CN107386029A - A kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building - Google Patents
A kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building Download PDFInfo
- Publication number
- CN107386029A CN107386029A CN201710756473.8A CN201710756473A CN107386029A CN 107386029 A CN107386029 A CN 107386029A CN 201710756473 A CN201710756473 A CN 201710756473A CN 107386029 A CN107386029 A CN 107386029A
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- China
- Prior art keywords
- roadbed
- bridge pier
- existing building
- railway
- jet grouting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
Abstract
The invention discloses a kind of high ferro bridge pier roadbed for protecting periphery existing building to isolate method for correcting error; it is before the Deviation Correction Construction of high ferro bridge pier; it is being longitudinally arranged by being set between the existing building and bridge pier roadbed positioned at High-speed Railway Bridges pier roadbed lateral shift side along railway and can prevent that caused stress is delivered to the first barrier knot on the ground of existing building during jet grouting pile construction, then realizes the Deviation Correction Construction to high ferro bridge pier using high-pressure rotary jet grouting pile.The present invention is simple in construction, easy to use, it between bridge pier roadbed and existing building by setting a row to prevent that caused stress is delivered to the barrier structure on the ground of existing building during jet grouting pile construction, efficiently avoid the damage of existing building ground caused by stress spread during Construction of High Pressure Jet Grouting Pile.
Description
Technical field
The present invention relates to high-speed railway subgrade defect treatment technology field, in particular to during high ferro bridge abutment correcting,
A kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building.
Background technology
At present, China Express Railway capital construction forms four vertical four horizontal general layouts.Wherein, the visitors such as Beijing-Shanghai, Beijing-Hongkong, Hang Fu
Fortune special line passes through the widely distributed coastal area of weak soil.It is small based on non-fragment orbit service life length, good endurance, maintenance load
The advantages that, China Express Railway largely uses non-fragment orbit.By substantial amounts of theoretical and case history research for many years, China's engineering
Technical staff is more deep to soft clay area ballastless track roadbed sedimentation understanding, and generally use composite foundation, pile tube+raft are hardened
Structure, pile slab structure etc. carry out foundation stabilization, ground is met strict demand of the ballastless track roadbed to settlement after construction.Due to nothing
Tiny fragments of stone, coal, etc. track bed transversely deforming research is less, and technical staff is still not deep enough to the understanding of roadbed transversely deforming.Due to unilateral heap
Carry, excavation of foundation pit or late maintaining repair the engineering activities such as asymmetric Construction and may cause soft clay area ballastless track roadbed horizontal
Transfinited to deformation, destroy the ride comfort of track structure, train will be caused to topple when serious.
Offseted to one side to solve this track bed, it is thus proposed that using high-pressure rotary jet grouting pile consolidate road side
Roadbed, and squeezing action is formed to roadbed side by high-pressure rotary jet grouting pile and forces track transverse shifting, complete correction process.
A kind of soft clay area that is used for is disclosed in Chinese invention patent CN103821039A specification and runs ballastless track of high-speed railway
Roadbed method for correcting error, this method deflection side roadbed on slot, then groove open interior construct high-pressure rotary jet grouting pile, pass through height
The thrust of pressure rotary-spraying stake promotes track bed to be moved to side, realizes the correction of roadbed.High-pressure rotary jet grouting pile will be revolved using rig
Preventing slurry injection pipe and shower nozzle, which bore, is placed in a bottom design altitude, obtains liquid stream by high-voltage generator the slurries prepared in advance
After huge energy, ejected from the nozzle high speed of slip casting tube edge, form the liquid stream of one energy height concentration, directly destroyed
The soil body, in course of injection, drilling rod is lifted in rotation, slurries is thoroughly mixed with the soil body, certain diameter is formed in soil
Column induration so that ground is reinforced.Construction Technique of High Pressure Revolving Spraying is ripe, especially suitable for soft soil roadbed settlement
The processing of skew, but because Construction of High Pressure Jet Grouting Pile is generally all to be sprayed centered on the axis in hole to surrounding, therefore for
The region on hole periphery can produce very strong extruding impetus, i.e. the stress of high-pressure rotary jet grouting pile can spread.When use this method pair
During the non-fragment orbit correction of high-speed railway, if construction area nearby has existing building, produced using Construction of High Pressure Jet Grouting Pile
After raw stress spread different degrees of destruction will be produced to the ground of existing building.And current rail high speed development, greatly
Most Along Railways have substantial amounts of existing building, therefore, how in the case where protecting existing building to railway ballastless
Track realizes that the problem of correction is badly in need of solving.
The content of the invention
Present invention aim to the high-pressure rotary jet grouting pile for the prior art for solving to mention in above-mentioned background technology in high ferro
The problem of destruction of periphery existing building is easily caused in bridge abutment correcting work progress, there is provided one kind protection periphery existing building
The high ferro bridge pier roadbed isolation method for correcting error of thing.
In order to solve the above technical problems, present invention employs the high ferro bridge pier road of such a protection periphery existing building
Base isolates method for correcting error, a kind of its high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building, including：Step
One, relative to high-speed railway bridge pier roadbed lateral shift side in opposite direction, stress relief structure is being set；Step 2, in place
Between the existing building and bridge pier roadbed of high-speed railway bridge pier roadbed lateral shift side set be longitudinally arranged along railway and
It can prevent that caused stress is delivered to the first barrier structure on the ground of existing building during jet grouting pile construction；Step
Three, high-pressure rotary jet grouting pile is set between the first barrier structure and bridge pier roadbed；What the high-pressure rotary jet grouting pile was longitudinally arranged along railway
Length is no more than length of first barrier structure along railway longitudinal direction；The depth of the high-pressure rotary jet grouting pile is not more than described first
The depth of barrier structure；Bridge pier roadbed is promoted to be answered to described using caused huge thrust during the Construction of High Pressure Jet Grouting Pile
Power eliminates the movement of structure side, so as to realize the correction to high-speed railway bridge pier roadbed；Step 3, in high-speed railway bridge pier roadbed
After the completion of Deviation Correction Construction, stress relief structure is backfilled to closely knit, the first barrier structure of extraction.
In a kind of preferred embodiment of the present invention, first barrier structure is the steel that a row is longitudinally arranged along railway
Sheet pile.
In a kind of preferred embodiment of the present invention, the steel sheet pile is provided at both ends with along railway lateral arrangement and court
Second barrier structure of railway side extension.
In a kind of preferred embodiment of the present invention, second barrier structure is to be arranged at the steel sheet pile both sides
Side steel sheet pile.
In a kind of preferred embodiment of the present invention, the steel sheet pile and the side steel sheet pile form U-shaped entirety
Structure, and the opening of its U-shaped is towards railway.
In a kind of preferred embodiment of the present invention, the stress relief structure is along the longitudinally disposed deformation of railway
Groove, the interior filling of deformation groove can prevent that deforming groove collapses, and the material of allowable strain groove deformation.
In a kind of preferred embodiment of the present invention, the width range of the deformation groove is 0.5m~2.0m, the change
The depth of shape groove is not less than 2.0m.
In a kind of preferred embodiment of the present invention, set in the region between the deformation groove and bridge pier roadbed multiple
The stress relief hole being longitudinally arranged along railway, the bottom of each stress relief hole extend downwardly, and below bridge pier roadbed
Soft stratum area, medium coarse sand or rubble are filled up in each stress relief hole.
In a kind of preferred embodiment of the present invention, the spacing of two neighboring stress relief hole is equal and spacing range is equal
For 1.0m~2.0m；The aperture of each stress relief hole is equal and pore diameter range is 127mm~148mm.
The invention also discloses a kind of high ferro bridge pier roadbed for protecting periphery existing building to isolate error-correction structure, and it includes
Bridge pier roadbed, bridge pier roadbed lateral shift direction identical side is provided with existing building, it is horizontal relative to bridge pier roadbed
The side opposite to offset direction sets stress relief structure；High pressure is provided between the bridge pier roadbed and the existing building
Rotary churning pile, being provided between the high-pressure rotary jet grouting pile and the existing building can the first barrier structure；The high-pressure rotary jet grouting pile edge
The length that railway is longitudinally arranged is no more than length of first barrier structure along railway longitudinal direction；The depth of the high-pressure rotary jet grouting pile
No more than the depth of first barrier structure.
The beneficial effects of the invention are as follows：The present invention is simple in construction, easy to use, and it passes through in bridge pier roadbed and existing building
A row is set to prevent that caused stress is delivered to the resistance on the ground of existing building during jet grouting pile construction between thing
Every structure, the damage of existing building ground caused by stress spread during Construction of High Pressure Jet Grouting Pile efficiently avoid；Carry
The high efficiency of bridge pier roadbed Deviation Correction Construction；Simultaneously the present invention by using steel sheet pile as barrier structure, can be effectively
The diffusion of stress during barrier high-pressure rotary jet grouting pile is applied, while facilitate the installation and dismounting of barrier structure；And in order that obtaining high
Caused stress, which is more concentrated, during pressure rotary-spraying pile driving construction is delivered on bridge pier roadbed, prevents stress along railway longitudinal diffusion,
Make the more concentration of stress transmission, steel sheet pile has been designed to U-shape structure by the present invention；In order to adapt to the steel plate with U-shape structure
Pilework designs, and the present invention has done the stress groove and stress relief hole of stress relief structure the planning of physical dimension, to reach
Can be most while caused stress during can eliminating Construction of High Pressure Jet Grouting Pile produces damage to the ground of existing building
Effectively realize the high ferro bridge abutment correcting of high-speed railway；It may be noted that above-mentioned data are not can be by the experiment of limited number of time
It can draw, but the empirical data drawn according to those skilled in the art according to theoretical and actual combination, only
On the premise of using above-mentioned data, the high ferro bridge pier roadbed isolation method for correcting error of protection periphery existing building of the invention is
Can most effectively it be implemented.
Brief description of the drawings
Fig. 1 is that a kind of high ferro bridge pier roadbed of protection periphery existing building of the embodiment of the present invention isolates method for correcting error
Cross-sectional structure schematic diagram；
Fig. 2 is that a kind of high ferro bridge pier roadbed of protection periphery existing building of the embodiment of the present invention isolates method for correcting error
Top view；
In figure：1-bridge pier roadbed；2-existing building；3-deformation groove；4-stress relief hole；5-the first barrier knot
Structure；6-the second barrier structure；7-high-pressure rotary jet grouting pile.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
The present invention carries out horizontal correction by the way of high-pressure rotary jet grouting pile to bridge pier roadbed 1, for the ease of bridge pier roadbed 1
Transverse shifting, the present embodiment are provided with stress relief structure (under being not limited in bridge pier roadbed 1 relative to the side of its lateral shift
The deformation slot structure in embodiment is stated, as long as can realize that the various structures of stress elimination function belong to the protection model of the present invention
Enclose).The stress relief structure of the present embodiment includes deformation groove 3, as shown in Fig. 1~2, longitudinal direction point of the deformation groove 3 along high-speed railway
Cloth, deformation caused by soil during for eliminating bridge pier 1 transverse shifting of roadbed.
The width range of deformation groove 3 is 0.5m~2.0m, can be carried out according to the offset of bridge pier roadbed 1 during practical application
Consider.The depth of deformation groove 3 is not less than 2.0m, and same needs are considered according to the depth of bridge pier roadbed 1.
In addition, stress relief structure also includes the stress relief hole 4 between deformation groove 3 and bridge pier roadbed 1, this implementation
Example stress relief hole 4 of the row along the longitudinally spaced arrangement of railway, high-pressure rotary jet grouting pile between deformation groove 3 and bridge pier roadbed 1 are being applied
After caused lateral thrust is applied on release aperture 4 and deformation groove 3 during work, pass through stress relief hole 4 and deformation groove 3
On space discharge, provide enough spaces for the transverse shifting of bridge pier roadbed 1.
The present embodiment most has in technical scheme, and the spacing of two neighboring stress relief hole 4 is equal and spacing range is
1.0m~2.0m, the aperture of each stress relief hole 4 is equal and pore diameter range is 127mm~148mm, can be with during actual use
It is adjusted correspondingly according to the situation at scene.
In order to protect the existing building 2 on railway periphery, the present embodiment passes through in bridge pier roadbed for the construction of high-pressure rotary jet grouting pile 7
Barrier structure is set to prevent the transmission of stress between 1 and existing building 2.The barrier structure of the present embodiment includes steel sheet pile group
Into the first barrier structure 5 and the second barrier structure 6, the first barrier structure 5 combines by plurality of steel plates stake inserting piling, along at a high speed
The genesis analysis of railway, it is arranged between bridge pier roadbed 1 and existing building 2, the first barrier structure 5 can be effectively by high pressure
The caused huge stress interception in constructing of rotary churning pile 7, avoids these stress from being protected to the ground of existing building 2
The safety of existing building 2.
In order to further intercept the transmission of stress, more collect also for caused thrust in making high-pressure rotary jet grouting pile 7 construct
It is delivered to middlely on bridge pier roadbed 1, the present embodiment is also provided at both ends with horizontal along high-speed railway in the longitudinal direction of the first barrier structure 5
Second barrier structure 6 of direction arrangement, the second barrier structure 6 and the interception structure completed of being constructed by steel sheet pile inserting piling.Second
The barrier structure 5 of barrier structure 6 and first forms U-shape structure of the U mouths towards bridge pier roadbed 1, revolves high pressure as shown in Fig. 2 concentrating
Caused thrust is sprayed in the work progress of stake 7 on bridge pier roadbed 1, forcing the transverse shifting of bridge pier roadbed 1 to complete correction.This reality
The steel sheet pile for applying example can be extracted after the completion of last construction from roadbed, is remained next use, so can farthest be saved
Material saving, reduce the cost of construction reformation.
Specifically implementation is：1st, when high-speed railway bridge pier roadbed 1, lateral shift occurs for warp-wise Along Railway side
When, deformation groove 3 is set in the opposite side of bridge pier roadbed 1, and filling can prevent that deforming groove collapses, and allows again in deformation groove 3
The material that groove 3 deforms is deformed, typically from high-quality hard foam, foamed material can effectively prevent that deforming groove 3 exists
Collapsed in extrusion process, multiple stress relief holes 4, Mei Geying are set in the region between deformation groove 3 and bridge pier roadbed 1
The bottom of power release aperture 4 extends downwardly, and through the soft stratum area of the lower section of bridge pier roadbed 1,4 is equal in each stress relief hole
Fill up medium coarse sand or rubble；
2nd, the region interior edge circuit occurred at lateral displacement between bridge pier roadbed 1 and existing building 2 is longitudinally inserted
Make a call to row's steel sheet pile and form the first barrier structure 5 that barrier stress is delivered on the ground of existing building 2, in the first barrier knot
Row steel sheet pile formation second barrier structure 6 of longitudinal both ends difference inserting piling one row of construction of structure 5 along high-speed railway transverse direction, first
The barrier structure 6 of barrier structure 5 and second forms U-shape structure of the U mouths towards bridge pier roadbed 1, then steel sheet pile and bridge pier roadbed 1 it
Between region internal drilling construct a row or multi-row high-pressure rotary jet grouting pile 7, huge pushed away using caused in the work progress of high-pressure rotary jet grouting pile 7
Dynamic bridge pier roadbed 1 is pushed to the movement of deformation groove side, so as to realize the correction to high-speed railway bridge pier roadbed 1, all high pressure rotations
The position of the construction of stake 7 is sprayed all in the U-shape structure that the first barrier structure 5 and the second barrier structure 6 are formed, and high-pressure rotary jet grouting pile 7 can
Multiple rows of to have, often row sets more；
3rd, it is after the completion of the Deviation Correction Construction of high-speed railway bridge pier roadbed 1, deformation groove 3 is closely knit with solidification material packing, typically
In the case of take out the hard foam originally placed, to deformation groove 3 in casting concrete by deform groove 3 close, extract steel plate
Stake remains next use, you can completes the whole process laterally rectified a deviation.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building, including：
Step 1, stress relief structure is being set relative to high-speed railway bridge pier roadbed (1) lateral shift side in opposite direction；
It is characterized in that：
Step 2, the existing building (2) positioned at High-speed Railway Bridges pier roadbed (1) lateral shift side and bridge pier roadbed (1) it
Between set being longitudinally arranged along railway and caused stress is delivered to existing building during can preventing jet grouting pile construction
The first barrier structure (5) on ground；
Step 3, high-pressure rotary jet grouting pile (7) is set between the first barrier structure (5) and bridge pier roadbed (1)；The high-pressure rotary jet grouting pile
(7) along the length that railway is longitudinally arranged no more than length of first barrier structure (5) along railway longitudinal direction；The high-pressure rotary-spray
The depth of stake (7) is not more than the depth of first barrier structure (5)；Using being produced in the high-pressure rotary jet grouting pile (7) work progress
Raw huge thrust promotes bridge pier roadbed (1) to be moved to the stress relief structure side, so as to realize to high-speed railway bridge pier
The correction of roadbed；
Step 3, after the completion of high-speed railway bridge pier roadbed Deviation Correction Construction, stress relief structure is backfilled to closely knit, the resistance of extraction first
Every structure (5).
2. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 1, its
It is characterised by：First barrier structure (5) is the steel sheet pile that a row is longitudinally arranged along railway.
3. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 2, its
It is characterised by：The steel sheet pile be provided at both ends with along railway lateral arrangement and towards railway side extension the second barrier structure (6).
4. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 3, its
It is characterised by：Second barrier structure (6) is the side steel sheet pile for being arranged at the steel sheet pile both sides.
5. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 4, its
It is characterised by：The steel sheet pile and the side steel sheet pile form a U-shaped overall structure, and the opening of its U-shaped is towards railway.
6. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 1, its
It is characterised by：The stress relief structure is that the interior filling of deformation groove (3) can along railway longitudinally disposed deformation groove (3)
Prevent that deforming groove collapses, and the material of allowable strain groove deformation.
7. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 6, its
It is characterised by：The width range of the deformation groove (3) is 0.5m~2.0m, and the depth of the deformation groove (3) is not less than 2.0m.
8. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 6, its
It is characterised by：Multiple stress being longitudinally arranged along railway are set to release in region between the deformation groove (3) and bridge pier roadbed (1)
Discharge hole (4), the bottom of each stress relief hole (4) extend downwardly, and the soft stratum area below bridge pier roadbed, Mei Geying
Medium coarse sand or rubble are filled up in power release aperture (4).
9. a kind of high ferro bridge pier roadbed isolation method for correcting error for protecting periphery existing building according to claim 8, its
It is characterised by：The spacing of two neighboring stress relief hole (4) is equal and spacing range is 1.0m~2.0m；Each stress release
The aperture in hole (4) is equal and pore diameter range is 127mm~148mm.
10. a kind of high ferro bridge pier roadbed isolation error-correction structure for protecting periphery existing building, including it is bridge pier roadbed (1), relative
In bridge pier roadbed (1) lateral shift direction identical side be provided with existing building (2) and relative to bridge pier roadbed (1) laterally partially
Move side in opposite direction and stress relief structure is set；Height is provided between the bridge pier roadbed (1) and the existing building (2)
Pressure rotary-spraying stake (7), it is characterised in that：Being provided between the high-pressure rotary jet grouting pile (7) and the existing building (2) can the first barrier
Structure (5)；The length that the high-pressure rotary jet grouting pile (7) is longitudinally arranged along railway is not more than first barrier structure (5) along railway
The length of longitudinal direction；The depth of the high-pressure rotary jet grouting pile (7) is not more than the depth of first barrier structure (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710756473.8A CN107386029B (en) | 2017-08-29 | 2017-08-29 | A kind of high-speed rail bridge pier roadbed isolation method for correcting error for protecting periphery existing building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756473.8A CN107386029B (en) | 2017-08-29 | 2017-08-29 | A kind of high-speed rail bridge pier roadbed isolation method for correcting error for protecting periphery existing building |
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| CN107386029A true CN107386029A (en) | 2017-11-24 |
| CN107386029B CN107386029B (en) | 2019-08-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158367A (en) * | 2019-04-12 | 2019-08-23 | 同济大学 | A kind of structure and deformation control method for helping the existing high-speed railway subgrade of width |
| CN110984257A (en) * | 2019-12-02 | 2020-04-10 | 中铁四院集团岩土工程有限责任公司 | Deviation rectifying method for cross-city-district rail transit |
| CN111648777A (en) * | 2020-05-25 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Horizontal deviation rectifying method for shield tunnel |
| CN111997062A (en) * | 2020-08-11 | 2020-11-27 | 中交二公局第四工程有限公司 | Method for treating support deviation of steel sheet pile in coastal soft soil deep foundation pit |
| CN112879561A (en) * | 2021-01-12 | 2021-06-01 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
| CN113832953A (en) * | 2021-10-25 | 2021-12-24 | 广州市设计院集团有限公司 | Method for reducing influence of vacuum preloading on surrounding environment |
| CN114575271A (en) * | 2022-03-02 | 2022-06-03 | 中铁四院集团工程建设有限责任公司 | Pier deviation rectifying method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158367A (en) * | 2019-04-12 | 2019-08-23 | 同济大学 | A kind of structure and deformation control method for helping the existing high-speed railway subgrade of width |
| CN110984257A (en) * | 2019-12-02 | 2020-04-10 | 中铁四院集团岩土工程有限责任公司 | Deviation rectifying method for cross-city-district rail transit |
| CN111648777A (en) * | 2020-05-25 | 2020-09-11 | 中铁四院集团岩土工程有限责任公司 | Horizontal deviation rectifying method for shield tunnel |
| CN111997062A (en) * | 2020-08-11 | 2020-11-27 | 中交二公局第四工程有限公司 | Method for treating support deviation of steel sheet pile in coastal soft soil deep foundation pit |
| CN112879561A (en) * | 2021-01-12 | 2021-06-01 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
| CN112879561B (en) * | 2021-01-12 | 2023-03-10 | 桂林理工大学 | Support structure suitable for vertical pressure vessel |
| CN113832953A (en) * | 2021-10-25 | 2021-12-24 | 广州市设计院集团有限公司 | Method for reducing influence of vacuum preloading on surrounding environment |
| CN114575271A (en) * | 2022-03-02 | 2022-06-03 | 中铁四院集团工程建设有限责任公司 | Pier deviation rectifying method |
| CN114575271B (en) * | 2022-03-02 | 2024-01-05 | 中铁四院集团工程建设有限责任公司 | Bridge pier deviation correcting method |
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| CN107386029B (en) | 2019-08-20 |
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