CN106368705A - Method for controlling rock burst during roadway tunneling in fault fracture zone - Google Patents
Method for controlling rock burst during roadway tunneling in fault fracture zone Download PDFInfo
- Publication number
- CN106368705A CN106368705A CN201610915674.3A CN201610915674A CN106368705A CN 106368705 A CN106368705 A CN 106368705A CN 201610915674 A CN201610915674 A CN 201610915674A CN 106368705 A CN106368705 A CN 106368705A
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- Prior art keywords
- chamber
- concrete
- anchor
- grouting
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005641 tunneling Effects 0.000 title claims abstract description 9
- 239000011435 rock Substances 0.000 title abstract description 11
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 239000003245 coal Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 8
- 238000007569 slipcasting Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000011378 shotcrete Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract 2
- 230000001808 coupling effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 206010016173 Fall Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- 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
- 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 OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Remote Sensing (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a method for controlling rock burst during roadway tunneling in a fault fracture zone. The method comprises the steps that firstly, in the roadway tunneling process of a rock burst zone in the fault area, chambers are constructed to the two sides of a roadway at intervals, and temporary support through anchor rods is conducted; then, each chamber is filled with concrete through nogs; and finally, a roadway roof is subjected to grouting reinforcement. By implementing the three measures, in the roadway tunneling process in the high stress fault structure zone, the coupling effect of supporting, energy releasing and reinforcement can be achieved, the high stress fault structure zone can release energy stably for a long time, and the tendentiousness of the rock burst is reduced fundamentally.
Description
Technical field
The invention belongs to Coal Mining Technology field.
Background technology
China's coal-mine bump is closely related with geological conditions, and geologicstructure area bump is susceptible to, and accounts for
More than 60%.With the increase of coal mining depth, bump frequency and the intensity of structure realm are continuously increased, and occur disconnected
The bump in layer region occupies construction bump larger specific gravity, and this fault belt impact disaster has seriously govern me
The safety in production in state colliery.It was verified that tunnelling enters shear-zone, because fault belt rock stratum is relatively soft, and coal
Layer has shock hazard by force, under the conditions of the Engineering Disturbance of driving, structure type bump, such impact can occur
Ground pressure can cause coal petrography suddenly across falling, and takes precautions against difficulty greatly, and difficult supporting, difficult protection are disguised strong.This fault belt impact
The preventing and treating of ground pressure is different from general type, is difficult to take precautions against using conventional measure.Because coal (rock) body produces mixing impact, routine
Shield specific aim is difficult to hold, if being subject to the strong disturbance of work surface Dynamic stress field to act on again, easily occurs locality serious
Bump.
The dangerous bump of shear-zone, deep mining, thump has very strong disguise, and often in tunnel, the way of escape is sent out
Raw impact suddenly, is acted on motion with a large amount of rock fallings, and difficulty of afterwards resuming production is big.For the multi-fault zone of intersection
Domain, tomography concentrate this danger of burst of pinching band abnormal serious, and these regions are mostly in deep and there is tectonic stress position, such as
Synclinal shaft, basin region etc..China opens the old mine such as Luan mining area, southwest, northeast mining area, mountain energy mining area, mining depth
Degree maximum reaches more than 1000m, and average mining depth is more than 800m.Therefore, for this fault belt, there is hidden spy
The bump levied, needs to invent a kind of method adapting to high stress broken zone of rocks and energy prevention and control bump steady in a long-term, right
Prevention and control construction rock blast hazard is significant.
Content of the invention
The purpose of the present invention is for the problems referred to above, proposes to adapt to that high stress broken zone of rocks releases energy steadily in the long term
Plant Controlling of Coal Outburst method during fault belt Nei Jue lane.
For reaching above-mentioned purpose, the present invention adopts the technical scheme that:
A kind of Controlling of Coal Outburst method during fault belt Nei Jue lane is it is characterised in that include:
The first step, Chamber Construction
Exist in the section road tunneling process that bump occurs entering fault region, at interval of 15-20m, to lane
Road both sides construction depth 5m, width 3m, the chamber of height 2-3m, chamber top board planarizing process, and carry out anchor pole gib；
Using array pitch between 800*800 during anchor pole arrangement；
Grillage Concrete Filled in second step, chamber
First carry out grillage filling in the chamber of gib, then in grillage space filling concrete it is desirable to coagulation
Native intensity is more than the intensity of chamber balkstone；For reducing the disturbance between adjacent chamber, fill order takes interval filling side
Formula；
3rd step, back grouting and reinforcing
In there is the section road tunneling process that bump occurs, the strengthening supporting in driving, right first during supporting
Back gunite concrete, concrete ejection thickness 50mm it is ensured that closing closely knit after, then perforating install grouting cable anchor, according to
Conventional anchor cable grouting method carries out slip casting, grouting cable anchor length 6-7m, rope array pitch 1.6m, spacing 1.2m to back；Pass through
Anchor rope grouting, crushed zone top board is consolidated into overall structure.
The positive effect of the present invention is: after being implemented using above-mentioned three kinds of measures, in heavily stressed fault belt Nei Jue lane
Period, support will be played, release the coupling that can, reinforce, so that high stress broken zone of rocks is released energy steadily in the long term, fundamentally drop
The tendentiousness of low bump.
Brief description
The enforcement of the present invention is described below in conjunction with the accompanying drawings.
Fig. 1 is chamber arrangement floor map of the present invention；
Fig. 2 is chamber anchor pole schematic diagram of the present invention；
Fig. 3 is chamber grillage Concrete Filled schematic diagram of the present invention；
Fig. 4 is back grouting and reinforcing schematic diagram of the present invention.
Specific embodiment
During the fault belt Nei Jue lane of the present invention, Controlling of Coal Outburst method and step is as follows:
First, high density supporting Chamber Construction
As shown in figure 1, moving towards with tunnel according to fault parameter, it is being susceptible to fault region bump section, interval
15-20m, construction depth 5m, width 3m, the chamber of height 2-3m, chamber top board planarizing process, and carry out anchor as shown in Figure 2
Bar gib；Using array pitch between 800mm*800mm during anchor pole arrangement.
2nd, grillage Concrete Filled
As shown in figure 3, first carrying out grillage filling in the chamber of gib, then filling coagulation in grillage space
Soil is it is desirable to concrete strength is more than the intensity of chamber balkstone；For reducing the disturbance between adjacent chamber it is desirable to the filling time
Every carry out.
3rd, back grouting and reinforcing
As shown in figure 4, in there is the section road tunneling process that bump occurs, the strengthening supporting in driving,
First to back gunite concrete during shield, concrete ejection thickness 50mm it is ensured that closing closely knit after, then perforating install slip casting
Anchor cable, carries out slip casting, grouting cable anchor length 6-7m, rope array pitch 1.6m, spacing according to conventional anchor cable grouting method to back
1.2m；By anchor rope grouting, crushed zone top board is consolidated into overall structure.
Claims (1)
1. one kind during fault belt Nei Jue lane Controlling of Coal Outburst method it is characterised in that step is as follows:
The first step, Chamber Construction
Exist in the section road tunneling process that bump occurs entering fault region, at interval of 15-20m, to tunnel two
Other construction depth 5m, width 3m, the chamber of height 2-3m, chamber top board planarizing process, and carry out anchor pole gib；Anchor pole
Array pitch between 800*800 is adopted during arrangement；
Grillage Concrete Filled in second step, chamber
First carry out grillage filling in the chamber of gib, then in grillage space filling concrete it is desirable to strong concrete
Degree is more than the intensity of chamber balkstone；For reducing the disturbance between adjacent chamber, fill order takes interval filling mode；
3rd step, back grouting and reinforcing
In there is the section road tunneling process that bump occurs, the strengthening supporting in driving, first to tunnel during supporting
Top board gunite concrete, concrete ejection thickness 50mm it is ensured that closing closely knit after, then perforating install grouting cable anchor, according to routine
Anchor rope grouting method carries out slip casting, grouting cable anchor length 6-7m, rope array pitch 1.6m, spacing 1.2m to back；By anchor cable
Slip casting, crushed zone top board is consolidated into overall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915674.3A CN106368705A (en) | 2016-10-20 | 2016-10-20 | Method for controlling rock burst during roadway tunneling in fault fracture zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915674.3A CN106368705A (en) | 2016-10-20 | 2016-10-20 | Method for controlling rock burst during roadway tunneling in fault fracture zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368705A true CN106368705A (en) | 2017-02-01 |
Family
ID=57895689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610915674.3A Pending CN106368705A (en) | 2016-10-20 | 2016-10-20 | Method for controlling rock burst during roadway tunneling in fault fracture zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368705A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837415A (en) * | 2017-03-21 | 2017-06-13 | 辽宁工程技术大学 | A kind of device and method of prevention coal mining working face bump |
| CN108708755A (en) * | 2018-03-23 | 2018-10-26 | 武汉工程大学 | A kind of underground rock-burst prevention method |
| CN109915142A (en) * | 2019-04-13 | 2019-06-21 | 山东科技大学 | A kind of major fault fringe region Controlling of Coal Outburst method |
| CN109915141A (en) * | 2019-04-13 | 2019-06-21 | 山东科技大学 | The control method of not wide protection pillar mining roadway bump |
| CN112483186A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for judging impact risk of advanced broken roof coal seam by window intervention method |
| CN112483182A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for judging impact risk of high-homogeneity coal seam by window intervention method |
| CN113107537A (en) * | 2021-04-24 | 2021-07-13 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst confrontation type roadway |
| CN114000902A (en) * | 2021-09-22 | 2022-02-01 | 中国矿业大学(北京) | Method for maintaining broken top plate of negative coal pillar roadway by grouting reinforcement anchor rod suspension |
| CN114673508A (en) * | 2022-04-14 | 2022-06-28 | 天地科技股份有限公司 | Coal mine roadway area supporting method |
Citations (6)
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|---|---|---|---|---|
| RU2148171C1 (en) * | 1998-07-06 | 2000-04-27 | Дальневосточный государственный технический университет | Method of mineral deposit mining |
| CN102296958A (en) * | 2011-07-22 | 2011-12-28 | 山东科技大学 | Method for preventing rock burst by artificial space defect body |
| CN102425418A (en) * | 2011-11-14 | 2012-04-25 | 山东科技大学 | Method for controlling rock burst in artificial defect body of coal mine structural area |
| CN102518471A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Rock burst energy releasing method of roadway of high stress area in coal mine |
| CN102518436A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Method for controlling tectonic rock burst in coal mine tunneling |
| CN105201510A (en) * | 2015-10-27 | 2015-12-30 | 山东科技大学 | Preventing and controlling method for creep-induced rock burst |
-
2016
- 2016-10-20 CN CN201610915674.3A patent/CN106368705A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148171C1 (en) * | 1998-07-06 | 2000-04-27 | Дальневосточный государственный технический университет | Method of mineral deposit mining |
| CN102296958A (en) * | 2011-07-22 | 2011-12-28 | 山东科技大学 | Method for preventing rock burst by artificial space defect body |
| CN102425418A (en) * | 2011-11-14 | 2012-04-25 | 山东科技大学 | Method for controlling rock burst in artificial defect body of coal mine structural area |
| CN102518471A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Rock burst energy releasing method of roadway of high stress area in coal mine |
| CN102518436A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Method for controlling tectonic rock burst in coal mine tunneling |
| CN105201510A (en) * | 2015-10-27 | 2015-12-30 | 山东科技大学 | Preventing and controlling method for creep-induced rock burst |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837415A (en) * | 2017-03-21 | 2017-06-13 | 辽宁工程技术大学 | A kind of device and method of prevention coal mining working face bump |
| CN108708755A (en) * | 2018-03-23 | 2018-10-26 | 武汉工程大学 | A kind of underground rock-burst prevention method |
| CN109915142A (en) * | 2019-04-13 | 2019-06-21 | 山东科技大学 | A kind of major fault fringe region Controlling of Coal Outburst method |
| CN109915141A (en) * | 2019-04-13 | 2019-06-21 | 山东科技大学 | The control method of not wide protection pillar mining roadway bump |
| CN112483186A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for judging impact risk of advanced broken roof coal seam by window intervention method |
| CN112483182A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | Method for judging impact risk of high-homogeneity coal seam by window intervention method |
| CN113107537A (en) * | 2021-04-24 | 2021-07-13 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst confrontation type roadway |
| CN113107537B (en) * | 2021-04-24 | 2023-11-10 | 淮北市平远软岩支护工程技术有限公司 | Distributed grouting technology and method for rock burst countermeasure type roadway |
| CN114000902A (en) * | 2021-09-22 | 2022-02-01 | 中国矿业大学(北京) | Method for maintaining broken top plate of negative coal pillar roadway by grouting reinforcement anchor rod suspension |
| CN114000902B (en) * | 2021-09-22 | 2022-12-27 | 中国矿业大学(北京) | Method for suspension maintenance of broken roof of negative coal pillar roadway by grouting reinforced anchor rod |
| CN114673508A (en) * | 2022-04-14 | 2022-06-28 | 天地科技股份有限公司 | Coal mine roadway area supporting method |
| CN114673508B (en) * | 2022-04-14 | 2024-09-20 | 天地科技股份有限公司 | Coal mine tunnel area supporting method |
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| C06 | Publication | ||
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Application publication date: 20170201 |
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| RJ01 | Rejection of invention patent application after publication |