CN109973122A - A kind of tunnel reinforcement control method of wall rock loosening or soft rock large deformation - Google Patents
A kind of tunnel reinforcement control method of wall rock loosening or soft rock large deformation Download PDFInfo
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- CN109973122A CN109973122A CN201910398527.7A CN201910398527A CN109973122A CN 109973122 A CN109973122 A CN 109973122A CN 201910398527 A CN201910398527 A CN 201910398527A CN 109973122 A CN109973122 A CN 109973122A
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- rock
- tunnel
- large deformation
- plate
- reinforcing
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses the tunnel reinforcement control methods of a kind of wall rock loosening or soft rock large deformation, comprising the following steps: Step 1: applying preliminary bracing layer in country rock surrounding, senser element is arranged in branch sheath upper surface in the early stage, for monitoring surrouding rock stress or deformation state；Step 2: production is moveable to reinforce formwork system；It is determined according to the monitoring result of geological radar or senser element and has become just branch section wall rock loosening or large deformation range, mobile formwork system to section to be reinforced of reinforcing is reinforced.The present invention can have become first branch section since disturbance or prospective design are inconsiderate or perform large deformation region that is improper and generating and carry out sufficient second consolidation to tunnel, can give tunnel weakness section one comprehensive support force, ensure grouting and reinforcing quality；In addition, this method can play whole stabilization out of hole when being crushed shallow tunnel from ground secondary grouting for rich water, preventing country rock from collapsing influences construction operation and structure safety.
Description
Technical field
The present invention relates to tunnel tunnel surrounding reinforcement means under the conditions of a kind of complicated geological environment more particularly to a kind of country rocks
The tunnel reinforcement control method of loosening or soft rock large deformation.
Background technique
Current China's Tunnel Engineering is mostly used New Austrian Tunneling Method construction, construction point be performed as early as possible after tunnel excavation it is flexible
Combined bolting and shotcrete, so that supporting construction and country rock generate appropriate deformation jointly to give full play to country rock self-stability, two linings are being closed
In due course machine is performed again.Constructing tunnel such as is carried out on the changeable stratum of complicated geology, often due to early period, prospecting was not fine enough
Change cause to design and construct inconsiderate, construction is not in place or since extraneous uncontrollable disturbance factor such as closes on engineering explosion construction,
The factors such as heavy rain, typhoon and earthquake natural force lead to have become just branch section wall rock loosening, deterioration and generate large deformation.In this operating condition
Under, grouting and reinforcing construction such as is carried out in the case where not taking and adequately protecting measure, most probably since country rock is further disturbed
It is dynamic, just cause in hole convergent deformation excessive before injecting cement paste is not sufficiently hardened or vault sinking, or even lead to cave in accident, to hole
Interior operating personnel and structure cause to seriously threaten safely.Shallow Section in this way carries out grouting and reinforcing from earth's surface, also easily leads to tunnel
Top earth surface cracks, or even there is landslide phenomenon；May also occur collapsing and influencing structural stability in hole.It is how safe
Effectively to country rock progress second consolidation is deteriorated, strengthening quality is promoted, there is very important reality for current tunnel construction
Meaning.
Summary of the invention
The object of the present invention is to provide the tunnel reinforcement control method of a kind of wall rock loosening or soft rock large deformation, this method energy
Effective deformation controlling for rock surrounding gateways occurs slump, landslide, prominent mud water burst, seeps during tunnel operation when reducing constructing tunnel
The probability that the accidents such as leakage occur protects environment and personnel safety comprehensively.
For achieving the above object, the technical scheme is that the tunnel of a kind of wall rock loosening or soft rock large deformation
Strengthening control method, comprising the following steps:
Step 1: applying preliminary bracing layer in country rock surrounding, senser element is arranged in branch sheath upper surface in the early stage, encloses for monitoring
Rock stress or deformation state；
Step 2: production is moveable to reinforce formwork system；It is had become according to the determination of the monitoring result of geological radar or senser element
First branch section wall rock loosening or large deformation range, mobile formwork system to section to be reinforced of reinforcing are reinforced.
Further, in the step 1, preliminary bracing layer includes the steel mesh for being laid on country rock surrounding, and is injected in
Concrete layer on steel mesh.
Further, in the step 2, production and the reinforcement means of formwork system are reinforced are as follows:
Two parallel trolleies are set on tunnel bottom surface, and trolley is arranged along tunnel extending direction and trolley extends along tunnel
Direction is mobile；Vertical telescopic rod, and the hydraulic cylinder that the vertical telescopic rod of driving is flexible are installed respectively in trolley front and back end,
Vertical telescopic rod top end on same trolley installs elongated supporting beam；It is installed between supporting beam several with tunnel vault radian phase
Several elongated support rods are arranged in arched girder outer surface in matched arched girder, and top retaining-plate is laid on support rod；Outside trolley
Side is installed by retractable side wall retaining-plate；Injected hole is respectively set on top retaining-plate, side wall retaining-plate, obtains to give and enclose
The reinforcing formwork system of rock comprehensive support power；It is determined according to the monitoring result of geological radar or senser element and has become just branch section country rock
It loosens or large deformation range, mobile reinforcing formwork system to section to be reinforced, the supporting for adjusting top retaining-plate by hydraulic cylinder is high
Degree, makes it be adjacent to concrete layer, carries out grouting and reinforcing to loosening or large deformation country rock region using injected hole, forms grouting and reinforcing
The soil body；Reach stable state to country rock, supporting layer surface is laid with waterproof layer and removes reinforcing formwork system in the early stage, carries out two linings
Concrete and tunnel floor pour, and form closed force structure.
Further, the side wall retaining-plate, top retaining-plate are flexible steel plate.
Further, the side wall retaining-plate and trolley lateral surface are connected with reinforcing bar, reinforcing bar both ends respectively with trolley,
Side wall retaining-plate is hinged.
The beneficial effects of the present invention are:
1, the present invention tunnel can be had become first branch section due to disturbance or prospective design it is inconsiderate or perform it is improper and generate big change
Shape region carries out sufficient second consolidation, can give tunnel weakness section one comprehensive support force, ensures grouting and reinforcing quality；Separately
Outside, when being crushed shallow tunnel from ground secondary grouting for rich water, this method can play whole stabilization out of hole, prevent
Country rock, which collapses, influences construction operation and structure safety.
2, the present invention is suitable under various complex geological conditions causing the secondary of country rock deterioration to add due to various disturbance factors
Gu securely and reliably, control deformation effect is good, Tunnel Stability is good, and effect on environment is small, and construction risk is small, strong applicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in tunnel of the present invention；
Fig. 2 is that the present invention reinforces status diagram；
Fig. 3 is the assembling schematic diagram that the present invention reinforces formwork system；
Fig. 4 is the structural schematic diagram that the present invention reinforces formwork system.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
As shown in Figs 1-4, the tunnel reinforcement control method of a kind of wall rock loosening or soft rock large deformation, comprising the following steps:
Step 1: as shown in Figs. 1-2, applying preliminary bracing layer in country rock surrounding, sensor is arranged in branch sheath upper surface in the early stage
Part 3, for monitoring surrouding rock stress or deformation state.
Preliminary bracing layer includes the steel mesh 1 for being laid on country rock surrounding, and the concrete layer 2 being injected on steel mesh 1.
Step 2: as in Figure 2-4, making moveable reinforcing formwork system；According to geological radar or senser element 3
Monitoring result, which determines, has become just branch section wall rock loosening or large deformation range, and mobile formwork system to section to be reinforced of reinforcing is added
Gu.
The production for reinforcing formwork system and reinforcement means are as follows:
Two parallel trolleies 7 are set on tunnel bottom surface, and 7 car body of trolley is arranged along tunnel extending direction and trolley 7 is along tunnel
Extending direction is mobile；Vertical telescopic rod 8, and the liquid that the vertical telescopic rod 8 of driving is flexible are installed respectively in 7 car body front and back end of trolley
Elongated supporting beam 10 is installed on cylinder pressure 9,8 top of vertical telescopic rod on same trolley 7.
Several arched girders 11 to match with tunnel vault radian are installed between supporting beam 10, if being arranged in 11 outer surface of arched girder
Elongated support rod 12 is done, top retaining-plate 13 is laid on support rod 12；Pass through the adjustable top retaining-plate 13 of hydraulic cylinder 9
Supporting height, vertical supporting is carried out to country rock.
Retractable side wall retaining-plate 14 is installed on the outside of trolley 7；Side wall retaining-plate 14 and 7 lateral surface of trolley, which are connected with, to be added
Solid rod 16,16 both ends of reinforcing bar are hinged with trolley 7, side wall retaining-plate 14 respectively, and reinforcing bar 16 is rotated up, and can pack up side wall
Retaining-plate 14, on the contrary side wall retaining-plate 14 can be put down, lateral supporting is carried out to country rock.
Injected hole 15 is respectively set on top retaining-plate 13, side wall retaining-plate 14, obtains that country rock comprehensive support can be given
The reinforcing formwork system of power.
It is determined according to the monitoring result of geological radar or senser element 3 and has become just branch section wall rock loosening or large deformation range,
Mobile formwork system of reinforcing is adjusted the supporting height of top retaining-plate 13 by hydraulic cylinder 9, it is made to be adjacent to coagulation to section to be reinforced
Soil layer is loosened using 15 Duis of injected hole or large deformation country rock region carries out grouting and reinforcing, forms the grouting and reinforcing soil body 17.
Reach stable state to country rock, supporting layer surface is laid with waterproof layer 4 and removes reinforcing formwork system in the early stage, carries out
Two lining concrete 5 and tunnel floor 6 pour, and form closed force structure.
The side wall retaining-plate 14, top retaining-plate 13 are flexible steel plate.
The present invention tunnel can be had become first branch section due to disturbance or prospective design it is inconsiderate or perform it is improper and generate it is big
Deformed region carries out sufficient second consolidation, can give tunnel weakness section one comprehensive support force, ensures grouting and reinforcing quality；
In addition, this method can play whole stabilization out of hole when being crushed shallow tunnel from ground secondary grouting for rich water, prevent
Only country rock, which collapses, influences construction operation and structure safety.
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to the scope of the present invention.
Claims (5)
1. the tunnel reinforcement control method of a kind of wall rock loosening or soft rock large deformation, which comprises the following steps:
Step 1: applying preliminary bracing layer in country rock surrounding, senser element is arranged in branch sheath upper surface in the early stage, encloses for monitoring
Rock stress or deformation state；
Step 2: production is moveable to reinforce formwork system；It is had become according to the determination of the monitoring result of geological radar or senser element
First branch section wall rock loosening or large deformation range, mobile formwork system to section to be reinforced of reinforcing are reinforced.
2. the tunnel reinforcement control method of a kind of wall rock loosening as described in claim 1 or soft rock large deformation, which is characterized in that
In the step 1, preliminary bracing layer includes the steel mesh for being laid on country rock surrounding, and the concrete being injected on steel mesh
Layer.
3. the tunnel reinforcement control method of a kind of wall rock loosening as described in claim 1 or soft rock large deformation, which is characterized in that
In the step 2, production and the reinforcement means of formwork system are reinforced are as follows:
Two parallel trolleies are set on tunnel bottom surface, and trolley is arranged along tunnel extending direction and trolley extends along tunnel
Direction is mobile；Vertical telescopic rod, and the hydraulic cylinder that the vertical telescopic rod of driving is flexible are installed respectively in trolley front and back end,
Vertical telescopic rod top end on same trolley installs elongated supporting beam；It is installed between supporting beam several with tunnel vault radian phase
Several elongated support rods are arranged in arched girder outer surface in matched arched girder, and top retaining-plate is laid on support rod；Outside trolley
Side is installed by retractable side wall retaining-plate；Injected hole is respectively set on top retaining-plate, side wall retaining-plate, obtains to give and enclose
The reinforcing formwork system of rock comprehensive support power；It is determined according to the monitoring result of geological radar or senser element and has become just branch section country rock
It loosens or large deformation range, mobile reinforcing formwork system to section to be reinforced, the supporting for adjusting top retaining-plate by hydraulic cylinder is high
Degree, makes it be adjacent to concrete layer, carries out grouting and reinforcing to loosening or large deformation country rock region using injected hole, forms grouting and reinforcing
The soil body；Reach stable state to country rock, supporting layer surface is laid with waterproof layer and removes reinforcing formwork system in the early stage, carries out two linings
Concrete and tunnel floor pour, and form closed force structure.
4. the tunnel reinforcement control method of a kind of wall rock loosening as claimed in claim 3 or soft rock large deformation, which is characterized in that
The side wall retaining-plate, top retaining-plate are flexible steel plate.
5. the tunnel reinforcement control method of a kind of wall rock loosening as claimed in claim 3 or soft rock large deformation, which is characterized in that
The side wall retaining-plate and trolley lateral surface are connected with reinforcing bar, and reinforcing bar both ends are hinged with trolley, side wall retaining-plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398527.7A CN109973122A (en) | 2019-05-14 | 2019-05-14 | A kind of tunnel reinforcement control method of wall rock loosening or soft rock large deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398527.7A CN109973122A (en) | 2019-05-14 | 2019-05-14 | A kind of tunnel reinforcement control method of wall rock loosening or soft rock large deformation |
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| CN109973122A true CN109973122A (en) | 2019-07-05 |
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| CN201910398527.7A Pending CN109973122A (en) | 2019-05-14 | 2019-05-14 | A kind of tunnel reinforcement control method of wall rock loosening or soft rock large deformation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792478A (en) * | 2019-11-13 | 2020-02-14 | 中铁十局集团有限公司 | Omnibearing monitoring method for various mixed harmful gases in non-coal measure stratum tunnel |
| CN114060066A (en) * | 2021-11-25 | 2022-02-18 | 中铁第四勘察设计院集团有限公司 | Assembled stratum stress compensation servo steel frame system for controlling large deformation of tunnel |
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| CN107725068A (en) * | 2017-11-06 | 2018-02-23 | 山东建筑大学 | A kind of assembled supporting construction and its construction method based on outside steel arch-shelf and inner side concrete slab |
| CN109057820A (en) * | 2018-08-20 | 2018-12-21 | 福建工程学院 | A kind of rich water weak broken formation tunnel method for protecting support |
| CN109268033A (en) * | 2018-07-31 | 2019-01-25 | 杭州江润科技有限公司 | Pushing out ring arch reinforces Large Deformation Support and its construction method in soft rock tunnel regularization |
| CN109441479A (en) * | 2018-10-23 | 2019-03-08 | 北京市城远市政工程有限责任公司 | A kind of bored tunnel sump remedy method |
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2019
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196546A (en) * | 2014-08-06 | 2014-12-10 | 山东大学 | Treatment method for fault fracture zone collapse in tunnel construction process |
| CN205618172U (en) * | 2016-03-28 | 2016-10-05 | 兰州市轨道交通有限公司 | Tunnel country rock slip casting reinforcerment system |
| CN105863677A (en) * | 2016-04-12 | 2016-08-17 | 中国电建集团成都勘测设计研究院有限公司 | Strengthening method for preliminary tunnel support |
| CN205840897U (en) * | 2016-06-30 | 2016-12-28 | 北京城建七建设工程有限公司 | A kind of bored tunnel vault caves in emergency set |
| CN106089258A (en) * | 2016-08-24 | 2016-11-09 | 重庆工商职业学院 | Tunnel device and construction method |
| CN206830213U (en) * | 2017-04-13 | 2018-01-02 | 中铁二院工程集团有限责任公司 | A kind of soft rock tunnel anti-collapse monitoring device |
| CN107725068A (en) * | 2017-11-06 | 2018-02-23 | 山东建筑大学 | A kind of assembled supporting construction and its construction method based on outside steel arch-shelf and inner side concrete slab |
| CN109268033A (en) * | 2018-07-31 | 2019-01-25 | 杭州江润科技有限公司 | Pushing out ring arch reinforces Large Deformation Support and its construction method in soft rock tunnel regularization |
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| CN109441479A (en) * | 2018-10-23 | 2019-03-08 | 北京市城远市政工程有限责任公司 | A kind of bored tunnel sump remedy method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792478A (en) * | 2019-11-13 | 2020-02-14 | 中铁十局集团有限公司 | Omnibearing monitoring method for various mixed harmful gases in non-coal measure stratum tunnel |
| CN114060066A (en) * | 2021-11-25 | 2022-02-18 | 中铁第四勘察设计院集团有限公司 | Assembled stratum stress compensation servo steel frame system for controlling large deformation of tunnel |
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Application publication date: 20190705 |