设集团股份有限公司 | Nearby Structure Larsen steel sheet pile pulls out construction method in pattern foundation pit supporting structure |
| CN109610468A (en) * | 2018-11-29 | 2019-04-12 | 中建城市建设发展有限公司 | A kind of combination unit and its application method of steel diaphragm wall |
| CN111997434A (en) * | 2020-07-31 | 2020-11-27 | 国网上海市电力公司 | Transformer substation enclosure construction method |
| CN113818431A (en) * | 2021-10-21 | 2021-12-21 | 东南大学溧阳研究院 | High-pressure jet grouting pile optimized construction method for protecting adjacent building |
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| CN108867645A (en) * | 2018-09-04 | 2018-11-23 | 江苏山水环境建设集团股份有限公司 | Nearby Structure Larsen steel sheet pile pulls out construction method in pattern foundation pit supporting structure |
| CN109610468A (en) * | 2018-11-29 | 2019-04-12 | 中建城市建设发展有限公司 | A kind of combination unit and its application method of steel diaphragm wall |
| CN111997434A (en) * | 2020-07-31 | 2020-11-27 | 国网上海市电力公司 | Transformer substation enclosure construction method |
| CN113818431A (en) * | 2021-10-21 | 2021-12-21 | 东南大学溧阳研究院 | High-pressure jet grouting pile optimized construction method for protecting adjacent building |
| CN113818431B (en) * | 2021-10-21 | 2022-09-09 | 东南大学溧阳研究院 | High-pressure jet grouting pile optimized construction method for protecting adjacent building |
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