CN107100655A - Weak surrounding rock locally changes the simple temporary support system of arch and its applies method - Google Patents
Weak surrounding rock locally changes the simple temporary support system of arch and its applies method Download PDFInfo
- Publication number
- CN107100655A CN107100655A CN201710400883.9A CN201710400883A CN107100655A CN 107100655 A CN107100655 A CN 107100655A CN 201710400883 A CN201710400883 A CN 201710400883A CN 107100655 A CN107100655 A CN 107100655A
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- Prior art keywords
- temporary support
- crossbeam
- row
- front side
- support crossbeam
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Links
- 239000011435 rock Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000007569 slipcasting Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The simple temporary support system of arch is locally changed the invention discloses a kind of weak surrounding rock and its applies method, the problem of whole Pin bow members of branch carry out easily occurring cave-in accident when changing arch processing at the beginning of solving tunnel.In local deformation bow member part（9）Front side vault at be provided with front side temporary support row's arc bow members（3）, in front side, the inner top side of temporary support row's arc bow members is provided with forward upper temporary support crossbeam（4）, forward upper temporary support diagonal brace is provided between forward upper temporary support crossbeam and front side temporary support row's arc bow members（5）, in front side, the inside lower end of temporary support row's arc bow members is provided with lower front temporary support crossbeam（6）, in lower front temporary support crossbeam and inverted arch（2）Between be provided with lower front temporary support diagonal brace（7）, in forward upper temporary support crossbeam（4）With upper back temporary support crossbeam（12）Between be provided with the longitudinally connected reinforcing bar in top（16）.Easy disassembling, it is reusable.
Description
Technical field
The present invention relates to a kind of support of tunnel system, more particularly to a kind of weak surrounding rock locally changes the simple temporary support system of arch
Unite and its apply method.
Background technology
During constructing tunnel, after the completion of being propped up at the beginning of weak surrounding rock, tunnel are run into sometimes, weak surrounding rock can be to first branch knot
Extruding is configured to, just branch bow member local subsidence and convergent deformation are often caused, when this occurs, it is necessary to after to deformation
The whole Pin bow members of first branch carry out changing arch processing, during arch is changed, due to needing to remove whole Pin bow members, former bow member can be changed
Distribution of force, easily occurs cave-in accident, while also existing, cost is high, investment is big, the cycle is long.
The content of the invention
The simple temporary support system of arch is locally changed the invention provides a kind of weak surrounding rock and its method is applied, and solves tunnel
The technical problem of cave-in accident easily occurs when the whole Pin bow members of branch change arch processing at the beginning of road.
The present invention is to solve above-mentioned technical problem by the following technical programs：
A kind of weak surrounding rock locally changes the simple temporary support system of arch, including Tunnel body, is provided with Tunnel body first
Lining cutting bow member and inverted arch, are formed with local deformation bow member part on first lining cutting bow member, before local deformation bow member part
Front side temporary support row's arc bow members are provided with the vault of side, before the inner top side of front side temporary support row's arc bow members is provided with
Upper lateral part temporary support crossbeam, is provided with front side between forward upper temporary support crossbeam and front side temporary support row's arc bow members
Top temporary support diagonal brace, in front side, the inside lower end of temporary support row's arc bow members is provided with lower front temporary support crossbeam,
Lower front temporary support diagonal brace is provided between lower front temporary support crossbeam and inverted arch；In local deformation bow member part
Rear side vault at be provided with rear side temporary support row's arc bow members, rear side temporary support row's arc bow members inner top side set
There is upper back temporary support crossbeam, be provided between upper back temporary support crossbeam and rear side temporary support row's arc bow members
Upper back temporary support diagonal brace, is provided with back lower temporary support horizontal in the inside lower end of rear side temporary support row's arc bow members
Beam, is provided with back lower temporary support diagonal brace between back lower temporary support crossbeam and inverted arch；It is interim in forward upper
The longitudinally connected reinforcing bar in top, lower front temporary support crossbeam are provided between support beam and upper back temporary support crossbeam
The longitudinally connected reinforcing bar in bottom is provided between back lower temporary support crossbeam.
Radial grouting anchor tube is provided with local deformation bow member part.
What a kind of weak surrounding rock locally changed the simple temporary support system of arch applies method, comprises the following steps：
The first step, set at the vault of the front side of local deformation bow member part on front side of temporary support row's arc bow members, face in front side
When support row's arc bow members inner top side set forward upper temporary support crossbeam, in forward upper temporary support crossbeam and front side
Forward upper temporary support diagonal brace is set between temporary support row's arc bow members, in the inside lower end of front side temporary support row's arc bow members
Lower front temporary support crossbeam is set, lower front temporary support is set between lower front temporary support crossbeam and inverted arch
Diagonal brace；Temporary support row's arc bow members on rear side of being set at the vault of the rear side of local deformation bow member part, in rear side temporary support
The inner top side of row's arc bow members sets upper back temporary support crossbeam, is propped up temporarily with rear side in upper back temporary support crossbeam
Setting upper back temporary support diagonal brace between row's arc bow members is supportted, after the inside lower end of rear side temporary support row's arc bow members is set
Side lower part temporary support crossbeam, sets back lower temporary support diagonal brace between back lower temporary support crossbeam and inverted arch；
The longitudinally connected reinforcing bar in top, lower front are set between forward upper temporary support crossbeam and upper back temporary support crossbeam
The longitudinally connected reinforcing bar in bottom is set between temporary support crossbeam and back lower temporary support crossbeam；
Second step, radial direction anchor tube is installed at local deformation bow member part and slip casting is carried out；、
3rd step, the local bow member of prefabricated replacement local deformation bow member part；
4th step, the local deformation bow member part of first lining cutting bow member removed by gas welding, by the replacement that the 3rd step is prefabricated
Local bow member is installed at the local deformation bow member part cut off；
5th step, after first lining arch frame is stable and no longer deforms, front side and rear side set by the dismounting first step
Temporary support support body.
The present invention replaces entirety to change arch by the local arch that changes, and reduces the construction risk changed in arch engineering, temporary support arch
Setting up for frame is simple, the effect that support collapses vault is served well, vault support and stull are using I-steel splicing
Into using steel plate and adding bolt connection at node, easy disassembling is reusable, reduces cost, has saved the duration.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of weak surrounding rock locally changes the simple temporary support system of arch, including Tunnel body 8, is provided with Tunnel body 8 just
Secondary lining cutting bow member 1 and inverted arch 2, are formed with local deformation bow member part 9 on first lining cutting bow member 1, in local deformation bow member portion
Front side temporary support row's arc bow members 3 are provided with the vault of points 9 front side, on the inner side of front side temporary support row's arc bow members 3
End is provided with forward upper temporary support crossbeam 4, in forward upper temporary support crossbeam 4 and front side temporary support row's arc bow members 3
Between be provided with forward upper temporary support diagonal brace 5, front side temporary support row's arc bow members 3 inside lower end be provided with front side under
Portion's temporary support crossbeam 6, is provided with lower front temporary support diagonal brace between lower front temporary support crossbeam 6 and inverted arch 2
7；Rear side temporary support row's arc bow members 11 are provided with the vault of the rear side of local deformation bow member part 9, are propped up temporarily in rear side
Support row's arc bow members 11 inner top side be provided with upper back temporary support crossbeam 12, upper back temporary support crossbeam 12 with
Upper back temporary support diagonal brace 13 is provided between rear side temporary support row's arc bow members 11, in rear side temporary support row's arc bow members
11 inside lower end is provided with back lower temporary support crossbeam 14, between back lower temporary support crossbeam 14 and inverted arch 2
It is provided with back lower temporary support diagonal brace 15；In forward upper temporary support crossbeam 4 and upper back temporary support crossbeam 12
Between be provided with the longitudinally connected reinforcing bar 16 in top, lower front temporary support crossbeam 6 and back lower temporary support crossbeam 14 it
Between be provided with the longitudinally connected reinforcing bar 17 in bottom.
Radial grouting anchor tube 10 is provided with local deformation bow member part 9.
What a kind of weak surrounding rock locally changed the simple temporary support system of arch applies method, comprises the following steps：
The first step, set at the vault of the front side of local deformation bow member part 9 on front side of temporary support row's arc bow members 3, in front side
The inner top side of temporary support row's arc bow members 3 sets forward upper temporary support crossbeam 4, in forward upper temporary support crossbeam 4
Forward upper temporary support diagonal brace 5, the temporary support row's arc bow members 3 in front side are set between front side temporary support row's arc bow members 3
Inside lower end lower front temporary support crossbeam 6 is set, before being set between lower front temporary support crossbeam 6 and inverted arch 2
Side lower part temporary support diagonal brace 7；Temporary support row's arc bow members on rear side of being set at the vault of the rear side of local deformation bow member part 9
11, upper back temporary support crossbeam 12 is set in the inner top side of rear side temporary support row's arc bow members 11, faced in upper back
When support beam 12 and rear side temporary support row's arc bow members 11 between upper back temporary support diagonal brace 13 is set, it is interim in rear side
Support the inside lower end of row's arc bow members 11 that back lower temporary support crossbeam 14 is set, back lower temporary support crossbeam 14 with
Back lower temporary support diagonal brace 15 is set between inverted arch 2；In forward upper temporary support crossbeam 4 and upper back temporary support
The longitudinally connected reinforcing bar 16 in top, lower front temporary support crossbeam 6 and back lower temporary support crossbeam are set between crossbeam 12
The longitudinally connected reinforcing bar 17 in bottom is set between 14；
Second step, radial direction anchor tube 10 is installed at local deformation bow member part 9 and slip casting is carried out；、
3rd step, the local bow member of prefabricated replacement local deformation bow member part 9；
4th step, the local deformation bow member part 9 of first lining cutting bow member 1 removed by gas welding, replaced the 3rd step is prefabricated
In generation, local bow member was installed at the local deformation bow member part 9 cut off；
5th step, after first lining arch frame 1 is stable and no longer deforms, front side and rear side set by the dismounting first step
Temporary support support body.
Claims (3)
1. a kind of weak surrounding rock locally changes the simple temporary support system of arch, including Tunnel body（8）, in Tunnel body（8 ）In set
It is equipped with first lining cutting bow member（1）And inverted arch（2）, in first lining cutting bow member（1）On be formed with local deformation bow member part（9）, its
It is characterised by, in local deformation bow member part（9）Front side vault at be provided with front side temporary support row's arc bow members（3）,
Front side temporary support row's arc bow members（3）Inner top side be provided with forward upper temporary support crossbeam（4）, it is interim in forward upper
Support beam（4）With front side temporary support row's arc bow members（3）Between be provided with forward upper temporary support diagonal brace（5）, in front side
Temporary support row's arc bow members（3）Inside lower end be provided with lower front temporary support crossbeam（6）, in lower front temporary support
Crossbeam（6）With inverted arch（2）Between be provided with lower front temporary support diagonal brace（7）；In local deformation bow member part（9）Rear side
Vault at be provided with rear side temporary support row's arc bow members（11）, in rear side temporary support row's arc bow members（11）Inner top side set
It is equipped with upper back temporary support crossbeam（12）, in upper back temporary support crossbeam（12）With rear side temporary support row's arc bow members
（11）Between be provided with upper back temporary support diagonal brace（13）, in rear side temporary support row's arc bow members（11）Inside lower end set
It is equipped with back lower temporary support crossbeam（14）, in back lower temporary support crossbeam（14）With inverted arch（2）Between be provided with after
Side lower part temporary support diagonal brace（15）；In forward upper temporary support crossbeam（4）With upper back temporary support crossbeam（12）It
Between be provided with the longitudinally connected reinforcing bar in top（16）, lower front temporary support crossbeam（6）With back lower temporary support crossbeam
（14）Between be provided with the longitudinally connected reinforcing bar in bottom（17）.
2. a kind of weak surrounding rock according to claim 1 locally changes the simple temporary support system of arch, it is characterised in that in office
Portion deformation bow member part（9）Place is provided with radial grouting anchor tube（10）.
3. what a kind of weak surrounding rock locally changed the simple temporary support system of arch applies method, comprise the following steps：
The first step, in local deformation bow member part（9）Front side vault at set front side temporary support row's arc bow members（3）,
Front side temporary support row's arc bow members（3）Inner top side set forward upper temporary support crossbeam（4）, propped up temporarily in forward upper
Support crossbeam（4）With front side temporary support row's arc bow members（3）Between set forward upper temporary support diagonal brace（5）, it is interim in front side
Support row's arc bow members（3）Inside lower end set lower front temporary support crossbeam（6）, in lower front temporary support crossbeam
（6）With inverted arch（2）Between set lower front temporary support diagonal brace（7）；In local deformation bow member part（9）Rear side vault
Place sets rear side temporary support row's arc bow members（11）, in rear side temporary support row's arc bow members（11）Inner top side set rear side on
Portion's temporary support crossbeam（12）, in upper back temporary support crossbeam（12）With rear side temporary support row's arc bow members（11）Between set
Postpone upper lateral part temporary support diagonal brace（13）, in rear side temporary support row's arc bow members（11）Inside lower end set back lower face
When support beam（14）, in back lower temporary support crossbeam（14）With inverted arch（2）Between set back lower temporary support it is oblique
Support（15）；In forward upper temporary support crossbeam（4）With upper back temporary support crossbeam（12）Between set top longitudinally connect
Connect reinforcing bar（16）, lower front temporary support crossbeam（6）With back lower temporary support crossbeam（14）Between set bottom longitudinal direction
Connect reinforcing bar（17）；
Second step, in local deformation bow member part（9）Place is installed by radial direction anchor tube（10）And carry out slip casting；、
3rd step, prefabricated replacement local deformation bow member part（9）Local bow member；
4th step, by first lining cutting bow member（1）Local deformation bow member part（9）Removed by gas welding, the 3rd step is prefabricated
The local bow member of replacement be installed to the local deformation bow member part cut off（9）Place；
5th step, when first lining arch frame（1）After stablizing and no longer deforming, the front side set by the first step and rear side are removed
Temporary support support body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400883.9A CN107100655A (en) | 2017-05-31 | 2017-05-31 | Weak surrounding rock locally changes the simple temporary support system of arch and its applies method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400883.9A CN107100655A (en) | 2017-05-31 | 2017-05-31 | Weak surrounding rock locally changes the simple temporary support system of arch and its applies method |
Publications (1)
| Publication Number | Publication Date |
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| CN107100655A true CN107100655A (en) | 2017-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710400883.9A Pending CN107100655A (en) | 2017-05-31 | 2017-05-31 | Weak surrounding rock locally changes the simple temporary support system of arch and its applies method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617071A (en) * | 2019-10-25 | 2019-12-27 | 中国水利水电第七工程局成都水电建设工程有限公司 | Tunnel expansion rock section arch-changing expanding excavation construction method |
| CN110966019A (en) * | 2019-11-22 | 2020-04-07 | 中国铁建重工集团股份有限公司 | Single-track railway tunnel half-side soft rock primary support deformation trident arch center treatment method |
| CN111779510A (en) * | 2020-08-05 | 2020-10-16 | 湖南科技大学 | Primary support invasion limit arch changing method for high liquid limit red clay surrounding rock tunnel |
| CN116446887A (en) * | 2023-06-20 | 2023-07-18 | 湖南省交通规划勘察设计院有限公司 | Tunnel construction method for existing partial collapse position of primary support section |
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| CN106640126A (en) * | 2016-10-11 | 2017-05-10 | 中铁隧道集团有限公司 | Processing method for extremely-high geostress soft rock tunnel arch wall lining cracking damage |
| CN207437103U (en) * | 2017-05-31 | 2018-06-01 | 中铁二十一局集团第六工程有限公司 | Weak surrounding rock locally changes the simple temporary support system of arch |
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| JP2005016167A (en) * | 2003-06-26 | 2005-01-20 | Shimizu Corp | Tunnel timbering structure and tunnel timbering method |
| CN102733827A (en) * | 2012-06-29 | 2012-10-17 | 湖南省交通规划勘察设计院 | Tunnel arch exchanging construction method and construction structure in tunnel arch exchanging construction |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617071A (en) * | 2019-10-25 | 2019-12-27 | 中国水利水电第七工程局成都水电建设工程有限公司 | Tunnel expansion rock section arch-changing expanding excavation construction method |
| CN110966019A (en) * | 2019-11-22 | 2020-04-07 | 中国铁建重工集团股份有限公司 | Single-track railway tunnel half-side soft rock primary support deformation trident arch center treatment method |
| CN110966019B (en) * | 2019-11-22 | 2021-07-02 | 中铁十八局集团有限公司 | Single-track railway tunnel half-side soft rock primary support deformation trident arch center treatment method |
| CN111779510A (en) * | 2020-08-05 | 2020-10-16 | 湖南科技大学 | Primary support invasion limit arch changing method for high liquid limit red clay surrounding rock tunnel |
| CN116446887A (en) * | 2023-06-20 | 2023-07-18 | 湖南省交通规划勘察设计院有限公司 | Tunnel construction method for existing partial collapse position of primary support section |
| CN116446887B (en) * | 2023-06-20 | 2023-09-01 | 湖南省交通规划勘察设计院有限公司 | Tunnel construction method for existing partial collapse position of primary support section |
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Application publication date: 20170829 |