CN107059881A - The foundation pit supporting method that a kind of campshed is combined with steel sheet pile - Google Patents
The foundation pit supporting method that a kind of campshed is combined with steel sheet pile Download PDFInfo
- Publication number
- CN107059881A CN107059881A CN201710236901.4A CN201710236901A CN107059881A CN 107059881 A CN107059881 A CN 107059881A CN 201710236901 A CN201710236901 A CN 201710236901A CN 107059881 A CN107059881 A CN 107059881A
- Authority
- CN
- China
- Prior art keywords
- steel sheet
- sheet pile
- pile
- foundation pit
- combined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention discloses the foundation pit supporting method that a kind of campshed is combined with steel sheet pile, some bored concrete piles as campshed, are then installed steel sheet pile by this method between adjacent two bored concrete pile, have organically combined the characteristics of bored concrete pile supporting intensity is high to be easily installed dismounting with steel sheet pile；Positioning pipe is set in the symmetrical side of each bored concrete pile, is easy to guiding steel sheet pile to squeeze into and pull out, substantially reduces construction period, because steel sheet pile does not throw soil and pile body into directly, the design also effectively prevent steel sheet pile abrasion；For synthesis, this method water-stagnating effect is good, quick construction, and economy and efficiency of construction are all guaranteed.This is invented for pattern foundation pit supporting structure field.
Description
Technical field
The present invention relates to pattern foundation pit supporting structure field, the foundation pit supporting method that more particularly to a kind of campshed is combined with steel sheet pile.
Background technology
In existing foundation pit supporting method, in the case where excavation of foundation pit depth is little, it is general using campshed add rotary churning pile or
Mixing pile supporting, and steel sheet pile supporting is used merely.
Traditional campshed adds rotary churning pile or mixing pile progress sealing supporting to there is following defect, and 1, rotary churning pile and mixing pile are applied
Work speed is slow, has a strong impact on construction speed；2nd, rotary churning pile and mixing pile be using the dry spray of cement or wet shot, all produce dust from flying,
Pollute environment；3rd, rotary churning pile and mixing pile can not be reused, and cause waste of material；4th, after the completion of rotary churning pile and mixing pile construction
Must all have could carry out earth excavation after certain age, directly result in construction speed slowly, be unfavorable for the propulsion of engineering.
There is following defect in steel sheet pile supporting, 1, steel sheet pile using after repeatedly, easily occur drainage at fore shaft, jeopardize
Deep pit monitor；2nd, the foundation pit deformation of steel sheet pile supporting is larger, big to surrounding environment influence；3rd, surface subsidence after steel sheet pile is extracted
Greatly, easily there is crack, jeopardize periphery road surface, building and structures；4th, steel sheet pile supporting is more than 10m in excavation of foundation pit depth
When, adaptability is substantially reduced；5th, when steel sheet pile supporting carries out Underground Construction, the exterior wall of underground structure must use match plate pattern
Plate is constructed, and is stepped up its investment.
The content of the invention
It is an object of the invention to provide the foundation ditch that the campshed of a kind of combination campshed and steel sheet pile advantage is combined with steel sheet pile
Method for protecting support.
The technical solution used in the present invention is：
The foundation pit supporting method that a kind of campshed is combined with steel sheet pile, comprises the following steps：
A, measure and determine bored concrete pile and the construction location of steel sheet pile, and some pore-formings spaced apart of constructing；
B, making steel reinforcement cage, then symmetric position is respectively mounted two positioning pipes on the outside of the left and right of the steel reinforcement cage；
C, some steel reinforcement cages are put into each pore-forming, keep the central axis of each positioning pipe to be in same perpendicular
On；
D, conduit is laid, by conduit toward pouring into a mould concrete in the pore-forming, and complete the construction of each bored concrete pile；
E, the pile crown of each bored concrete pile is excavated to exposing each positioning pipe；
F, steel sheet pile of being constructed between adjacent two positioning pipe in the different steel reinforcement cages, finally make each steel sheet pile connection phase
Adjacent two bored concrete piles form complete unit bulk head water retaining；
G, progress excavation of foundation pit, and underground structure of constructing；
Each steel sheet pile is extracted after h, foundation ditch backfill, terminates construction.
As the improvement of such scheme, step b steel reinforcement cage first places some cage bars vertically, each cage bar is surrounded in circle
Shape, then wales each cage bar in outside with stirrup spiral.
As the improvement of such scheme, step b two positioning pipes are separately mounted to the two ends of steel reinforcement cage diametrically.
As the improvement of such scheme, step b each positioning pipe is spaced apart along bus provided with a row or two row in a pre-installation
Pilot hole.
As the improvement of such scheme, each positioning pipe keeps the central axis of each positioning pipe and each when mounted in step c
The center of pilot hole is in same perpendicular.
As the improvement of such scheme, step e each positioning pipe sealed bottom, and butter is filled before steel reinforcement cage is made
Or butter mixes wood chip.
As the improvement of such scheme, the cross section of step f each steel sheet pile is U-shaped or linear.
As the improvement of such scheme, step g constructed at once after excavation of foundation pit waist rail support.
Beneficial effects of the present invention：The foundation pit supporting method that this campshed is combined with steel sheet pile regard some bored concrete piles as row
Stake, then installs steel sheet pile between adjacent two bored concrete pile, has organically combined bored concrete pile supporting intensity height and steel sheet pile is easy to peace
The characteristics of assembly and disassembly are unloaded；Positioning pipe is set in the symmetrical side of each bored concrete pile, is easy to guiding steel sheet pile to squeeze into and pull out, greatly shortens
Construction period, because steel sheet pile does not throw soil and pile body into directly, the design also effectively prevent steel sheet pile abrasion；It is comprehensive next
Say, this method water-stagnating effect is good, quick construction, economy and efficiency of construction are all guaranteed.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the supporting floor map of the present embodiment；
Fig. 2 is the steel reinforcement cage front view of the present embodiment；
Fig. 3 is the steel reinforcement cage top view of the present embodiment；
Fig. 4 is the positioning pipe front view of the present embodiment.
Embodiment
A kind of 1~Fig. 4 of reference picture, the foundation pit supporting method that the present invention combines for campshed with steel sheet pile, comprises the following steps：
A, the construction location for measuring and determining bored concrete pile 1 and steel sheet pile 2, and some pore-formings spaced apart of constructing；
B, making steel reinforcement cage 3, then symmetric position is respectively mounted two positioning pipes 4 on the outside of the left and right of steel reinforcement cage 3；
C, some above-mentioned steel reinforcement cages 3 are put into each pore-forming, keep some positioning pipes central axis be in it is same vertical flat
On face；
D, placement conduit, by conduit toward cast concrete 5 in the pore-forming, and complete the construction of each bored concrete pile 1；
E, the pile crown of each bored concrete pile 1 is excavated to exposing each positioning pipe 4；
F, steel sheet pile 2 of being constructed between adjacent two positioning pipe 4 in different steel reinforcement cages 3, finally make each connection of steel sheet pile 2 phase
Adjacent two bored concrete piles 1 form complete unit bulk head water retaining；
G, progress excavation of foundation pit, and underground structure of constructing；
Some steel sheet piles 2 are extracted after h, foundation ditch backfill, terminate construction.
In step a, arrangement spacing, diameter of each bored concrete pile 1 and steel sheet pile 2 etc. are calculated according to engineering practice and determined.
The foundation pit supporting method that this campshed is combined with steel sheet pile as campshed, then fills some bored concrete piles 1 adjacent two
Installation steel sheet pile 2 between stake 1 is noted, the characteristics of supporting intensity of bored concrete pile 1 is high to be easily installed dismounting with steel sheet pile 2 has been organically combined；
Positioning pipe 4 is set in the symmetrical side of each bored concrete pile 1, is easy to guiding steel sheet pile 2 to squeeze into and pull out, construction week is substantially reduced
Phase, because steel sheet pile 2 does not throw soil and pile body into directly, the design also effectively prevent steel sheet pile 2 and wear and tear；, should for synthesis
Method water-stagnating effect is good, quick construction, and economy and efficiency of construction are all guaranteed.
Referring in particular to Fig. 2, as preferred embodiment, step b steel reinforcement cage 3 includes some vertical place and around being in
The cage bar 31 of circle and the stirrup 32 that each cage bar 31 is waled from outside.Stirrup 32 rises in the shape of a spiral enwinds each cage bar 31, so
Afterwards the whole steel reinforcement cage 3 of fixation with steel wire is bound in the crossover location of each cage bar 31 and stirrup 32.
Reference picture 3, as preferred embodiment, step b two positioning pipes 4 are separately mounted to steel reinforcement cage 3 diametrically
At two ends, i.e. left and right sides lie farthest away.Positioning pipe 4 is PVC material, and then each positioning pipe 4 is fixed on steel reinforcement cage 3 by knot
On.In the present embodiment, the diameter of the positioning pipe 4 of steel reinforcement cage 3 and two is equal to or slightly less than the diameter of pore-forming, when concrete 5 has been irrigated
Into, the left and right sides of bored concrete pile 1 is embedded in equivalent to two positioning pipes 4, and the presence of two positioning pipes 4 has the left and right sides of bored concrete pile 1
It is easy to squeeze into steel sheet pile 2 at one intensity extremely weak thin-walled.
Reference picture 4, as preferred embodiment, step b each positioning pipe 4 is provided with from top to bottom along bus in a pre-installation
One row or two row pilot hole 41 spaced apart.What the design further reduced steel sheet pile 2 squeezes into difficulty, because each pilot hole 41 is perpendicular
Directly along lineal layout, moreover it is possible to guide steel sheet pile 2 vertically to insert between two bored concrete piles 1.
As preferred embodiment, in step c each positioning pipe 4 keep when mounted each positioning pipe 4 central axis and
The center of each pilot hole 41 is in same perpendicular, meanwhile, the central axis of each positioning pipe 4 and each bored concrete pile 1 is also at
Same perpendicular；Correspondingly, each pilot hole 41 is located remotely from the side of cage bar 31, so that each pilot hole 41 is also at this
On perpendicular.
As preferred embodiment, the sealed bottom of step e each positioning pipe 4, and filled before steel reinforcement cage 3 is made
Butter or butter are easy to each steel sheet pile 2 to keep lubrication and steel sheet pile 2 to keep sealing effectiveness after having constructed when squeezing into wood chip.
As preferred embodiment, the cross section of step f each steel sheet pile 2 is U-shaped or linear.When each steel sheet pile 2
Cross section when being U-shaped, U-shaped opening is towards on the outside of foundation ditch；Steel sheet pile 2 also has bending with the junction of both sides positioning pipe 4,
It is easy to steel sheet pile 2 to hook the positioning pipe 4 of both sides naturally.
As preferred embodiment, above-mentioned bending belongs to one kind of crotch, and its cross section is U-shaped.
As preferred embodiment, step g constructs waist rail support at once after excavation of foundation pit, is then tied again under construction ground
Structure.
For branch, this method contrast campshed supporting and the combination technique and steel sheet pile supporting knot of rotary churning pile/mixing pile
Structure, has following advantage：
Solve the problem of rotary churning pile/cement soil mixing pile setting rate is slow；
The problem of solving dust from flying during construction rotary churning pile/mixing pile construction, pollution environment；
Solve rotary churning pile/mixing pile can not recycling cause waste of material the problem of；
Solving wait rotary churning pile/mixing pile age causes the problem of construction speed is slow；
Solve in steel sheet pile supporting and easily drainage occur, the problem of jeopardizing deep pit monitor；
The deformation of steel sheet pile supporting foundation pit is solved larger, the problem of larger on surrounding enviroment influence；
Solve after the extraction of steel sheet pile supporting Steel Sheet Pile, surface subsidence is larger, crack easily occurs, jeopardizes periphery road surface, builds
The problem of building thing and building；
Solve the problem of steel sheet pile supporting adaptability is low；
When solving steel sheet pile supporting progress Underground Construction, the exterior wall of underground structure must be constructed using match plate, plus
The problem of big input.
Certainly, the design is created and is not limited to above-mentioned embodiment, and the combination of the various embodiments described above different characteristic also may be used
To reach good effect.Those skilled in the art can also make equivalent change on the premise of without prejudice to spirit of the invention
Shape or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (8)
1. the foundation pit supporting method that a kind of campshed is combined with steel sheet pile, it is characterised in that comprise the following steps：
A. measure and determine bored concrete pile（1）And steel sheet pile（2）Construction location, and some pore-formings spaced apart of constructing；
B. steel reinforcement cage is made（3）, then in the steel reinforcement cage（3）Left and right on the outside of symmetric position be respectively mounted two positioning pipes（4）；
C. by some steel reinforcement cages（3）It is put into each pore-forming, keeps each positioning pipe（4）Central axis be in it is same
On perpendicular；
D. conduit is laid, by the conduit toward pouring into a mould concrete in the pore-forming（5）, and complete each bored concrete pile（1）Construction；
E. each bored concrete pile is excavated（1）Pile crown to exposing each positioning pipe（4）；
F. in the different steel reinforcement cages（3）Adjacent two positioning pipe（4）Between construct steel sheet pile（2）, finally make each steel plate
Stake（2）Connect adjacent two bored concrete pile（1）Form complete unit bulk head water retaining；
G. excavation of foundation pit, and underground structure of constructing are carried out；
H. by each steel sheet pile after foundation ditch backfill（2）Extract, terminate construction.
2. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step b
Steel reinforcement cage（3）First some cage bars are placed vertically（31）, make each cage bar（31）Around rounded, then in outside stirrup（32）
Spiral wales each cage bar（31）.
3. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step b
Two positioning pipes（4）It is separately mounted to steel reinforcement cage（3）Two ends diametrically.
4. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step b
Each positioning pipe（4）In a pre-installation along bus provided with a row or two row pilot hole spaced apart（41）.
5. the foundation pit supporting method that campshed according to claim 4 is combined with steel sheet pile, it is characterised in that：The step c
In each positioning pipe（4）Each positioning pipe is kept when mounted（4）Central axis and each pilot hole（41）Center be in
Same perpendicular.
6. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step e
Each positioning pipe（4）Sealed bottom, and making steel reinforcement cage（3）Butter is filled before or butter mixes wood chip.
7. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step f
Each steel sheet pile（2）Cross section be U-shaped or linear.
8. the foundation pit supporting method that campshed according to claim 1 is combined with steel sheet pile, it is characterised in that：The step g
Waist rail of being constructed at once after excavation of foundation pit is supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236901.4A CN107059881B (en) | 2017-04-12 | 2017-04-12 | A kind of foundation pit supporting method that campshed is combined with steel sheet pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236901.4A CN107059881B (en) | 2017-04-12 | 2017-04-12 | A kind of foundation pit supporting method that campshed is combined with steel sheet pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107059881A true CN107059881A (en) | 2017-08-18 |
| CN107059881B CN107059881B (en) | 2019-03-08 |
Family
ID=59601823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236901.4A Active CN107059881B (en) | 2017-04-12 | 2017-04-12 | A kind of foundation pit supporting method that campshed is combined with steel sheet pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107059881B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343071A (en) * | 2018-03-19 | 2018-07-31 | 南京市测绘勘察研究院股份有限公司 | A kind of foundation pit supporting construction and construction method of steel sheet pile combined deposited pile |
| CN108532588A (en) * | 2018-04-21 | 2018-09-14 | 宋伟友 | A kind of way of sealing board wall |
| CN108589705A (en) * | 2018-04-25 | 2018-09-28 | 李相峰 | Casing cast-in-place concrete pile |
| CN108894211A (en) * | 2018-06-15 | 2018-11-27 | 徐秉凯 | A kind of wall scheme processed of Y-piece mould |
| CN108951661A (en) * | 2018-08-31 | 2018-12-07 | 江苏东合南岩土科技股份有限公司 | The construction method of double cambered surface piling bars, underground support structure and underground support structure |
| CN110984169A (en) * | 2019-11-13 | 2020-04-10 | 中冶天工集团有限公司 | Protective net used between cast-in-place pile piles and installation method thereof |
| CN114150696A (en) * | 2021-12-03 | 2022-03-08 | 华能清能通榆电力有限公司 | Cast-in-situ bored pile and steel sheet pile combined cylindrical foundation structure and construction method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08311864A (en) * | 1995-05-22 | 1996-11-26 | Shimizu Corp | Earth retaining wall and construction method therefor |
| CN1235226A (en) * | 1999-04-30 | 1999-11-17 | 中国第一冶金建设公司技术开发公司 | Method for protecting support of foundation ditch by mud jacking for retaining and water inhibiting and apparatus for mud jacking |
| JP2001164562A (en) * | 1999-12-08 | 2001-06-19 | Kajima Corp | Construction method of plate-like preceeding shore strut |
| CN200999342Y (en) * | 2006-11-24 | 2008-01-02 | 江苏东大特种基础工程有限公司 | Prefabricated pile composite supporting panel |
| CN102116030A (en) * | 2011-01-17 | 2011-07-06 | 东南大学 | Combined bracing structure for foundation pit and construction method thereof |
| CN202359564U (en) * | 2011-11-24 | 2012-08-01 | 东南大学 | Arch steel sheet pile supporting structure |
| CN103924602A (en) * | 2014-04-30 | 2014-07-16 | 冯诚 | Deep soft soil foundation pit construction method |
| CN205502024U (en) * | 2016-04-01 | 2016-08-24 | 江苏建筑职业技术学院 | Arch combination envelope that can partially retrieve |
| CN205742214U (en) * | 2016-05-10 | 2016-11-30 | 中国建筑股份有限公司 | The structural protective system of churning between a kind of T-shaped stake associating stake |
-
2017
- 2017-04-12 CN CN201710236901.4A patent/CN107059881B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08311864A (en) * | 1995-05-22 | 1996-11-26 | Shimizu Corp | Earth retaining wall and construction method therefor |
| CN1235226A (en) * | 1999-04-30 | 1999-11-17 | 中国第一冶金建设公司技术开发公司 | Method for protecting support of foundation ditch by mud jacking for retaining and water inhibiting and apparatus for mud jacking |
| JP2001164562A (en) * | 1999-12-08 | 2001-06-19 | Kajima Corp | Construction method of plate-like preceeding shore strut |
| CN200999342Y (en) * | 2006-11-24 | 2008-01-02 | 江苏东大特种基础工程有限公司 | Prefabricated pile composite supporting panel |
| CN102116030A (en) * | 2011-01-17 | 2011-07-06 | 东南大学 | Combined bracing structure for foundation pit and construction method thereof |
| CN202359564U (en) * | 2011-11-24 | 2012-08-01 | 东南大学 | Arch steel sheet pile supporting structure |
| CN103924602A (en) * | 2014-04-30 | 2014-07-16 | 冯诚 | Deep soft soil foundation pit construction method |
| CN205502024U (en) * | 2016-04-01 | 2016-08-24 | 江苏建筑职业技术学院 | Arch combination envelope that can partially retrieve |
| CN205742214U (en) * | 2016-05-10 | 2016-11-30 | 中国建筑股份有限公司 | The structural protective system of churning between a kind of T-shaped stake associating stake |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343071A (en) * | 2018-03-19 | 2018-07-31 | 南京市测绘勘察研究院股份有限公司 | A kind of foundation pit supporting construction and construction method of steel sheet pile combined deposited pile |
| CN108532588A (en) * | 2018-04-21 | 2018-09-14 | 宋伟友 | A kind of way of sealing board wall |
| CN108589705A (en) * | 2018-04-25 | 2018-09-28 | 李相峰 | Casing cast-in-place concrete pile |
| CN108894211A (en) * | 2018-06-15 | 2018-11-27 | 徐秉凯 | A kind of wall scheme processed of Y-piece mould |
| CN108951661A (en) * | 2018-08-31 | 2018-12-07 | 江苏东合南岩土科技股份有限公司 | The construction method of double cambered surface piling bars, underground support structure and underground support structure |
| CN108951661B (en) * | 2018-08-31 | 2020-09-01 | 江苏东合南岩土科技股份有限公司 | Double-arc-surface steel pile, underground supporting structure and construction method of underground supporting structure |
| CN110984169A (en) * | 2019-11-13 | 2020-04-10 | 中冶天工集团有限公司 | Protective net used between cast-in-place pile piles and installation method thereof |
| CN114150696A (en) * | 2021-12-03 | 2022-03-08 | 华能清能通榆电力有限公司 | Cast-in-situ bored pile and steel sheet pile combined cylindrical foundation structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107059881B (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107059881A (en) | The foundation pit supporting method that a kind of campshed is combined with steel sheet pile | |
| CN106677787B (en) | Vertical shaft repairing and reinforcement structure and repairing and reinforcement construction method | |
| CN103526770B (en) | A kind of construction method of high antiseepage anti-floating pile raft structure | |
| CN103306289B (en) | Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof | |
| CN107905799B (en) | Reinforced structure of high-speed rail tunnel bottom water passing karst cave and construction method thereof | |
| CN104594361B (en) | A kind of I shape fender post and building enclosure also serve as the construction method of agent structure | |
| CN108193642B (en) | Revetment reinforcing facility and construction method thereof | |
| CN105544575B (en) | A kind of bottom concrete construction method under water of use steel truss reinforcement | |
| CN100510281C (en) | Semi-inverse construction method of super large diameter, ultra-burial depth storage pond | |
| CN104674863A (en) | Method for reinforcing existing municipal pipe gallery within deep foundation pit excavation range | |
| CN107268650A (en) | A kind of industrial swirling flow precipitates pool structure not drainage open caisson method | |
| CN107964976A (en) | Steel pipe-conversion steel platform tower crane top-down construction method | |
| CN105240018A (en) | Vertical shaft construction device and method | |
| CN107268634A (en) | Deep basal pit waist rail construction typified form system | |
| CN110106883A (en) | A kind of Real-time Feedback grouting method for correcting subway tunnel horizontal distortion | |
| CN206428707U (en) | A kind of integrated pile tube dado structure of pattern foundation pit supporting structure precipitation | |
| CN203594041U (en) | Piled raft structure with good resistance to seepage and buoyancy | |
| CN105040707B (en) | Combine the construction method of close pile deep foundation pit support building enclosure | |
| CN207553135U (en) | A kind of pipe gallery | |
| CN209066508U (en) | Cross the existing electric power piping lane protection structure of tunnel foundation pit | |
| CN106759264A (en) | One kind grouting pipe network and its construction method | |
| CN103410155B (en) | A kind of recyclable preposition assembling braced cuts structure and application process thereof | |
| CN110578329A (en) | device and method for controlling tunnel deformation by using cable anchors and ground anchoring beams | |
| CN105937248B (en) | Agent structure section construction and temporary plugging wall joint processing method | |
| CN115030731A (en) | Pilot tunnel construction method in cross tunnel engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shao Mengxin Inventor after: Kuang Qide Inventor after: Chang Xiaoting Inventor before: Shao Mengxin Inventor before: Kuang Qide |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |