CN110318761A - A kind of construction method controlling roadway deformation - Google Patents
A kind of construction method controlling roadway deformation Download PDFInfo
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- CN110318761A CN110318761A CN201910589034.1A CN201910589034A CN110318761A CN 110318761 A CN110318761 A CN 110318761A CN 201910589034 A CN201910589034 A CN 201910589034A CN 110318761 A CN110318761 A CN 110318761A
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 239000011435 rock Substances 0.000 claims abstract description 60
- 238000007569 slipcasting Methods 0.000 claims abstract description 25
- 238000004873 anchoring Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 230000008093 supporting effect Effects 0.000 claims description 24
- 238000005553 drilling Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
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- 239000000463 material Substances 0.000 claims description 10
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- 229920002521 macromolecule Polymers 0.000 claims description 3
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- 238000002347 injection Methods 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
-
- 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
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to roadway surrounding rock control technical field more particularly to a kind of construction methods for controlling roadway deformation, comprising: tunnelling and dynamic pressure influence the dynamic pressures such as last stage construction method and back production and influence staged construction method；Wherein, it includes: to drill in stress concentration region that tunnelling and dynamic pressure, which influence last stage construction method, forms relief area；Anchoring support is carried out in tunnel shallow-layer country rock region；It includes: to drill far from tunnel surface region that the dynamic pressures such as back production, which influence staged construction method, forms relief area；It is modified in the slip casting for carrying out country rock close to tunnel surface region compared to relief area；Anchoring support is carried out in tunnel shallow-layer country rock region, many kinds of measures plays a role jointly, farthest reduce influence of the impact dynamic load lotus to lane space, utmostly reduce the deformation in tunnel, while the dynamic disasters occurrence risk such as pressing with reducing roadway bump, it also ensures tunnel escape space after dynamic disaster occurs, reduces the injures and deaths of personnel.
Description
Technical field
The present invention relates to roadway surrounding rock control technical field more particularly to a kind of construction methods for controlling roadway deformation.
Background technique
With running down for coal mining condition, tunnel more and more undergoes complicated structure, deep high stress, soft
Test that is weak, the complex conditions such as adopting, supporting more difficult.By coal petrography mechanical characteristic and mining influence, many tunnels are rushed
It presses with hitting or stronger mine pressure shows equal dynamic phenomenons, show as tunnelling and meet head near zone or dynamic pressure influence area, coal
Big gun or roof strata frequent activity, or even disasters, the dynamic load shock waves of generation such as bump occurs, lane space is caused to rush
Break up bad, reduced space even closure.
Such tunnel undergoes two Main Stages: first stage: during tunnelling and working face extraction dynamic pressure or its
Before his dynamic pressure influences, surrouding rock deformation and extent of the destruction are smaller, and stress concentration degree is lower, and roadway surrounding rock abutment pressure distribution is such as
Shown in Fig. 1, with σzIt indicates；Second stage: during working face extraction or after other dynamic pressures influence, disturbance increases, and stress divides again
Cloth, intensity increase, and surrouding rock deformation and destruction increase, and the threat for the dynamic load that is hit is also bigger, roadway surrounding rock support pressure point
Cloth is as shown in Fig. 2, with σ 'zIt indicates.
Based on such situation, a kind of bright integrated control method is sent out, as far as possible reduction dynamic disaster probability of happening, reduces punching
The intensity for hitting dynamic load reduces the deformation extent of lane space, the integrated maintenance cost in tunnel is reduced, after more disaster accident occurs
Personnel escape create steric requirements as far as possible.
Summary of the invention
The embodiment of the present invention provides a kind of construction method for controlling roadway deformation, to solve in the prior art due to dynamic load
The problem of shock wave causes impact failure to lane space, and lane space is caused to deform, and is easy to happen the accidents such as disaster.
The embodiment of the present invention provides a kind of construction method for controlling roadway deformation, comprising: before tunnelling and dynamic pressure influence
The dynamic pressures such as staged construction method and back production influence staged construction method；Wherein,
The tunnelling and dynamic pressure influence last stage construction method
It drills in stress concentration region, carries out hydraulic fracturing in the borehole and form hydraulically created fracture or carry out high-pressure water jet
Joint-cutting forms relief area；
Anchoring support is carried out in tunnel shallow-layer country rock region；
The dynamic pressures such as the back production influence staged construction method
It drills far from tunnel surface region, carries out hydraulic fracturing in the borehole and form hydraulically created fracture or carry out high pressure
Water jet joint-cutting forms relief area；
It is modified in the slip casting for carrying out country rock close to tunnel surface region compared to relief area；
Anchoring support is carried out in tunnel shallow-layer country rock region.
Wherein, described to drill in stress concentration region, formation relief area is included in stress concentration region progress hydraulic fracturing and splits
Seam and high-pressure water jet joint-cutting.
Wherein, it is described far from tunnel surface region drill, formed relief area be included in far from tunnel surface region into
Row hydraulically created fracture and high-pressure water jet joint-cutting.
Wherein, described to carry out anchoring support in tunnel shallow-layer country rock region and be included in tunnel shallow-layer country rock using anchor pole and anchor
Rope supporting.
It is wherein, described that carry out anchoring support in tunnel shallow-layer country rock region further include in tunnel shallow-layer country rock using arch support
Plate, W steel panel, W steel band and double-level-metal net carry out supporting.
Wherein, the anchor pole is individually fixed in the shallow-layer country rock at tunnel two sides and top, and the anchor cable is fixed on tunnel
Top shallow-layer country rock.
Wherein, the array pitch of the anchor pole is 0.7-1.0m, and the array pitch of the anchor cable is 0.7-2.0m, the length of the anchor pole
It is 2.3 meters -3.0 meters, the length of the anchor cable is 4-8 meters.
Wherein, described is including in the region drilling apart from 15-40 meter of tunnel surface far from the drilling of tunnel surface region；Institute
It states and is included in apart from 4-10 meters of tunnel surface the slip casting for carrying out country rock close to tunnel surface region compared to relief area is modified
The slip casting that region carries out country rock is modified.
Wherein, described to drill in stress concentration region, hydraulic fracturing is carried out in the borehole forms hydraulically created fracture or progress
High-pressure water jet joint-cutting forms and drills described in the neutralization of relief area step far from tunnel surface region, carries out water in the borehole
It forces and splits to form hydraulically created fracture or carry out high-pressure water jet joint-cutting, form the aperture value model to drill in relief area step
It encloses for 50-80mm.
Wherein, described compared to relief area slip casting in the slip casting modification procedure that tunnel surface region carries out country rock
Using cement slurry, cement clay slurry, cement-sodium silicate slurry, superfine cement slurry, waterglass injecting paste material or machine macromolecule slip casting material
Material.
A kind of construction method controlling roadway deformation provided in an embodiment of the present invention, for the different phase of roadway construction,
Different construction methods is taken, the last stage is influenced in tunnelling and dynamic pressure, by drilling in region of stress concentration, forms release
Region, and in tunnel shallow-layer country rock anchoring support；The stage is influenced in dynamic pressures such as back production, by drilling in tunnel distant location, shape
At relief area, slip casting is modified at distance in tunnel, in tunnel distant location anchoring support.Present invention driving and dynamic pressure influence
Last stage passes through release transfer and anchor pole strength supporting；By weakening release at a distance and obstructing shock wave after dynamic pressure influence
It transmits, is middle apart from the modified high-intensitive high impact toughness supporting for forming main carrier ring, short distance superficial part of slip casting；Many kinds of measures is total
With playing a role, influence of the impact dynamic load lotus to lane space is farthest reduced, utmostly reduces the deformation in tunnel, drop
While the dynamic disasters occurrence risk such as pressing to low roadway bump, also ensures tunnel escape space after dynamic disaster occurs, subtract
The injures and deaths of few personnel.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is that tunnelling in the prior art and dynamic pressure influence front abutment pressure distribution schematic diagram；
Fig. 2 is that dynamic pressure in the prior art influences rear abutment pressure distribution schematic diagram；
Fig. 3 is the structural schematic diagram that tunnelling of the present invention and dynamic pressure influence last stage construction method；
Fig. 4 is the structural schematic diagram of release transition range of the present invention or release baffle area；
Fig. 5 is the structural schematic diagram that the dynamic pressures such as back production of the present invention influence staged construction method.
In figure: 1, tunnel；2, anchor pole；3, anchor cable；4, it drills；5, hydraulically created fracture；6, water jet joint-cutting.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
As Figure 1-Figure 5, the present invention discloses a kind of construction method for controlling roadway deformation, comprising: tunnelling and dynamic
Pressure, which influences the dynamic pressures such as last stage construction method and back production, influences staged construction method；Wherein,
The tunnelling and dynamic pressure influence last stage construction method
The drilling 4 in stress concentration region carries out hydraulic fracturing in drilling 4 and forms hydraulically created fracture 5 or carry out high pressure water
Jet stream joint-cutting 6 forms relief area；
Anchoring support is carried out in 1 shallow-layer country rock region of tunnel；
The dynamic pressures such as the back production influence staged construction method
It forms hydraulically created fracture 5 far from 1 surface region of tunnel drilling 4, carrying out hydraulic fracturing in drilling 4 or carries out
High-pressure water jet joint-cutting 6 forms relief area；
It is modified in the slip casting for carrying out country rock close to 1 surface region of tunnel compared to relief area；
Anchoring support is carried out in 1 shallow-layer country rock region of tunnel.
Note: " high pressure " in " high-pressure water jet joint-cutting " herein is the common knowledge in this field, and hydraulic pressure is
3000~4000 bars (bar).
Specifically, the construction method that the present invention discloses a kind of control roadway deformation is adopted according to the different phase of roadway construction
Take different construction methods:
The last stage is influenced in tunnelling and dynamic pressure, first to stress concentration region release: it is set using small-bore drilling 4,
While creating construction space for release, and greatly reduces drilling 4 and damaged caused by superficial part country rock and to supporting effect
Influence；Stress concentration region carry out release, can by the region surrouding rock stress value reduce while make high stress areas to
Deeper inside transfer reduces the risk of dynamic disaster, while the impact generated in face of more deep dynamic disaster, release drainage can absorb again
Part impact energy plays the role of barrier, reduction dynamic loading transmitting, is formed " release transition range "；It is high-strength that superficial part is carried out later
Supporting is spent, 1 superficial part country rock carries out 3 supporting of anchor pole 2 and anchor cable of high tenacity, high-elongation and high-bearing capacity in tunnel, selects branch
Protect that surface area is big, the higher component of rigidity, such as high intensity arch supporting plate, W steel panel, W steel band, double-level-metal net.It improves shallow
The supporting effect of portion's country rock reduces the deformation failure of shallow-layer country rock, keeps superficial part rock integrity to greatest extent, forms " anchor
Bar supporting area ".Injecting paste material is selected according to the actual situation, if destruction is more serious, fracture opening is big and more, using water
Mud-waterglass dual slurry；It, can be using cement-sodium silicate double liquid cooperation polymer chemistry slurry if general destroy；If split
Gap aperture is small, poor permeability, can be using superfine cement slurry, inorganic-organic composite material or polymer chemistry slurry.
Influence the stage in dynamic pressures such as back production, for tunnel 1 closely, middle distance and safeguarded respectively at a distance, first
In tunnel, 1 distant location carries out release: being set using small-bore drilling 4, while creating construction space for distant place release, again
Greatly reduce drilling 4 damage and influence to supporting effect caused by superficial part country rock；Release is being carried out at a distance, it can
Surrouding rock stress is shifted to deeper inside, reduces the risk of dynamic disaster, while the impact that dynamic disaster generates occurs in face of deep,
Release drainage can absorb part impact energy again, play the role of barrier, reduction dynamic loading transmitting, formed " release baffle area "；So
It is modified to carry out slip casting at distance in tunnel 1 afterwards: being defined range grouting and reinforcing in former release transition range, improves slip casting region
Synthesis load-carrying properties, formed a main carrier ring, dynamic load impact wave and the conduct in deep can be resisted to a certain degree
The main most static mine pressure of arrying main body carrying, very big protective effect is generated to external lane space, is formed
" reinforcing supporting region "；High strength support is closely finally carried out in tunnel 1,1 superficial part country rock carries out high tenacity, Gao Yanshen in tunnel
2 anchor cable of anchor pole, 3 supporting of rate and high-bearing capacity, selecting shield, surface area is big, the higher component of rigidity, such as high-intensitive arch supporting plate, W
Steel panel, W steel band, double-level-metal net etc..The supporting effect of superficial part country rock is improved, the deformation failure of shallow-layer country rock is reduced, it is maximum
The holding superficial part rock integrity of limit is formed in " suspension roof support area ".
Wherein, described to drill in stress concentration region using small-bore drilling 4 in the present invention, waterpower pressure is carried out in the borehole
It splits to form hydraulically created fracture or carry out high-pressure water jet joint-cutting, it is described far from tunnel surface to form the neutralization of relief area step
Region drilling carries out hydraulic fracturing in the borehole and forms hydraulically created fracture or carry out high-pressure water jet joint-cutting, forms distressed zone
The aperture value range to drill in the step of domain is 50-80mm.Cement injection or chemical material slip casting, cement injection can be used in slip casting
It include: cement slurry, cement clay slurry, cement-sodium silicate (sodium metasilicate) slurry etc. or superfine cement slurry etc.；Chemical material slip casting: water
Glass injecting paste material or machine macromolecule injecting paste material etc..
A kind of construction method controlling roadway deformation provided in an embodiment of the present invention, for the different phase of roadway construction,
Different construction methods is taken, influences the last stage in tunnelling and dynamic pressure, by the way that in region of stress concentration drilling 4, formation is unloaded
Intermediate pressure section, and in tunnel shallow-layer country rock anchoring support；The dynamic pressures such as back production influence the stage, by tunnel distant location drill 4,
Relief area is formed, slip casting is modified at distance in tunnel, in tunnel distant location anchoring support.Present invention driving and dynamic pressure shadow
The sound last stage passes through release transfer and anchor pole strength supporting；By weakening release at a distance and obstructing impact after dynamic pressure influence
Wave transmits, is middle apart from the modified high-intensitive high impact toughness supporting for forming main carrier ring, short distance superficial part of slip casting；Many kinds of measures
It plays a role jointly, farthest reduces influence of the impact dynamic load lotus to lane space, utmostly reduce the deformation in tunnel,
While the dynamic disasters occurrence risk such as pressing with reducing roadway bump, tunnel escape space after dynamic disaster occurs is also ensured,
The injures and deaths of reduction personnel.
Wherein, described in stress concentration region drilling 4, formation relief area is included in stress concentration region progress hydraulic fracturing and splits
Seam 5 and high-pressure water jet joint-cutting 6, artificially manufacture certain permission deformation space and plane of weakness, form a relief area.Similarly,
It is described far from 1 surface region of tunnel drilling 4, formed relief area be included in far from 1 surface region of tunnel carry out hydraulic fracturing
Crack 5 and high-pressure water jet joint-cutting 6 form large range of permission deformation space and plane of weakness in this way, form a relief area.
Wherein, described to carry out anchoring support in 1 shallow-layer country rock region of tunnel and be included in 1 shallow-layer country rock of tunnel using anchor pole 2
With 3 supporting of anchor cable.It can be applied to the driving of tunnel 1 using anchor pole 2 and 3 supporting of anchor cable in 1 shallow-layer country rock of tunnel in the present embodiment
And dynamic pressure influences the dynamic pressures such as last stage construction method or back production and influences in staged construction method.Specifically, the anchor pole 2 is distinguished
It is fixed on the shallow-layer country rock at 1 two sides of tunnel and top, the anchor cable 3 is fixed on the top shallow-layer country rock in tunnel 1.The anchor pole 2
Array pitch be 0.7-1.0m, the array pitch of the anchor cable 3 is 0.7-2.0m, and the length of the anchor pole 2 is 2.3 meters -3.0 meters, described
The length of anchor cable is 4-8 meters.According to actual needs, those skilled in the art can also use other anchor parts, such as tunnel 1
Shallow-layer country rock region or shallow-layer country rock are carried out anchoring support or further include being protected in 1 shallow-layer country rock of tunnel using arch supporting plate, W steel
Plate, W steel band and double-level-metal net carry out supporting.
Wherein, described is including in the region drilling apart from surface 15-40 meter of tunnel 1 far from 1 surface region of tunnel drilling 4
4；It is described to be included in close to the slip casting modification that 1 surface region of tunnel carries out country rock apart from 1 surface of tunnel compared to relief area
The slip casting that 4-10 meters of regions carry out country rock is modified.And it is about 5-15m that tunnelling and dynamic pressure, which influence the relief range of last stage,.Root
Factually the size in border tunnel 1 or other physical conditions influence, and those skilled in the art can suitably change the area of drilling 4 and slip casting
Domain selection.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of construction method for controlling roadway deformation characterized by comprising tunnelling and dynamic pressure influence last stage construction
The dynamic pressures such as method and back production influence staged construction method；Wherein,
The tunnelling and dynamic pressure influence last stage construction method
It drills in stress concentration region, carries out hydraulic fracturing formation hydraulically created fracture in the borehole or carry out high-pressure water jet to cut
Seam forms relief area；
Anchoring support is carried out in tunnel shallow-layer country rock region；
The dynamic pressures such as the back production influence staged construction method
It drills far from tunnel surface region, carries out hydraulic fracturing in the borehole and form hydraulically created fracture or carry out high-pressure water shot
Joint-cutting is flowed, relief area is formed；
It is modified in the slip casting for carrying out country rock close to tunnel surface region compared to relief area；
Anchoring support is carried out in tunnel shallow-layer country rock region.
2. the construction method of control roadway deformation according to claim 1, which is characterized in that described in tunnel shallow-layer country rock
Region progress anchoring support is included in tunnel shallow-layer country rock and utilizes anchor pole and cable bolting.
3. the construction method of control roadway deformation according to claim 2, which is characterized in that described in tunnel shallow-layer country rock
Region carry out anchoring support further include tunnel shallow-layer country rock using arch supporting plate, W steel panel, W steel band and double-level-metal net into
Row supporting.
4. the construction method of control roadway deformation according to claim 2, which is characterized in that the anchor pole is individually fixed in
The shallow-layer country rock of tunnel two sides and top, the anchor cable are fixed on the top shallow-layer country rock in tunnel.
5. the construction method of control roadway deformation according to claim 4, which is characterized in that the array pitch of the anchor pole is
0.7-1.0m, the array pitch of the anchor cable are 0.7-2.0m, and the length of the anchor pole is 2.3 meters -3.0 meters, the length of the anchor cable
It is 4-8 meters.
6. the construction method of control roadway deformation according to claim 1, which is characterized in that described far from tunnel surface
Region drilling includes in the region drilling apart from 15-40 meter of tunnel surface；It is described compared to relief area close to tunnel surface
The slip casting modification that region carries out country rock includes modified in the slip casting for carrying out country rock apart from 4-10 meters of tunnel surface region.
7. according to claim 1 described in any one of -6 control roadway deformation construction method, which is characterized in that it is described
Stress concentration region drilling carries out hydraulic fracturing in the borehole and forms hydraulically created fracture or carry out high-pressure water jet joint-cutting, formed
Relief area step drills described in neutralizing far from tunnel surface region, and progress hydraulic fracturing forms hydraulic fracturing and splits in the borehole
Seam carries out high-pressure water jet joint-cutting, and forming the aperture value range to drill in relief area step is 50-80mm.
8. according to claim 1 described in any one of -6 control roadway deformation construction method, which is characterized in that it is described
Compared to relief area, slip casting uses cement slurry, cement clay in the slip casting modification procedure that tunnel surface region carries out country rock
Slurry, cement-sodium silicate slurry, superfine cement slurry, waterglass injecting paste material or machine macromolecule injecting paste material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589034.1A CN110318761B (en) | 2019-07-02 | 2019-07-02 | Construction method for controlling roadway deformation |
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|---|---|---|---|
| CN201910589034.1A CN110318761B (en) | 2019-07-02 | 2019-07-02 | Construction method for controlling roadway deformation |
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| CN110318761A true CN110318761A (en) | 2019-10-11 |
| CN110318761B CN110318761B (en) | 2020-11-20 |
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| CN201910589034.1A Active CN110318761B (en) | 2019-07-02 | 2019-07-02 | Construction method for controlling roadway deformation |
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| CN111305876A (en) * | 2020-03-27 | 2020-06-19 | 天地科技股份有限公司 | Deep roadway anchoring-splitting grouting-hydraulic fracturing pressure relief cooperative control method |
| CN111720139A (en) * | 2020-06-19 | 2020-09-29 | 煤炭科学技术研究院有限公司 | Roadway impact ground pressure structure cooperative prevention and control method influenced by repeated mining |
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| CN112360470A (en) * | 2020-10-28 | 2021-02-12 | 中煤科工开采研究院有限公司 | Construction method for improving stress environment of advanced support pressure section of mining roadway |
| CN112431596A (en) * | 2020-11-26 | 2021-03-02 | 中煤科工开采研究院有限公司 | Three-stage prevention and control method for rock burst roadway |
| CN112554888A (en) * | 2020-11-19 | 2021-03-26 | 山东科技大学 | Pressure relief-reinforcement cooperative maintenance method for roadway under boundary coal pillar |
| CN112922636A (en) * | 2021-03-01 | 2021-06-08 | 天地科技股份有限公司 | Surrounding rock support construction method for roadway |
| CN113622913A (en) * | 2021-08-20 | 2021-11-09 | 中国矿业大学 | Deformation control method for mining tunnel surrounding rock integrated with underground and up-down tunnel by full-caving method |
| CN114109483A (en) * | 2021-11-24 | 2022-03-01 | 天地科技股份有限公司 | Dynamic load rock burst roadway surrounding rock stability control method |
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| CN111305876A (en) * | 2020-03-27 | 2020-06-19 | 天地科技股份有限公司 | Deep roadway anchoring-splitting grouting-hydraulic fracturing pressure relief cooperative control method |
| CN111720139B (en) * | 2020-06-19 | 2021-11-23 | 煤炭科学技术研究院有限公司 | Roadway impact ground pressure structure cooperative prevention and control method influenced by repeated mining |
| CN111720139A (en) * | 2020-06-19 | 2020-09-29 | 煤炭科学技术研究院有限公司 | Roadway impact ground pressure structure cooperative prevention and control method influenced by repeated mining |
| CN112360470A (en) * | 2020-10-28 | 2021-02-12 | 中煤科工开采研究院有限公司 | Construction method for improving stress environment of advanced support pressure section of mining roadway |
| CN112554888B (en) * | 2020-11-19 | 2022-08-02 | 山东科技大学 | Pressure relief-reinforcement cooperative maintenance method for roadway under boundary coal pillar |
| CN112554888A (en) * | 2020-11-19 | 2021-03-26 | 山东科技大学 | Pressure relief-reinforcement cooperative maintenance method for roadway under boundary coal pillar |
| CN112253163A (en) * | 2020-11-20 | 2021-01-22 | 临沂矿业集团菏泽煤电有限公司 | System for protecting mine roadway |
| CN112431596B (en) * | 2020-11-26 | 2022-02-15 | 中煤科工开采研究院有限公司 | Three-stage prevention and control method for rock burst roadway |
| CN112431596A (en) * | 2020-11-26 | 2021-03-02 | 中煤科工开采研究院有限公司 | Three-stage prevention and control method for rock burst roadway |
| CN112922636A (en) * | 2021-03-01 | 2021-06-08 | 天地科技股份有限公司 | Surrounding rock support construction method for roadway |
| CN112922636B (en) * | 2021-03-01 | 2023-11-17 | 天地科技股份有限公司 | Surrounding rock supporting construction method for roadway |
| CN113622913A (en) * | 2021-08-20 | 2021-11-09 | 中国矿业大学 | Deformation control method for mining tunnel surrounding rock integrated with underground and up-down tunnel by full-caving method |
| CN114109483A (en) * | 2021-11-24 | 2022-03-01 | 天地科技股份有限公司 | Dynamic load rock burst roadway surrounding rock stability control method |
| CN114109483B (en) * | 2021-11-24 | 2024-04-19 | 天地科技股份有限公司 | Dynamic load rock burst roadway surrounding rock stability control method |
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