CN204899903U - Monitoring devices is warp in release drilling of coal petrography layer - Google Patents
Monitoring devices is warp in release drilling of coal petrography layer Download PDFInfo
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- CN204899903U CN204899903U CN201520611412.9U CN201520611412U CN204899903U CN 204899903 U CN204899903 U CN 204899903U CN 201520611412 U CN201520611412 U CN 201520611412U CN 204899903 U CN204899903 U CN 204899903U
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- deformation
- pillow
- sensing
- aqueduct
- overflow valve
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Abstract
Monitoring devices is warp in release drilling of coal petrography layer is including warping response pillow, direction awl, aqueduct, anti -skidding barb, check valve, overflow valve, high accuracy flowmeter. Rest the head on the water injection axle that the central axis was provided with a joinable aqueduct along warping the response. The aqueduct other end is connected with the tee bend, and check valve and overflow valve, high accuracy flowmeter are connected respectively to the other both ends of three -way. Monitoring method does: set up the set pressure of overflow valve according to the diameter of will monitor drilling, will warp sending into the appointed degree of depth of drilling behind the response pillow after, continue to warping slow water injection in the response pillow, until there being water to flow slightly from the overflow valve export through the aqueduct. Later stage monitoring in -process converts through the high accuracy flowmeter registration of being connected with the overflow valve and reachs the drilling deformation condition. The device has simple to operate, low in production cost, and the suitability is strong, advantages such as accuracy height.
Description
Technical field
The utility model relates to a kind of device of monitoring coal rock layer boring distortion, is particularly useful for the large deformation process of monitoring bump mine major diameter destressing borehole.
Background technology
In fields, mine such as collieries, along with adopting continuing to increase of dark and mining rate, rock blast hazard is day by day serious.Bump administers the top priority having become and ensured bump mine safety production.
Large diameter borehole release, as the effective measures of control bump, is widely adopted at bump mine, and achieves good effect.Destressing borehole realizes the effect of release coal rock layer Elastic deformation energy mainly through coal petrography fragmentation and even collapse hole around boring self-deformation and boring.Therefore, boring release effect with hole deflection and in close relations relevant over time, related data has great importance for data of holes drilled Design and optimization and the ageing judge of release thereof.Visible, the monitoring of destressing borehole deformation process has important practical and is worth.
Through inquiry, when existing 36-2 type borehole deformeter and utility model patent " high sensitivity borehole deformeter " (patent No.: CN203719798U), utility model patent " three-component dicyclo borehole deformeter " (patent No.: CU203310554U) are only applicable to geostress survey, the elastic deformation of slim hole is measured, cannot to the large deformation of large diameter borehole even collapse hole monitor.
The corresponding relation of patent of invention " a kind of device and method of simulation test boring distortion " the boring deflection that (patent No.: CN104535422N) utilizes laboratory analog simulation to obtain and relative pressure, reflection boring deflection indirectly.But in this device busy process, the hydraulic system of capsule pressure inductor and pipeline composition is closed, the compressible restriction of liquid body, when in capsule, fluid pressure is too high, higher reaction force will be applied to drill hole inner wall, and then changing boring deformation rule under field conditions (factors), the deformation data of acquisition will depart from actual conditions.In addition, be obtain " deflection-pressure " corresponding relation, before carrying out field monitoring, need special to make multiple resemble simulation test platform, technique relative complex and cost is high.
At present, also there is no that a kind of degree of accuracy is high, simple process, coal rock layer destressing borehole large deformation monitoring device with low cost.
Utility model content
(1) technical problem that will solve
The purpose of this utility model be to provide a kind of can the device of accurate measurements coal rock layer major diameter destressing borehole deflection process over time, realize the target that operating procedure is simple, with low cost simultaneously.
(2) technical scheme
For achieving the above object, the utility model takes following technical scheme:
Coal rock layer destressing borehole deformation monitoring device, it comprises deformation-sensing pillow, guide cone, aqueduct, anti-skidding hangnail, one way valve, overflow valve, high precision flow.Deformation-sensing pillow profile is cylindrical, is provided with the water filling axle of a connection aqueduct along deformation-sensing pillow central axis.The aqueduct other end is connected with threeway, and the other two ends of threeway connect one way valve and overflow valve, high precision flow respectively.
Described deformation-sensing pillow adopts elastomeric material to make, and the thickness of two bottom surfaces is 5 ~ 7mm, has certain degree of hardness, and diameter is slightly less than bore diameter; Lateral thickness 1 ~ 2mm, has better elasticity.The afterbody of deformation-sensing pillow is provided with air discharge cook.
Described water filling axle is hollow, is made up of hard metallic materials, and two ends is closed, and arranges along deformation-sensing pillow central axis, and afterbody exceeds deformation-sensing pillow 5 ~ 10cm, and end and deformation-sensing rest the head on compact siro spinning technology.The part of water filling axle in deformation-sensing pillow is provided with 6 ~ 10 circular water-guiding holes.Water filling axle revealed section is provided with mounting rod dop.
Described guide cone is the hollow cone without bottom surface, and bottom is rested the head on end outer rim by screw thread and deformation-sensing and is connected.
Described aqueduct adopts Low rigidity metal material to make, and external diameter Φ 5 ~ 7mm, is communicated with water filling axle revealed section side.
Described anti-skidding hangnail is welded by 6 ~ 8 steel wires and retainer ring, and wherein retainer ring is provided with internal thread, can mate with the external screw thread of water filling axle exposed parts.
Described overflow valve manually can set set-pressure, and can play the effect of water body pressure in steady-state deformation induction pillow.
The beneficial effects of the utility model are: be provided with water filling axle in deformation-sensing pillow, and deformation-sensing to rest the head on two bottom surface rubber thicknesses larger, and there is some strength, so can ensure the cylindrical shape that deformation-sensing is rested the head on, avoid it to bend in propelling movement process in boring; The two bottom surface compact siro spinning technology that water filling axle and deformation-sensing are rested the head on, can be out of shape by the axial expansion of restrained deformation induction pillow when hydraulic pressure increases, ensure the accurate corresponding relation of deformation-sensing pillow water yield and destressing borehole deflection; By arranging anti-skidding hangnail, can avoid big-elevation hole deformation monitoring time deformation-sensing rest the head on the problem easily skidded off; By arranging guide cone, can prevent deformation-sensing from resting the head on the residual drilling cuttings constantly piling up foot of hole in propelling movement process; By arranging overflow valve and set-pressure thereof, deformation-sensing can being made to rest the head on when fully contacting with borehole wall, keeping constant low hydraulic pressure, be not enough to the natural deformation behaviour affecting boring, and perception boring distortion that can be responsive.This utility model has easy for installation, and cost of production is low, and applicability is strong, accuracy of measurement advantages of higher.
Accompanying drawing explanation
Fig. 1 is the overall diagram of coal rock layer destressing borehole deformation monitoring device of the present utility model.
Fig. 2 is the sectional drawing of deformation-sensing pillow in coal rock layer destressing borehole deformation monitoring device of the present utility model.
Fig. 3 is the lateral view of anti-skidding hangnail in coal rock layer destressing borehole deformation monitoring device of the present utility model.
Schematic diagram when Fig. 4 is in-site installation when arranging in same inclined drill that multiple deformation-sensing is rested the head on.
In figure: 1, guide cone; 2, deformation-sensing pillow; 3, water-guiding hole; 4, water filling axle; 5, air discharge cook; 6, anti-skidding hangnail; 7, mounting rod dop; 8, aqueduct; 9, threeway; 10, one way valve; 11, overflow valve; 12, high precision flow; 601, steel wire; 602, retainer ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
The present embodiment is with certain diameter for 130mm, and the elevation angle is the destressing borehole of 50 ° is example, introduces the implementation step of monitoring boring distortion.
Coal rock layer destressing borehole deformation monitoring device, it comprises deformation-sensing pillow 2, guide cone 1, aqueduct 8, anti-skidding hangnail 6, one way valve 10, overflow valve 11, high precision flow 12.It is cylindrical that deformation-sensing rests the head on 2 profiles, rests the head on along deformation-sensing the water filling axle 4 that 2 central axis are provided with a connection aqueduct 8.Aqueduct 8 other end is connected with threeway 9, and the other two ends of threeway connect one way valve 10 and overflow valve 11, high precision flow 12 respectively.
Described deformation-sensing pillow 2 adopts elastomeric material to make, and the thickness of two bottom surfaces is 5 ~ 7mm, has certain degree of hardness, diameter of phi 100 ~ 110mm; Lateral thickness 1 ~ 2mm, has better elasticity.The afterbody of deformation-sensing pillow 2 is provided with air discharge cook 5.
Described water filling axle 4 is hollow, is made up of hard metallic materials, and two ends is closed, and rests the head on 2 central axis arrange along deformation-sensing, and afterbody exceeds deformation-sensing pillow 5 ~ 10cm, and end and deformation-sensing rest the head on 2 compact siro spinning technology.The part of water filling axle 4 in deformation-sensing pillow 2 is provided with 8 circular water-guiding holes 3.Water filling axle 4 revealed section is provided with mounting rod dop 7.
Described guide cone 1 is the hollow cone without bottom surface, is made up of ordinary rigid plastics, and bottom is rested the head on 2 end outer rims by screw thread and deformation-sensing and is connected.
Described aqueduct 8 adopts Low rigidity metal material to make, external diameter Φ 5 ~ 7mm, is communicated with water filling axle 4 revealed section side.
Described anti-skidding hangnail 6 is welded by 6 14# steel wires 601 and retainer ring 602, and wherein retainer ring 602 is provided with internal thread, can mate with the external screw thread of water filling axle 4 exposed parts.
Described overflow valve 11 manually can set set-pressure, and can play the effect of water body pressure in steady-state deformation induction pillow 2.
For monitoring the deflection at different depth place in same boring, successively multiple deformation-sensing can be rested the head on 2 intervals from inside to outside and being arranged in boring, each deformation-sensing pillow 2 connects respective aqueduct 8 and miscellaneous part respectively.By reading the registration of different high precision flow 12, the deflection of different borings at different depth place can be grasped.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (7)
1. coal rock layer destressing borehole deformation monitoring device, is characterized in that: it comprises deformation-sensing pillow, guide cone, aqueduct, anti-skidding hangnail, one way valve, overflow valve, high precision flow; Deformation-sensing pillow profile is cylindrical, is provided with the water filling axle of a connection aqueduct along deformation-sensing pillow central axis; The aqueduct other end is connected with threeway, and the other two ends of threeway connect one way valve and overflow valve, high precision flow respectively.
2. coal rock layer destressing borehole deformation monitoring device according to claim 1, is characterized in that: deformation-sensing pillow adopts elastomeric material to make, and the thickness of two bottom surfaces is 5 ~ 7mm, has certain degree of hardness, and diameter is slightly less than bore diameter; Lateral thickness 1 ~ 2mm, has better elasticity; The afterbody of deformation-sensing pillow is provided with air discharge cook.
3. coal rock layer destressing borehole deformation monitoring device according to claim 1, it is characterized in that: water filling axle is hollow, be made up of hard metallic materials, two ends is closed, arrange along deformation-sensing pillow central axis, afterbody exceeds deformation-sensing pillow 5 ~ 10cm, and end and deformation-sensing rest the head on compact siro spinning technology; The part of water filling axle in deformation-sensing pillow is provided with 6 ~ 10 circular water-guiding holes, and water filling axle revealed section is provided with mounting rod dop.
4. coal rock layer destressing borehole deformation monitoring device according to claim 1, is characterized in that: guide cone is the hollow cone without bottom surface, bottom is rested the head on end outer rim by screw thread and deformation-sensing and is connected.
5. coal rock layer destressing borehole deformation monitoring device according to claim 1, is characterized in that: aqueduct adopts Low rigidity metal material to make, and external diameter Ф 5 ~ 7mm, is communicated with water filling axle revealed section side.
6. coal rock layer destressing borehole deformation monitoring device according to claim 1, is characterized in that: anti-skidding hangnail is welded by 6 ~ 8 steel wires and retainer ring, and wherein retainer ring is provided with internal thread, can mate with the external screw thread of water filling axle exposed parts.
7. coal rock layer destressing borehole deformation monitoring device according to claim 1, is characterized in that: overflow valve manually can set set-pressure, and can play the effect of water body pressure in steady-state deformation induction pillow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611412.9U CN204899903U (en) | 2015-08-14 | 2015-08-14 | Monitoring devices is warp in release drilling of coal petrography layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611412.9U CN204899903U (en) | 2015-08-14 | 2015-08-14 | Monitoring devices is warp in release drilling of coal petrography layer |
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| Publication Number | Publication Date |
|---|---|
| CN204899903U true CN204899903U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520611412.9U Expired - Fee Related CN204899903U (en) | 2015-08-14 | 2015-08-14 | Monitoring devices is warp in release drilling of coal petrography layer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003250A (en) * | 2015-08-14 | 2015-10-28 | 天地科技股份有限公司 | Device and method for monitoring pressure-relief borehole deformation of coal and rock strata |
| CN106988738A (en) * | 2017-05-11 | 2017-07-28 | 中国矿业大学 | A kind of detection method of definitely stress distribution feature |
| CN107401402A (en) * | 2017-09-05 | 2017-11-28 | 中国矿业大学(北京) | A kind of mash gas pumping drilling stability fixed point monitoring attending device and method |
| CN108915692A (en) * | 2018-05-24 | 2018-11-30 | 国网山东省电力公司济南供电公司 | Cable tunnel gaging hole coverage measurement method based on BOTDR optical fiber sensing technology |
-
2015
- 2015-08-14 CN CN201520611412.9U patent/CN204899903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003250A (en) * | 2015-08-14 | 2015-10-28 | 天地科技股份有限公司 | Device and method for monitoring pressure-relief borehole deformation of coal and rock strata |
| CN106988738A (en) * | 2017-05-11 | 2017-07-28 | 中国矿业大学 | A kind of detection method of definitely stress distribution feature |
| CN107401402A (en) * | 2017-09-05 | 2017-11-28 | 中国矿业大学(北京) | A kind of mash gas pumping drilling stability fixed point monitoring attending device and method |
| CN108915692A (en) * | 2018-05-24 | 2018-11-30 | 国网山东省电力公司济南供电公司 | Cable tunnel gaging hole coverage measurement method based on BOTDR optical fiber sensing technology |
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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: Wang Shuwen Inventor after: Shi Qingwen Inventor after: Lan Hang Inventor after: Pan Junfeng Inventor after: Wang Yuanjie Inventor before: Wang Shuwen Inventor before: Shi Qingwen Inventor before: Lan Hang Inventor before: Pan Junfeng |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |