CN204457782U - Remove the high-pressure water injection device of fracture slide type rockburst risk - Google Patents
Remove the high-pressure water injection device of fracture slide type rockburst risk Download PDFInfo
- Publication number
- CN204457782U CN204457782U CN201520007473.4U CN201520007473U CN204457782U CN 204457782 U CN204457782 U CN 204457782U CN 201520007473 U CN201520007473 U CN 201520007473U CN 204457782 U CN204457782 U CN 204457782U
- Authority
- CN
- China
- Prior art keywords
- pressure water
- water injection
- steel pipe
- high pressure
- injecting drilling
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a kind of high-pressure water injection device removing fracture slide type rockburst risk.The purpose of this utility model is to provide a kind of high-pressure water injection device removing fracture slide type rockburst risk, and reduced the intensity of surrouding rock stress and energy in fault zone by high pressure water injection, efficient solution is except rockburst risk.The technical solution of the utility model is: a kind of high-pressure water injection device removing fracture slide type rockburst risk, there is in the front of driving tunnel the fault zone of buried underground country rock, being drilled with 2 ~ 3 with fault zone from driving tunnel to fault zone is the water injecting drilling of intersect with large-angle, and water injecting drilling passes fracture 1 ~ 2m; Place high pressure water injection steel pipe in water injecting drilling and ensure that the water-injection steel pipe length of aperture section is 2m, the orifice end of high pressure water injection steel pipe connects water inlet tube interface; Sealing rubber ring is set at the position, aperture of water injecting drilling, is applicable to buried hard rock underground engineering field at the water injecting drilling except near fault zone and between high pressure water injection steel pipe with cement paste shutoff the utility model.
Description
Technical field
The utility model is bright relates to a kind of high-pressure water injection device removing fracture slide type rockburst risk, is applicable to buried hard rock underground engineering field.
Background technology
Rock burst is a kind of mode of failure violent suddenly of country rock in deep-buried underground engineering, is that the unexpected release of potential energy or the strain energy accumulated in rock causes.Under rock burst in deep-buried underground engineering often appears at some specific geology background conditions, except buried depth is relevant with the primary condition of Rock Mass Integrality, rock burst destroy often to geological structure and rupture relevant.According to current international widespread consensus, rock burst generally can be divided into 3 types, i.e. strain type rock burst, breaking type rock burst and rock pillar type rock rock burst, wherein to Effects on Engineering the most outstanding be breaking type rock burst.
Breaking type rock burst is found as far back as the phase at the beginning of the eighties in last century and is familiar with, slide type mechanism be wherein considered to fracture structure be subject to high stress there is the slippage changing of the relative positions later, cause fault offset impact country rock, when forming surrounding rock failure, be called the rock burst of fracture slide type, fault offset is wherein called as microseismic event.This is a kind of rock burst type of widespread reports in the world, destructive power is very big, mainly relevant to stiffness cracks, send out with a lot of tectonic earthquake and shake principle similarly, some position (as played the bite such as underlying mass) etc. of this stiffness cracks possesses the heavily stressed condition of accumulation, when bite is destroyed, there is slippage and release energy in fracture, and the rock burst caused is the rock burst of fracture slide type.
According to the genesis mechanism of above-mentioned rock burst, control method for rockburst risk mainly reduces stress or concentration of energy degree, such as stress relieving explosion, stress relief hole, surface sprinkling etc., but because the prediction difficulty of fracture slide type rock burst is high, technical difficulty is larger, risk control difficulty is high, and the special releasing case history for fracture slide type rockburst risk is few in the world, in the urgent need to relevant technology as support.And the high pressure water injection measure adopted in the practice of colliery, its condition is that coal seam has water imbibition, can change coal seam characteristic in softening mode, but has the different mechanism of action and service condition from the high pressure water injection under hard rock condition; And the special stress relieving case history for breaking type rock burst is few in the world at present, does not also adopt the engineering example of high pressure water injection measure.
Summary of the invention
The technical problems to be solved in the utility model is: for above-mentioned existing problems, and provide a kind of high-pressure water injection device removing fracture slide type rockburst risk, reduced the intensity of surrouding rock stress and energy in fault zone by high pressure water injection, efficient solution is except rockburst risk.
The technical scheme that the utility model adopts is: a kind of high-pressure water injection device removing fracture slide type rockburst risk, there is in the front of driving tunnel the fault zone of buried underground country rock, it is characterized in that: being drilled with 2 ~ 3 with fault zone from driving tunnel to fault zone is the water injecting drilling of intersect with large-angle, and described water injecting drilling passes fracture 1 ~ 2m; Place high pressure water injection steel pipe in water injecting drilling and ensure that the water-injection steel pipe length of aperture section is 2m, the orifice end of high pressure water injection steel pipe connects water inlet tube interface; Sealing rubber ring is set at the position, aperture of water injecting drilling, and uses cement paste shutoff at the water injecting drilling except near fault zone and between high pressure water injection steel pipe.
Described high pressure water injection steel pipe is held level with both hands away from aperture and is connected to sleeve pipe.
The position, aperture of described water injecting drilling is provided with locating ring, and locating ring is between high pressure water injection steel pipe and sealing rubber ring.
Described water injecting drilling diameter 60mm, high pressure water injection diameter of steel tube and casing diameter are 46mm, water inlet tube interface diameter 30mm.
Described wide-angle is 60 ~ 120 degree.
The beneficial effects of the utility model are: the high-pressure water injection device of the releasing fracture slide type rockburst risk that the utility model provides, and impel fracture the changing of the relative positions to occur to discharge the high-energy of accumulation, reduce rockburst risk, guarantee construction safety by high pressure water injection.In addition, the high pressure water injection equipment that the utility model is arranged in driving tunnel front is relatively simple and practical, compared with other rockburst risk active control measures, considerably reduces manpower and materials cost, and simply effective.
Accompanying drawing explanation
Fig. 1 is the location arrangements figure in high pressure water injection hole of the present utility model;
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the present embodiment is a kind of high-pressure water injection device removing fracture slide type rockburst risk, comprises country rock 1, driving tunnel 2, water injecting drilling 3, high pressure water injection steel pipe 4, water inlet tube interface 5, sleeve pipe 6, sealing rubber ring 7, cement paste 8 and locating ring 9.
The present embodiment has the driving tunnel 2 of a horizontal direction in buried underground country rock 1, there is one to be the diagonal break band 1-1 of 40 ~ 45 degree of angles with horizontal direction in the driving front of tunnel, in order to reduce the risk of breaking type rock burst, this example is drilled with 2 diameter 60mm, the basic water injecting drilling 3 intersected vertically with fault zone from the fault zone 1-1 of driving tunnel 2 to country rock 1, and the total length of water injecting drilling is no more than 20m and pass fault zone 1 ~ 2m; High pressure water injection steel pipe 4 is placed in water injecting drilling 3, diameter is 46mm, the high pressure water injection steel pipe length of general aperture section is 2m, orifice end and the diameter of this high pressure water injection steel pipe are that the water inlet tube interface 5 of 30mm is connected, if high pressure water injection steel pipe 4 cannot pass fault zone 1 ~ 2m, then need to hold level with both hands away from aperture at this water-injection steel pipe and connect the sleeve pipe 6 that diameter is 46mm equally; During for preventing water filling, water body seepage, arranges sealing rubber ring 7 at the position, aperture of water injecting drilling 3, and with cement paste 8 shutoff between the water injecting drilling 3 except near fault zone and high pressure water injection steel pipe 4; Locating ring 9 is set between the high pressure water injection steel pipe 4 and sealing rubber ring 7 at position, water injecting drilling 3 aperture, to ensure that boring accurately can pass fault zone 1-1.
Here is the method adopting this high-pressure water injection device to remove rockburst risk, and step is as follows:
1, tunnel tunnel 2 hole obliquely and pass fault zone 1 ~ 2m, drilling hole amount 2 ~ 3 is advisable, and drillable length, no more than 20m, adopts 2 borings in the present embodiment;
2, water injecting drilling 3 diameter 60mm, high pressure water injection steel pipe 4 diameter 46mm, water inlet tube interface 5 diameter 30mm;
3, the general length in position, high pressure water injection steel pipe 4 aperture is 2m, if cannot ensure through fault zone 1 ~ 2m, then continue to increase sleeve pipe 6, casing diameter still requires as 46mm;
4, increase sealing rubber ring 7 at position, aperture, except near fault zone, other position of water injecting drilling 3 all adopts cement paste 8 that water-injection steel pipe and country rock are carried out shutoff, to ensure sealing, prevents the seepage in the injecting process;
5, locating ring 9 is increased at position, aperture, to ensure that boring accurately can pass fault zone 1-1;
6, water under high pressure is injected by water inlet tube interface 5, impel fracture that the changing of the relative positions occurs, the high-energy of release accumulation, the water pressure met the demands in the present embodiment is 20MPa, fracture can be opened 0.12mm, under the compression pump of selection possesses 25MPa pressure, keep the water injection capacity of 120L/min.
Claims (5)
1. remove the high-pressure water injection device of fracture slide type rockburst risk for one kind, there is in the front of driving tunnel (2) fault zone (1-1) of buried underground country rock (1), it is characterized in that: being drilled with 2 ~ 3 with fault zone from driving tunnel (2) to fault zone (1-1) is the water injecting drilling (3) of intersect with large-angle, and described water injecting drilling passes fault zone (1-1) 1 ~ 2m; Place high pressure water injection steel pipe (4) in water injecting drilling (3) and ensure that the water-injection steel pipe length of aperture section is 2m, the orifice end of high pressure water injection steel pipe (4) connects water inlet tube interface (5); At the position, aperture of water injecting drilling (3), sealing rubber ring (7) is set, and with cement paste (8) shutoff between the water injecting drilling (3) except near fault zone and high pressure water injection steel pipe (4).
2. the high-pressure water injection device removing fracture slide type rockburst risk according to claim 1, is characterized in that: described high pressure water injection steel pipe (4) is held level with both hands away from aperture and is connected to sleeve pipe (6).
3. the high-pressure water injection device removing fracture slide type rockburst risk according to claim 1 and 2, it is characterized in that: the position, aperture of described water injecting drilling (3) is provided with locating ring (9), and locating ring is positioned between high pressure water injection steel pipe (4) and sealing rubber ring (7).
4. the high-pressure water injection device removing fracture slide type rockburst risk according to claim 1 and 2, it is characterized in that: described water injecting drilling (3) diameter 60mm, high pressure water injection steel pipe (4) diameter and sleeve pipe (6) diameter are 46mm, water inlet tube interface (5) diameter 30mm.
5. the high-pressure water injection device removing fracture slide type rockburst risk according to claim 1, is characterized in that: described wide-angle is 60 ~ 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007473.4U CN204457782U (en) | 2015-01-05 | 2015-01-05 | Remove the high-pressure water injection device of fracture slide type rockburst risk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007473.4U CN204457782U (en) | 2015-01-05 | 2015-01-05 | Remove the high-pressure water injection device of fracture slide type rockburst risk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457782U true CN204457782U (en) | 2015-07-08 |
Family
ID=53664684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007473.4U Withdrawn - After Issue CN204457782U (en) | 2015-01-05 | 2015-01-05 | Remove the high-pressure water injection device of fracture slide type rockburst risk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533430A (en) * | 2015-01-05 | 2015-04-22 | 中国电建集团华东勘测设计研究院有限公司 | Breakage and slippage type rockburst risk relieving high-pressure water injection device and construction method of breakage and slippage type rockburst risk relieving high-pressure water injection device |
| CN110512588A (en) * | 2019-08-13 | 2019-11-29 | 安徽理工大学 | A kind of guard method across mining area surface tension crack belt protection zone |
-
2015
- 2015-01-05 CN CN201520007473.4U patent/CN204457782U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533430A (en) * | 2015-01-05 | 2015-04-22 | 中国电建集团华东勘测设计研究院有限公司 | Breakage and slippage type rockburst risk relieving high-pressure water injection device and construction method of breakage and slippage type rockburst risk relieving high-pressure water injection device |
| CN110512588A (en) * | 2019-08-13 | 2019-11-29 | 安徽理工大学 | A kind of guard method across mining area surface tension crack belt protection zone |
| CN110512588B (en) * | 2019-08-13 | 2021-05-25 | 安徽理工大学 | Protection method for tension fracture belt type protection zone crossing mine surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110145233B (en) | Rock burst coal seam drilling-cutting-pressing-pumping-injecting multi-disaster cooperative prevention and control method | |
| CN102619552B (en) | Directional hydraulic pressing penetration, permeability increase and outburst elimination method of guide groove | |
| Huang et al. | Cavability control by hydraulic fracturing for top coal caving in hard thick coal seams | |
| CN102140901B (en) | High pressure resistant drilled hole sealing method | |
| CN103133028B (en) | Underground coal seam hydrofracture crack oriented developing method | |
| CN107165638B (en) | A kind of deep tunnel rock burst active preventing control method | |
| WO2016019825A1 (en) | Enhanced phase-change fracking gas extraction method for low-permeability coal bed | |
| AU2015299588B2 (en) | Freezing cross-cut coal cutting method based on hydraulic seam-cutting | |
| CN103233768B (en) | Horizontal-drilling staged-fracturing pressure relief method for underground coal bed | |
| CN106195616A (en) | A kind of liquid CO 2 bulking system | |
| CN102536240B (en) | Method for preventing rock burst by adopting high-pressure fracturing | |
| CN109139092B (en) | One-hole multipurpose construction method for treating impact and gas disaster of deep-buried coal seam | |
| CN108590739B (en) | A kind of prominent tunnel regionality energy divides source to control anti-burst method | |
| CN107304676A (en) | A kind of prevention and controls for leaving bump under coal column | |
| CN201310362Y (en) | Installing device of high pressure water burst drill hole bore pipe | |
| CN110080771A (en) | A kind of deep-well high stress pillar releases the method that can be modified prevention and treatment bump | |
| AU2016231635A1 (en) | A method of improving the wetted radius of high pressure water injection of lowly permeable coal seams through sublevel presplitting | |
| CN104612730A (en) | Large-deformation self-adaptation anchor rod | |
| CN110985109A (en) | High-pressure water injection fracturing system and operation method | |
| CN104696006B (en) | Ground drilling penetrates the method for abandoned coal pillar extraction multilamellar old dead zone remnants coal bed gas | |
| CN104533430B (en) | Release high-pressure water injection device and the construction method thereof of fracture slide type rockburst risk | |
| CN204457782U (en) | Remove the high-pressure water injection device of fracture slide type rockburst risk | |
| CN201372770Y (en) | Blowout prevention valve | |
| ZHU et al. | Prevention of rockburst by guide holes based on numerical simulations | |
| CN109209325A (en) | A method of uncovering coal in vertical shaft is carried out using radial technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Ning Inventor after: Zhou Xiaoming Inventor after: Fang Dunmin Inventor after: Wang Hengle Inventor before: Liu Ning Inventor before: Zhou Xiaoming Inventor before: Fang Guomin Inventor before: Wang Hengle |
|
| COR | Change of bibliographic data | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20161005 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |