CN108180026B - Method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment - Google Patents
Method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment Download PDFInfo
- Publication number
- CN108180026B CN108180026B CN201810169909.8A CN201810169909A CN108180026B CN 108180026 B CN108180026 B CN 108180026B CN 201810169909 A CN201810169909 A CN 201810169909A CN 108180026 B CN108180026 B CN 108180026B
- Authority
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- China
- Prior art keywords
- tunnel
- constant
- hydraulic device
- circular rigid
- resistance hydraulic
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/48—Chocks or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The present invention proposes a kind of tunnel according to the thought of pressure conversion and presses method for transformation, uniform, constant active pressure is converted by the unbalanced pressure of roadway surrounding rock to act in Circular Rigid supporting construction, this method is mainly used for solving the support issues of permanent openings under non-uniform traffic environment, practicability is stronger, preferable supporting effect can be obtained, the method for protecting support in tunnel under non-uniform traffic environment is enriched.
Description
Technical field
The invention belongs to roadway surrounding rock control fields, and in particular to tunnel conversion is pressed under a kind of non-uniform traffic environment
Method for protecting support.
Background technique
During tunnelling, unbalanced stresses field is inevitably encountered, prop is in non-and presses stress, and tunnel is easy
Strong asymmetrical deformation is generated, asymmetrical deformation pressure first makes tunnel generate the deformation failure of part, and subsequent other regions are opened
Begin to destroy, the support system damage inactivation in last entire tunnel, traditional support technology is difficult to meet tunnel under the geological conditions
The demand of support engineering, roadway support issues under this condition are a technical problems in current roadway support field, especially
Supporting for permanent openings.Technical staff starts with from the angle for increasing support density and intensity mostly at scene at present, but because
The heterogeneity of roadway surrounding rock pressure cannot more efficiently solve the problem, and fall of ground accident occurs again and again, cause huge
Huge economic loss and casualties.
Summary of the invention
The purpose of the present invention is the statuses poor for laneway support method under the environment of current unbalanced stresses field, provide one
Method for protecting support is pressed in tunnel conversion under kind non-uniform traffic environment.
To achieve the above object, one of technical solution of the present invention, tunnel conversion is equal under a kind of non-uniform traffic environment
Press method for protecting support, comprising the following steps:
(1) original tunnel is excavated, and arranges interim support system in tunnel；
(2) arrange that Circular Rigid supporting construction, the Circular Rigid supporting construction are Circular Rigid in tunnel central location
Bracket, Circular Rigid bracket are assembled by arc steelframe；Arrange that constant-resistance hydraulic device, constant-resistance hydraulic device are evenly arranged in circle
On the outside of shape rigid support, the both ends of constant-resistance hydraulic device are connect with Circular Rigid bracket and roadway surrounding rock respectively；The hydraulic dress of constant-resistance
When setting installation, installation constant-resistance hydraulic device first is helped in roadway floor and two, constant-resistance hydraulic device is finally installed at the top of tunnel；
(3) fluid injection is boosted, and the cylinder of each group constant-resistance hydraulic device is increased, and adjust the pressure of constant-resistance hydraulic device relief valve
Force value is consistent, makes it have certain setting load, is tightly supported between Circular Rigid bracket and roadway surrounding rock；
(4) several crossbeams are uniformly set up between adjacent Circular Rigid bracket, and are laid with pipeline and are formed new operation
Space, pipeline are located at cross rail inner, and crossbeam is evenly distributed on the outside of pipeline；
(5) it the step of segmentation installation, repetition above-mentioned (2) ~ (4), pushes ahead.
Preferably, the constant-resistance hydraulic device is 2 ~ 5 grades of hydraulic props.
The both ends of the constant-resistance hydraulic device are equipped with matched column shoes, bolumn cap, one end of mounting post shoes and roadway surrounding rock
Connection, the one end for installing bolumn cap is connect with Circular Rigid bracket.
The two of the technical solution adopted by the present invention, method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment,
The following steps are included:
(1) original tunnel is excavated, interim support system is arranged in tunnel；
(2) the step-by-step arrangement rigid cylinder in original tunnel, and enclosing wall is established at each section of rigid cylinder both ends；
(3) liquid filling is injected into the surrounded enclosure space of enclosing wall of rigid cylinder, tunnel and rigid cylinder both ends
Object, and adjust the pressure value of relief valve on rigid cylinder barrel；
(4) the step of section construction, repetition above-mentioned (2) ~ (3), extend cartridge type rigid structure forward.
The liquid charges are that coefficient of viscosity is greater than 90mm2/ s, pollution-free, pumpable, antistatic, fire-retardant liquid material
Material.
The beneficial effect comprise that: tunnel conversion is equal under a kind of non-uniform traffic environment proposed by the invention
Constant-resistance, which can be effectively performed, in pressure method for protecting support allows pressure, allows original tunnel to have certain deformation, to reduce roadway surrounding rock pair
The pressure of Circular Rigid supporting construction increases the stability of supporting construction；A kind of non-uniform traffic ring proposed by the invention
Conversion pressure method for protecting support in tunnel can convert uniform pressure for unbalanced pressure from surrounding rock and act on Circular Rigid under border
In supporting construction, Circular Rigid supporting construction is made full use of most to stablize this characteristic under the conditions of pressing；Proposed by the invention
Construction method is section construction, separately installed, greatly reduces construction and installation difficulty, reduces the difficulty of tunnel transport.It fills
Divide using Circular Rigid supporting construction in the equal most stable of feature of press strip part, realizes that support efficiency is best.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the supporting construction used in the embodiment of the present invention 1；
Fig. 2 is the diagrammatic cross-section of the supporting construction of embodiment 1；
The constant-resistance of supporting construction, which allows, when Fig. 3 is tunnel asymmetrical deformation in embodiment 1 presses schematic diagram；
Fig. 4 is the structural schematic diagram of arc steelframe in embodiment 1；
Fig. 5 is the structural schematic diagram of the supporting construction of the use of embodiment 2；
Fig. 6 is the diagrammatic cross-section of the supporting construction of embodiment 2；
The constant-resistance of supporting construction, which allows, when Fig. 7 is tunnel asymmetrical deformation in embodiment 2 presses schematic diagram.
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Embodiment 1
As shown in Figs 1-4, method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment, comprising the following steps:
(1) original tunnel is excavated, and arranges interim support system in tunnel 1；
(2) arrange that Circular Rigid supporting construction, the Circular Rigid supporting construction are Circular Rigid in 1 central location of tunnel
Bracket 2, Circular Rigid bracket 2 are assembled by connecting plate 9 by arc steelframe 11；Arrange constant-resistance hydraulic device 3, constant-resistance is hydraulic
Device 3 is evenly arranged in the outside of Circular Rigid bracket 2, the both ends of constant-resistance hydraulic device 3 respectively with Circular Rigid bracket 2 and tunnel
Country rock connection；When constant-resistance hydraulic device 3 is installed, installation constant-resistance hydraulic device first is helped in roadway floor and two, is finally pushed up in tunnel
Portion is installed by constant-resistance hydraulic device；
(3) fluid injection is boosted, and the cylinder of each group constant-resistance hydraulic device 3 is increased, and adjust constant-resistance hydraulic device relief valve
Pressure value is consistent, makes it have certain setting load, is tightly supported between Circular Rigid bracket 2 and roadway surrounding rock；
(4) several crossbeams 4 are uniformly set up between adjacent Circular Rigid bracket 2, and are laid with pipeline 5 and are formed new work
Industry space, pipeline 5 are located at cross rail inner, and crossbeam 4 is evenly distributed on the outside of pipeline 5；
(5) it the step of segmentation installation, repetition above-mentioned (2) ~ (4), pushes ahead.
The constant-resistance hydraulic device is 2 ~ 5 grades of hydraulic props.
The both ends of the constant-resistance hydraulic device are equipped with matched column shoes, bolumn cap, one end of mounting post shoes and roadway surrounding rock
Connection, the one end for installing bolumn cap is connect with Circular Rigid bracket.
Embodiment 2
As illustrated in figs. 5-7, method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment, comprising the following steps:
(1) original tunnel is excavated, interim support system is arranged in tunnel 1；
(2) the step-by-step arrangement rigid cylinder 6 in original tunnel, and enclosing wall 12 is established at each section of 6 both ends of rigid cylinder；
(3) liquid filling is injected into the surrounded enclosure space of enclosing wall of rigid cylinder, tunnel and rigid cylinder both ends
Object 8, and adjust the pressure value of relief valve 7 on rigid cylinder barrel；
(4) the step of section construction, repetition above-mentioned (2) ~ (3), extend cartridge type rigid structure forward.
The liquid charges are that coefficient of viscosity is greater than 90mm2/ s, pollution-free, pumpable, antistatic, fire-retardant liquid material
Material.
The present invention proposes a kind of tunnel according to the thought of pressure conversion and presses method for transformation, by the imbalance of roadway surrounding rock
Pressure is converted into uniform, constant active pressure and acts in Circular Rigid supporting construction, and it is equal by no means that this method is mainly used for solution
The support issues of permanent openings under even stress field environment, practicability is stronger, can obtain preferable supporting effect, enriches non-equal
The method for protecting support in tunnel under even stress field environment.
Claims (3)
1. method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment, it is characterised in that the following steps are included:
(1) original tunnel is excavated, and arranges interim support system in tunnel；
(2) arrange that Circular Rigid supporting construction, the Circular Rigid supporting construction are Circular Rigid bracket in tunnel central location,
Circular Rigid bracket is assembled by arc steelframe；Arrange that constant-resistance hydraulic device, constant-resistance hydraulic device are evenly arranged in round rigid
Property stent outer, the both ends of constant-resistance hydraulic device are connect with Circular Rigid bracket and roadway surrounding rock respectively；Constant-resistance hydraulic device peace
When dress, installation constant-resistance hydraulic device first is helped in roadway floor and two, constant-resistance hydraulic device is finally installed at the top of tunnel；
(3) fluid injection is boosted, and the cylinder of each group constant-resistance hydraulic device is increased, and adjust the pressure value of constant-resistance hydraulic device relief valve
Unanimously, certain setting load is made it have, is tightly supported between Circular Rigid bracket and roadway surrounding rock；
(4) several crossbeams are uniformly set up between adjacent Circular Rigid bracket, and are laid with pipeline and are formed new working space,
Pipeline is located at cross rail inner, and crossbeam is evenly distributed on the outside of pipeline；
(5) it the step of segmentation installation, repetition above-mentioned (2) ~ (4), pushes ahead.
2. method for protecting support is pressed in tunnel conversion under non-uniform traffic environment as described in claim 1, which is characterized in that the perseverance
The both ends of blocking solution pressure device are equipped with matched column shoes, bolumn cap, and one end of mounting post shoes is connect with roadway surrounding rock, install bolumn cap
One end is connect with Circular Rigid bracket.
3. method for protecting support is pressed in tunnel conversion under non-uniform traffic environment as described in claim 1, which is characterized in that the perseverance
Blocking solution press fitting is set to 2 ~ 5 grades of hydraulic props.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169909.8A CN108180026B (en) | 2018-03-01 | 2018-03-01 | Method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810169909.8A CN108180026B (en) | 2018-03-01 | 2018-03-01 | Method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108180026A CN108180026A (en) | 2018-06-19 |
| CN108180026B true CN108180026B (en) | 2019-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810169909.8A Expired - Fee Related CN108180026B (en) | 2018-03-01 | 2018-03-01 | Method for protecting support is pressed in tunnel conversion under a kind of non-uniform traffic environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180026B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387379B (en) * | 2022-07-28 | 2023-07-04 | 中铁隧道局集团有限公司 | Support structure for prefabricated arc-shaped component and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280684A (en) * | 2008-05-12 | 2008-10-08 | 淮南矿业(集团)有限责任公司 | Goaf surrounding rock around gob-side supporting method under three soft geological condition |
| CN201292852Y (en) * | 2008-12-03 | 2009-08-19 | 义马煤业(集团)有限责任公司 | Coal mine tunnel structure |
| CN102182482A (en) * | 2011-04-25 | 2011-09-14 | 义马煤业集团股份有限公司跃进煤矿 | Impact-resistant combined anti-pressure supporting system |
| CN105178979A (en) * | 2015-08-28 | 2015-12-23 | 中铁二十五局集团第四工程有限公司 | Supporting structure of tunnel in bias salt cavity environment and construction method of supporting structure |
| CN205936657U (en) * | 2016-08-27 | 2017-02-08 | 赤峰柴胡栏子黄金矿业有限公司 | Scalable removal of whole hydraulic pressure lining car |
| CN106593467A (en) * | 2016-11-09 | 2017-04-26 | 大唐陇东能源有限公司 | Supporting method for underground soft rock roadway of coal mine |
-
2018
- 2018-03-01 CN CN201810169909.8A patent/CN108180026B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280684A (en) * | 2008-05-12 | 2008-10-08 | 淮南矿业(集团)有限责任公司 | Goaf surrounding rock around gob-side supporting method under three soft geological condition |
| CN201292852Y (en) * | 2008-12-03 | 2009-08-19 | 义马煤业(集团)有限责任公司 | Coal mine tunnel structure |
| CN102182482A (en) * | 2011-04-25 | 2011-09-14 | 义马煤业集团股份有限公司跃进煤矿 | Impact-resistant combined anti-pressure supporting system |
| CN105178979A (en) * | 2015-08-28 | 2015-12-23 | 中铁二十五局集团第四工程有限公司 | Supporting structure of tunnel in bias salt cavity environment and construction method of supporting structure |
| CN205936657U (en) * | 2016-08-27 | 2017-02-08 | 赤峰柴胡栏子黄金矿业有限公司 | Scalable removal of whole hydraulic pressure lining car |
| CN106593467A (en) * | 2016-11-09 | 2017-04-26 | 大唐陇东能源有限公司 | Supporting method for underground soft rock roadway of coal mine |
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| Publication number | Publication date |
|---|---|
| CN108180026A (en) | 2018-06-19 |
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Granted publication date: 20190312 |