CN102914393B - Active pressure-bearing type positioning borehole stress meter and use method thereof - Google Patents
Active pressure-bearing type positioning borehole stress meter and use method thereof Download PDFInfo
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- CN102914393B CN102914393B CN201210393397.6A CN201210393397A CN102914393B CN 102914393 B CN102914393 B CN 102914393B CN 201210393397 A CN201210393397 A CN 201210393397A CN 102914393 B CN102914393 B CN 102914393B
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Abstract
The invention discloses an active pressure-bearing type positioning borehole stress meter and a use method thereof. The active pressure-bearing type positioning borehole stress meter comprises a columnar shell, wherein the columnar shell is full of grease oil; a piston is arranged at one end of the columnar shell; an elastic inductor is arranged at the other end of the columnar shell; a foil gauge is arranged on the elastic inductor; a rigid bearing piece is arranged on one side of the columnar shell; the rigid bearing piece is inserted into the columnar shell; the contact parts of the rigid bearing piece and the columnar shell are in sealing contact; and an angle sensor is fixed on the columnar shell. The active pressure-bearing type positioning borehole stress meter has an active pressure-bearing function, can timely judge a change rule of the stress, can dynamically quantitative monitor a stress change condition of a danger area during the whole process and can supply a reliable data to the forecasting and preventing for the impact danger. The stress change along a certain direction can be continuously observed according to a mounting position of the stress meter, so as to further confirm the direction of the force and conveniently and specifically prevent the rock burst.
Description
Technical field
The invention belongs to mine monitoring instrument.
Background technology
The coal seam in the most of mines of China and rock stratum all have Burst Tendency in various degree, and under certain critical depth, coal petrography impacts very serious.Although Chinese scholars, having obtained impressive progress aspect the researchs such as rock burst genesis mechanism, monitoring means and control technology, is also far from fundamentally solving its effective prediction and prevention problem.Aspect Prediction of Rock Burst, due to unclear to exploiting the time space distribution of rear movement Changing Pattern and face surrounding rock stress field, the decision theory imperfection of developing and back production, the digging design at rock burst coal seam at present relies on statistics experience to carry out decision-making substantially.Due to inward nature's rule of the coal-rock-impacting damage layer process under complicated heavily stressed and large Conditions of Buried Depth that is not sure, thus impact Hair Fixer time, place and the intensity etc. of giving birth to do not reach the degree of quantitative expectation.
The monitoring that the relative Changing Pattern of the stress of take is core is the essence of danger of burst prediction with analyzing.Aspect the quantitative observation relatively changing at dynamic stress scope, region of high stress stress, also do not form system, reliable observation procedure, particularly under deep-well condition, the emollescence of rock stratum is obvious, having there is basic change in its variation of stress, is therefore sought after detecting instrument impact coal rock layer destructive process and monitors.
Generally use at present a kind of stress state of borehole stressmeter observation rock mass.The structure of this borehole stressmeter is, in the flexible body of a sealing, pours into hydraulic oil, and flexible body is inserted in boring, and flexible body is provided with hydraulic pressure transducer, and hydraulic pressure transducer is connected on the pressure monitor outside hole; When changing, drilling hole stress from pressure monitor record output stress data, draws relative Changing Pattern.Because this borehole stressmeter adopts flexibility, add carrier, while pressing reaction slow, cannot observe immediately the stress state of rock mass, and of long duration easily occur that leakage, pressure start to decline, data are inaccurate; The data that measure are besides the stress of flexible body compression face vertical direction, owing to inserting boring, time cannot determine the direction of compression face, so the data that obtain reacts not go out real rock mass stress state, the control of impact ground pressure can only be for referencial use; For example, while wanting to survey the pressure of vertical direction, once taseometer compression face in horizontal direction, the stress state of rock mass does not just measure to be come, that misses impact and press prevents and treats chance, causes mine accident.
Summary of the invention
The object of the invention is the deficiency for existing borehole stressmeter, designing a kind of active pressure-bearing type can location drilling taseometer.
Technical scheme is, a kind of active pressure-bearing type can location drilling taseometer, it comprises a cylindrical shell, in cylindrical shell, be full of paste grease, one end of cylindrical shell is provided with piston, and the other end is provided with elasticity inductor, elasticity inductor is provided with foil gauge, one side of cylindrical shell is provided with rigidity bearing part, and rigidity bearing part stretches in cylindrical shell, and rigidity bearing part should seal and contact with cylindrical shell contact site; On cylindrical shell, fix an angular transducer.
In order to make above-mentioned borehole stressmeter in use be protected and can push smoothly boring deep, it also comprises that one with the shell of conehead.
Using method of the present invention is:
The first step, first active pressure-bearing type of the present invention can be bundled on bamboo pole by location drilling taseometer, with bamboo pole, push in boring, arrive set depth, the signal wire of angular transducer is connected with angel measuring instrument, rotate bamboo pole and observe rotational angle by angel measuring instrument, making the pressurized axis of rigidity bearing part consistent with the pressurized direction of precognition design, being fixed;
Second step, is connected the signal wire of foil gauge with pressure monitor; Then to pressurizing piston, exert pressure, make the compression of paste grease, promote rigidity bearing part and stretch out, thereby make rigidity bearing part be adjacent to the wall of a borehole, and stop exerting pressure after a given original pressure value, install;
The 3rd step, As time goes on, rock stratum deforms, rigidity bearing part is pressed in cylindrical shell, makes the compression of paste grease, thereby elasticity inductor is exerted pressure, elasticity inductor compressive deformation, foil gauge sends deformation signal, pressure monitor continuous recording output skew data, thus obtain the variation of stress of predicting direction in rock mass.
Good effect of the present invention is:
1, because this instrument has initiatively pressure-bearing function, can judge in time the Changing Pattern of dynamic stress, the STRESS VARIATION situation of omnidistance dynamic quantitative monitoring hazardous location, for danger of burst FORECAST AND PREVENTION provides reliable data.
2, according to taseometer installation position, can carry out Continuous Observation to the STRESS VARIATION of precognition direction, be convenient to impact and be pressed with prevention targetedly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, enforcement of the present invention is described.
Fig. 1 is the structure of the embodiment of the present invention and uses view.
Marginal data, 1-cylindrical shell, 2-paste grease, 3-piston, 4-elasticity inductor, 5-foil gauge, 6-rigidity bearing part, 7-angular transducer, 8-signal wire, 9-pressure monitor, 10-angel measuring instrument, 11-boring, 12-shell.
Embodiment
As shown in Figure 1, a kind of active pressure-bearing type can location drilling taseometer, it comprises cylindrical shell 1, in cylindrical shell 1, be full of paste grease 2, one end of cylindrical shell 2 is provided with piston 3, and the other end is provided with elasticity inductor 4, elasticity inductor 4 is provided with foil gauge 5, one side of cylindrical shell 1 is provided with rigidity bearing part 6, and rigidity bearing part 6 stretches in cylindrical shell 1, and rigidity bearing part 6 should seal and contact with cylindrical shell 1 contact site; It is fixed with angular transducer 7 on cylindrical shell 1.
In order to make above-mentioned borehole stressmeter in use be protected and can push smoothly boring deep, it also comprises that one with the shell 12 of conehead.
Using method of the present invention is,
The first step, first active pressure-bearing type of the present invention can be bundled on bamboo pole by location drilling taseometer, with bamboo pole, push in boring 11, arrive set depth, the signal wire of angular transducer 7 is connected with angel measuring instrument 10, rotate bamboo pole and by angel measuring instrument 10 observation rotational angles, make the pressurized axis of rigidity bearing part 6 and the pressurized direction of precognition consistent, fixed;
Second step, is connected the signal wire of foil gauge 58 with pressure monitor 9; Exert pressure then to pressurizing piston 3, make 2 compressions of paste grease, promote rigidity bearing part 6 and stretch out, thereby make rigidity bearing part 6 be adjacent to boring 11 walls, and stop exerting pressure after a given original pressure value, install;
The 3rd step, As time goes on, rock stratum deforms, rigidity bearing part 6 is pressed in cylindrical shell 1, makes 2 compressions of paste grease, thereby elasticity inductor 4 is exerted pressure, elasticity inductor 4 compressive deformations, foil gauge 5 sends deformation signal, pressure monitor 9 continuous recordings output skew data, thus obtain the variation of stress of predicting direction in rock mass.
Claims (3)
- One kind initiatively pressure-bearing type can location drilling taseometer, it is characterized in that, it comprises a cylindrical shell, in cylindrical shell, be full of paste grease, one end of cylindrical shell is provided with piston, and the other end is provided with elasticity inductor, elasticity inductor is provided with foil gauge, one side of cylindrical shell is provided with rigidity bearing part, and rigidity bearing part stretches in cylindrical shell, and rigidity bearing part should seal and contact with cylindrical shell contact site; On cylindrical shell, be fixed with angular transducer.
- 2. active pressure-bearing type as claimed in claim 1 can location drilling taseometer, it is characterized in that, it also comprises that one with the shell of conehead.
- 3. a method of utilizing active pressure-bearing type described in claim 1 or 2 can location drilling taseometer the STRESS VARIATION in rock mass to be surveyed, is characterized in that,The first step, first active pressure-bearing type can be bundled on bamboo pole by location drilling taseometer, with bamboo pole, push in boring, arrive set depth, the signal wire of angular transducer is connected with angel measuring instrument, rotate bamboo pole and observe rotational angle by angel measuring instrument, making the pressurized axis of rigidity bearing part consistent with the pressurized direction of precognition design, being fixed;Second step, is connected the signal wire of foil gauge with pressure monitor; Then to pressurizing piston, exert pressure, make the compression of paste grease, promote rigidity bearing part and stretch out, thereby make rigidity bearing part be adjacent to the wall of a borehole, and stop exerting pressure after a given original pressure value, install;The 3rd step, As time goes on, rock stratum deforms, rigidity bearing part is pressed in cylindrical shell, makes the compression of paste grease, thereby elasticity inductor is exerted pressure, elasticity inductor compressive deformation, foil gauge sends deformation signal, pressure monitor continuous recording output skew data, thus obtain the variation of stress of predicting direction in rock mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210393397.6A CN102914393B (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210393397.6A CN102914393B (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
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| Publication Number | Publication Date |
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| CN102914393A CN102914393A (en) | 2013-02-06 |
| CN102914393B true CN102914393B (en) | 2014-10-29 |
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| CN201210393397.6A Expired - Fee Related CN102914393B (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
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| CN103674347B (en) * | 2013-12-10 | 2016-01-20 | 太原理工大学 | A kind of hollow soft elasticity inductor drilling hole stress sensor and detection method |
| CN104101313B (en) * | 2014-08-04 | 2016-07-13 | 山东科技大学 | The quantitative observation defining method of impact coal-mass dilatation amount |
| CN106546366B (en) * | 2016-10-09 | 2019-02-19 | 安徽理工大学 | A kind of umbellate form deep hole three-dimensional stress and displacement comprehensive test device |
| CN106593412B (en) * | 2017-02-20 | 2023-12-01 | 中国矿业大学(北京) | Dynamic monitoring device and monitoring method for stability of full-angle gas extraction borehole |
| CN109441793B (en) * | 2018-09-17 | 2020-01-10 | 西安交通大学 | Method for obtaining p-V diagram of reciprocating compressor by measuring strain of piston rod |
| CN109489879B (en) * | 2018-11-23 | 2020-10-02 | 黑龙江科技大学 | Coal mine rock burst monitoring device and monitoring method |
| CN111982360A (en) * | 2020-09-01 | 2020-11-24 | 辽宁大学 | Small-sized pressure sensing device for robot foot |
| CN112127870A (en) * | 2020-09-11 | 2020-12-25 | 北京安科兴业科技股份有限公司 | Active pressure-bearing type drilling hole strain monitoring device and monitoring method |
| CN112557167A (en) * | 2020-12-18 | 2021-03-26 | 山东科技大学 | In-situ coal impact tendency observation method |
| CN112903023B (en) * | 2021-02-07 | 2022-02-18 | 江西理工大学 | Stress and sound emission integrated sensor for homologous monitoring, monitoring method and mounting method |
| CN114777963B (en) * | 2022-04-20 | 2022-10-21 | 中国地质科学院地质力学研究所 | Stress strain sensor hole wall coupling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10109121A1 (en) * | 2001-02-24 | 2002-09-05 | Schenck Process Gmbh | Measurement of shear stress associated with measurement of forces caused by loading of rollers, axles or shafts using a force sensor arrangement with strain gauges arranged along a dividing wall of a force transmission component |
| CN1851426A (en) * | 2006-06-02 | 2006-10-25 | 安里千 | Stress monitoring instrument |
| EP1726935A1 (en) * | 2005-05-25 | 2006-11-29 | Messier-Bugatti | Cell measuring strain and connecting axle equipped with such a cell |
| CN101246100A (en) * | 2007-11-14 | 2008-08-20 | 中国科学院武汉岩土力学研究所 | Deep borehole rock deformation testing device |
| CN201397207Y (en) * | 2009-04-30 | 2010-02-03 | 中国矿业大学 | Device for continuously testing ground stress of coal rock mass |
| CN202305065U (en) * | 2011-07-28 | 2012-07-04 | 中国地质科学院地质力学研究所 | Wireless piezomagnetic sensor for absolute measurement of crustal stress of deep well |
| CN202869713U (en) * | 2012-09-28 | 2013-04-10 | 山东科技大学 | Active pressure-bearing type borehole stress meter capable of positioning |
-
2012
- 2012-09-28 CN CN201210393397.6A patent/CN102914393B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10109121A1 (en) * | 2001-02-24 | 2002-09-05 | Schenck Process Gmbh | Measurement of shear stress associated with measurement of forces caused by loading of rollers, axles or shafts using a force sensor arrangement with strain gauges arranged along a dividing wall of a force transmission component |
| EP1726935A1 (en) * | 2005-05-25 | 2006-11-29 | Messier-Bugatti | Cell measuring strain and connecting axle equipped with such a cell |
| CN1851426A (en) * | 2006-06-02 | 2006-10-25 | 安里千 | Stress monitoring instrument |
| CN101246100A (en) * | 2007-11-14 | 2008-08-20 | 中国科学院武汉岩土力学研究所 | Deep borehole rock deformation testing device |
| CN201397207Y (en) * | 2009-04-30 | 2010-02-03 | 中国矿业大学 | Device for continuously testing ground stress of coal rock mass |
| CN202305065U (en) * | 2011-07-28 | 2012-07-04 | 中国地质科学院地质力学研究所 | Wireless piezomagnetic sensor for absolute measurement of crustal stress of deep well |
| CN202869713U (en) * | 2012-09-28 | 2013-04-10 | 山东科技大学 | Active pressure-bearing type borehole stress meter capable of positioning |
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