CN202869713U - Active pressure-bearing type borehole stress meter capable of positioning - Google Patents
Active pressure-bearing type borehole stress meter capable of positioning Download PDFInfo
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- CN202869713U CN202869713U CN 201220526699 CN201220526699U CN202869713U CN 202869713 U CN202869713 U CN 202869713U CN 201220526699 CN201220526699 CN 201220526699 CN 201220526699 U CN201220526699 U CN 201220526699U CN 202869713 U CN202869713 U CN 202869713U
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- columnar casing
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Abstract
The utility model discloses an active pressure-bearing type borehole stress meter capable of positioning. The borehole stress meter comprises a columnar casing which is filled with paste grease, one end of the columnar casing is provided with a piston, the other end is provided with an elastic inductor, the elastic inductor is equipped with a strain gauge, one side of the columnar casing is provided with a rigid bearing element, and the rigid bearing element stretches into the columnar casing, and is in contact with the columnar casing in a contact part in a sealing manner; and the columnar casing is fixedly provided with an angle sensor. The active pressure-bearing type borehole stress meter capable of positioning has an active pressure-bearing function, the change rule of dynamic stress can be judged in a timely manner, and the situation of stress changes of a dangerous region can be dynamically and quantitatively monitored in the whole process, providing reliable data for prediction and prevention of impact dangers. And according to the mounting direction of the stress meter, stress changes of a certain direction can be continuously observed, so that the direction of force is further determined, facilitating directed prevention of pressure bump.
Description
Technical field
The utility model belongs to the 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 coal petrography impacts very serious under certain critical depth.Although Chinese scholars also is far from fundamentally solving its effective prediction and prevention problem having obtained impressive progress aspect the researchs such as rock burst genesis mechanism, monitoring means and control technology.Aspect Prediction of Rock Burst, because unclear to the time space distribution of exploiting rear movement Changing Pattern and face surrounding rock stress field, the decision theory imperfection of developing and back production, the at present digging design at rock burst coal seam relies on the statistics experience to make a strategic decision basically.Inward nature's rule of the coal-rock-impacting damage layer process owing to be not sure under the complicated heavily stressed and large Conditions of Buried Depth, thereby Hair Fixer living time, place and intensity etc. in impact ground do not reach the degree of quantitative expectation.
Monitoring take the relative Changing Pattern of stress as core is the essence of danger of burst prediction with analyzing.Aspect dynamic stress scope, the relative quantitative observation that changes of region of high stress stress, also do not form system, reliable observation procedure, particularly under the deep-well condition, the emollescence of rock stratum is obvious, basic change has occured in its variation of stress, therefore is 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, pours into hydraulic oil in the flexible body of a sealing, and flexible body is inserted in the boring, and flexible body is provided with hydraulic pressure transducer, and hydraulic pressure transducer is connected on the pressure monitor outside the hole; When changing, drilling hole stress from pressure monitor record output stress data, draws relative Changing Pattern.Because this borehole stressmeter adopts flexibility to add carrier, when pressing reaction slow, can't observe immediately the stress state of rock mass, and of long duration leakage appears easily, pressure begins to descend, data are inaccurate; The data that measure besides are the stress of flexible body compression face vertical direction, can't determine the direction of compression face owing to insert when holing, so the data that obtain can not reacted real rock mass stress state, the control that press on impact ground can only be for referencial use; For example, when wanting to survey the pressure of vertical direction, in case the taseometer compression face is in horizontal direction, the stress state of rock mass does not just measure, and misses the chance of preventing and treating of impact ground pressure, causes mine accident.
The utility model content
The purpose of this utility model is the deficiency for existing borehole stressmeter, but designs a kind of active pressure-bearing type location drilling taseometer.
Technical scheme is, but a kind of active pressure-bearing type location drilling taseometer, it comprises a cylindrical shell, be full of the paste grease in the cylindrical shell, an end of cylindrical shell is provided with piston, and the other end is provided with the elasticity inductor, the elasticity inductor is provided with foil gauge, one side of cylindrical shell is provided with the rigidity bearing part, and the rigidity bearing part stretches in the cylindrical shell, and the rigidity bearing part should seal with the cylindrical shell contact site and contact; Fix an angular transducer at cylindrical shell.
For above-mentioned borehole stressmeter in use being protected and can pushing smoothly the boring deep, it also comprises one with the shell of conehead.
Using method of the present utility model is:
The first step, at first but active pressure-bearing type location drilling taseometer of the present utility model is bundled on the bamboo pole, push in the boring with bamboo pole, arrive set depth, the signal wire of angular transducer is connected with angel measuring instrument, rotate bamboo pole and by angel measuring instrument observation rotational angle, make the pressurized axis of rigidity bearing part consistent with the pressurized direction of precognition design, fixed;
Second step is connected the signal wire of foil gauge with pressure monitor; Then exert pressure to pressurizing piston, make the compression of paste grease, promote the rigidity bearing part and stretch out, thereby make the rigidity bearing part be adjacent to the wall of a borehole, and stop to exert pressure after the given original pressure value, install;
The 3rd step, As time goes on, the rock stratum deforms, the rigidity bearing part is pressed in the cylindrical shell, makes the compression of paste grease, thereby the elasticity inductor is exerted pressure, elasticity inductor compressive deformation, foil gauge sends deformation signal, pressure monitor continuous recording and output skew data, thus obtain the interior variation of stress of predicting direction of rock mass.
Good effect of the present utility model is:
1, because this instrument has initiatively pressure-bearing function, can in time judge the Changing Pattern of dynamic stress, the STRESS VARIATION situation of omnidistance dynamic quantitative monitoring hazardous location is for the danger of burst FORECAST AND PREVENTION provides reliable data.
2, according to the taseometer installation position, can carry out Continuous Observation to the STRESS VARIATION of precognition direction, be pressed with targetedly prevention with being convenient to impact.
Description of drawings
Below in conjunction with description of drawings enforcement of the present utility model.
Fig. 1 is the structure of the utility model embodiment 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, but a kind of active pressure-bearing type location drilling taseometer, it comprises cylindrical shell 1, be full of paste grease 2 in the cylindrical shell 1, an 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 the cylindrical shell 1, and rigidity bearing part 6 should seal with cylindrical shell 1 contact site and contact; It is fixed with angular transducer 7 at cylindrical shell 1.
For above-mentioned borehole stressmeter in use being protected and can pushing smoothly the boring deep, it also comprises one with the shell 12 of conehead.
Using method of the present utility model is,
The first step, at first but active pressure-bearing type location drilling taseometer of the present utility model is bundled on the bamboo pole, push in the boring 11 with bamboo pole, 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 consistent with the pressurized direction of precognition, fixed;
Second step is connected the signal wire 8 of foil gauge 5 with pressure monitor 9; Exert pressure then for 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 to exert pressure after the given original pressure value, install;
The 3rd step, As time goes on, the rock stratum deforms, rigidity bearing part 6 is pressed in the 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 and output skew data, thus obtain the interior variation of stress of predicting direction of rock mass.
Claims (2)
1. but pressure-bearing type location drilling taseometer initiatively, it is characterized in that, it comprises a cylindrical shell, be full of the paste grease in the cylindrical shell, an end of cylindrical shell is provided with piston, and the other end is provided with the elasticity inductor, the elasticity inductor is provided with foil gauge, one side of cylindrical shell is provided with the rigidity bearing part, and the rigidity bearing part stretches in the cylindrical shell, and the rigidity bearing part should seal with the cylindrical shell contact site and contact; Be fixed with angular transducer at cylindrical shell.
2. but active pressure-bearing type location drilling taseometer as claimed in claim 1 is characterized in that it also comprises one with the shell of conehead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526699 CN202869713U (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type borehole stress meter capable of positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526699 CN202869713U (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type borehole stress meter capable of positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869713U true CN202869713U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526699 Withdrawn - After Issue CN202869713U (en) | 2012-09-28 | 2012-09-28 | Active pressure-bearing type borehole stress meter capable of positioning |
Country Status (1)
| Country | Link |
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| CN (1) | CN202869713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914393A (en) * | 2012-09-28 | 2013-02-06 | 山东科技大学 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
| CN103335631A (en) * | 2013-07-02 | 2013-10-02 | 山东科技大学 | Online stratum movement monitoring device and method |
-
2012
- 2012-09-28 CN CN 201220526699 patent/CN202869713U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914393A (en) * | 2012-09-28 | 2013-02-06 | 山东科技大学 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
| CN102914393B (en) * | 2012-09-28 | 2014-10-29 | 山东科技大学 | Active pressure-bearing type positioning borehole stress meter and use method thereof |
| CN103335631A (en) * | 2013-07-02 | 2013-10-02 | 山东科技大学 | Online stratum movement monitoring device and method |
| CN103335631B (en) * | 2013-07-02 | 2016-04-06 | 山东科技大学 | A kind of rock movement on-Line Monitor Device and monitoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |