CN106285533A - A kind of fiber grating borehole stressmeter installation method in deep coal seam - Google Patents
A kind of fiber grating borehole stressmeter installation method in deep coal seam Download PDFInfo
- Publication number
- CN106285533A CN106285533A CN201610578991.0A CN201610578991A CN106285533A CN 106285533 A CN106285533 A CN 106285533A CN 201610578991 A CN201610578991 A CN 201610578991A CN 106285533 A CN106285533 A CN 106285533A
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- Prior art keywords
- glue
- coal seam
- boring
- borehole stressmeter
- borehole
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- 239000003245 coal Substances 0.000 title claims abstract description 110
- 238000009434 installation Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 102
- 239000011800 void material Substances 0.000 claims abstract description 7
- 239000004836 Glue Stick Substances 0.000 claims description 34
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of fiber grating borehole stressmeter installation method in deep coal seam, this installation method is borehole stressmeter and glue to be put in the boring in deep coal seam, the void space between borehole stressmeter and boring filled by glue, the glue solidifies forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from the stress disturbance outside coal seam.Hardness after the glue curing used in the fiber grating borehole stressmeter of the present invention installation method in deep coal seam is close with the hardness of coal bed texture, the borehole stressmeter being tied by this glue and coal seam can be fitted tightly, thus ensure that the seriality that stress of coal seam transmits, make measurement structure truer, accurate, go for the various application scenario needing realization measurement sensor and measured hole to be in close contact.
Description
Technical field
The present invention relates to optical fiber sensing technology, be related specifically to the peace for the borehole stressmeter of monitoring coal petrography stress in real time
Dress method.
Background technology
China is world's first coal power, and along with superficial part seam mining is complete, China's coal-mine exploitation progresses into deep
The field of exploitation, after mining depth is more than 600 meters, owing to stratum gravity causes the high stress concentration zone of tunnel, work surface
Territory gets more and more, so that coal rock dynamic disaster is more and more frequent.Owing to coal rock dynamic disaster is that coal petrography is heavily stressed in the external world
Act on a kind of phenomenon with dynamic effect and disaster consequence occurred in the lower short time, it breed, formed and occur all the time
Discharge closely related with coal and rock stress and energy accumulation.Therefore coal petrography ess-strain rule is grasped, real by borehole stressmeter
Time monitoring coal petrography stress state, can effectively mine motive force disaster be carried out early warning, minimizing accident occurs.
In prior art, the installation method of borehole stressmeter mainly has packet mode direct insertion, oily and grouting formula.Wherein, direct insertion
Installation method be in coal seam position to be measured boring, then stressometer is directly inserted in coal seam, although the method
Simply, but owing to the size of borehole stressmeter own is less than boring aperture so that itself and around there is gap between coal seam,
Tightly cannot fit with coal seam, when STRESS VARIATION conduction is to monitoring site, the drilled malformation of actual stress own unloads,
, always less than actual stress, even there is the situation that measured value is 0, and unloaded stress is with boring in the surveyed stress of borehole stressmeter
Structure and the neighbouring geological structure in hole have relation, it is impossible to its quantitative Analysis, thus can not use this stress of algorithm compensation, cause
Make borehole stressmeter measurement result less than normal, cause early warning to delay, the most unforeseen casualties.
The installation method of oil packet mode is to be wrapped in by sensor among oil bag, and sensor inserts in boring, by oil bag
Refueling, the mode causing oil bag to expand realizes the close contact of boring and sensor, to make up between borehole stressmeter and coal seam
Gap, but the method also exists leakage of oil and needs the problems such as long term maintenance.
The installation method of grouting formula is after sensor is installed to boring, is noted by the flowing materials such as cement by pulp shooting machine
Entering in boring, owing to drilling depth is up to about 10 meters, there is the air of residual in foot of hole after whitewashing, due to empty in boring
The pressure of gas causes whitewashing fluid can not enter into foot of hole, and whitewashing fluid can not be completely covered sensor, the most only cover
The end section of sensor, it is impossible to sensor close contact with coal seam is completely secured, and measurement effect is compared in actual use
Compared with direct insertion almost without improvement.Further, since use grouting formula installation method, fully wrapped around firmly biography after whitewashing fluid sets
The signal-transmitting cable of sensor, feed cable, or Transmission Fibers, when causing the coal seam near boring that fracture development occurs,
Signal-transmitting cable, feed cable, or Transmission Fibers easily fractures, and cannot repair after fractureing.
Summary of the invention
Patent of the present invention aim to overcome that above-mentioned the deficiencies in the prior art, it is provided that a kind of fiber grating boring
Stressometer installation method in deep coal seam.The fiber grating borehole stressmeter installation method of the present invention is wanted to accomplish operation letter
Single, it is ensured that borehole stressmeter and coal seam fit tightly, it is ensured that the seriality of stress of coal seam transmission so that measurement result accurately may be used
Lean on.
In order to reach foregoing invention purpose, the technical scheme that patent of the present invention provides is as follows:
A kind of fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method is to hole
Stressometer and glue are put in the boring in deep coal seam, and glue fills the void space between borehole stressmeter and boring, glue
Solidifying and borehole stressmeter and coal seam are formed a stress entirety, borehole stressmeter is measured truly from the stress outside coal seam
Disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；Preparing glue stick, this glue stick is built with glue；In the front end of borehole stressmeter equipped with nail, nail is used for puncturing glue
Rod is so that glue flows out, and the rear end of borehole stressmeter is equipped with flexible baffle, and flexible baffle is for stopping the backflow of glue；
Second step, utilizes installation tool glue stick and borehole stressmeter to be fed through in boring, before glue stick is placed in borehole stressmeter
Hold to deliver to the bottom of boring, installation tool is exited；
3rd step, utilizes a mounting rod to withstand borehole stressmeter, continues to push away forward borehole stressmeter, until the end makes to bore
The nail of stressometer front end, hole punctures described glue stick, and the glue in glue stick oozes out, and part glue infiltrates into space, coal seam, part
The space between borehole stressmeter and boring filled by glue, from the flexible gear of the glue drilled stressometer rear end of boring internal reflux
Plate stops, unnecessary glue is deep in coal seam；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
A kind of fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method be by
Borehole stressmeter and glue are put in the boring in deep coal seam, and the void space between borehole stressmeter and boring filled by glue,
The glue solidifies forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from outside coal seam
Stress disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；Preparing glue stick, this glue stick is built with glue and borehole stressmeter；
Second step, utilizes installation tool first a sharp instrument to be put into foot of hole, then will be enclosed with borehole stressmeter
Glue stick is fed through in boring；
3rd step, utilizes installation tool persistently to push glue stick and advances so that glue stick front end contacts with sharp instrument and punctures this glue
Rod, the glue in glue stick oozes out, and part glue infiltrates into space, coal seam, and part glue is filled between borehole stressmeter and boring
Space；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
A kind of fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method be by
Borehole stressmeter and glue are put in the boring in deep coal seam, and the void space between borehole stressmeter and boring filled by glue,
The glue solidifies forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from outside coal seam
Stress disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；
Second step, utilizes installation tool by the bottom of borehole stressmeter to described boring；
3rd step, the booster that will be equipped with glue injects glue in boring, injects part glue and infiltrate into space, coal seam, part
The space between borehole stressmeter and boring filled by glue, and booster is exited after pushing by glue in time；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
Based on technique scheme, the fiber grating borehole stressmeter of the present invention installation method in deep coal seam and existing skill
Art is compared has following technological merit:
1, hard due to after the glue curing that uses in the fiber grating borehole stressmeter of the present invention installation method in deep coal seam
Spend close with the hardness of coal bed texture so that the borehole stressmeter being tied by this glue and coal seam can fit tightly, from
And ensure that the seriality that stress of coal seam transmits.
2, due to glue, there is the characteristic of expansion, the rock-steady structure formed after solidification, eliminate original boring to coal
The pressure-relief effect of ply stress, solves original borehole stressmeter and measures no data or measured value always asking less than actual value
Topic so that measurement structure is truer, accurately.
3, the equipment used in the installation method of patent of the present invention and frock are simple, install easy to operate, and measure knot
Fruit is accurately and reliably.
4, the installation method of patent of the present invention goes for various needs realization measurement sensor and measured hole closely connects
The application scenario touched, such as microseism, the acoustic emission sensor installation in coal seam, reduces owing to there is the energy that contact interface causes
Amount reduces sharply, and improves the measuring precision.
Accompanying drawing explanation
Fig. 1 is the placement side of the present invention a kind of fiber grating borehole stressmeter installation method embodiment 1 in deep coal seam
Formula schematic diagram.
Detailed description of the invention
We combine accompanying drawing and specific embodiment carrys out the fiber grating borehole stressmeter to patent of the present invention deeply below
Installation method in coal seam is described in further detail, and in the hope of being more fully apparent from understands its structure composition and work side
Formula, but the protection domain of patent of the present invention can not be limited with this.
Embodiment 1
Fig. 1 is the structural representation of the embodiment of the present invention 1, as it can be seen, in the installation method of the borehole stressmeter of the present invention, bag
Include borehole stressmeter 101, glue 102, glue stick 103, flexible baffle 104 and nail 105.Wherein glue 102 is placed on glue stick 103
In, flexible baffle 104 is arranged on the afterbody of borehole stressmeter 101, and nail 105 is arranged on the front end of borehole stressmeter 101.Its
In, described glue stick structure is thin film, and it is negligible for the impact of optical fiber optical grating stress sensing.Described glue
Water is formed with the volume ratio stirring of 1:1 by resin and catalyst, and this glue can be with the fine crack of rapid osmotic coal and rock, its solidification
After hardness close with the hardness of coal bed texture.The size of described flexible baffle is bigger than boring bore.
Glue stick equipped with glue is positioned at the front equipped with the borehole stressmeter of nail, the front end, borehole stressmeter and glue stick is used
Installation tool is sent in boring, and when borehole stressmeter and glue stick arrive foot of hole, installation tool exits, by installing masthead
Living borehole stressmeter, continue to push away forward borehole stressmeter, shift the end always onto, now the nail of borehole stressmeter front end can puncture
Glue stick, glue oozes out, and part glue infiltrates into space, coal seam, and it is empty that the space between borehole stressmeter and boring filled by part glue
Between, and backflow glue can be blocked by flexible baffle.Glue can solidify, and can expand in process of setting, it is ensured that bores
Hole stressometer and coal seam realize fully being in close contact, and after in coal seam, glue solidifies completely, borehole stressmeter and coal seam then can shapes
Become a stress entirety, when coal seam is by from outside stress disturbance, then that borehole stressmeter just can be the sensitiveest, true
Measure actual loading size.
Embodiment 2
First a thin blade (or other sharp-pointed devices) is inserted into the bottom of boring, now borehole stressmeter be positioned at containing
In the glue stick of glue, by installation tool, above-mentioned glue stick is sent in boring, when arriving foot of hole, due to the existence of blade,
Can glue stick be cut, glue flows out, after the glue solidifies, it is possible to realize combining closely of borehole stressmeter and coal seam, it is achieved
The seriality of stress of coal seam transmission.
Embodiment 3
First borehole stressmeter is inserted into the bottom of boring, then in boring, pushes glue with the booster equipped with glue,
Should ensure that the glue in booster enough fills up the gap of borehole stressmeter and surrounding coal seam, when otherwise secondary pushes glue, can
Air can be had to enter, after pushing glue, should in time booster be exited, when pushing after the glue solidifies, equally realize coal
The seriality of ply stress transmission so that measurement result is true, accurately.
It is more than several the concrete example application of the present invention, it is also possible to specifically need according to other be changed and adjust
Whole, the general thought without departing from installation method of the present invention is just belonging to its protection category.Sum it up, present invention boring should
The protection domain of the installation method of power meter also includes other changes that it will be apparent to those skilled in the art that and replacement.
Claims (3)
1. the fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method is to bore
Hole stressometer and glue are put in the boring in deep coal seam, and glue fills the void space between borehole stressmeter and boring, glue
Water-setting is solid forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from answering outside coal seam
Force-disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；Preparing glue stick, this glue stick is built with glue；In the front end of borehole stressmeter equipped with nail, nail is used for puncturing glue
Rod is so that glue flows out, and the rear end of borehole stressmeter is equipped with flexible baffle, and flexible baffle is for stopping the backflow of glue；
Second step, utilizes installation tool glue stick and borehole stressmeter to be fed through in boring, before glue stick is placed in borehole stressmeter
Hold to deliver to the bottom of boring, installation tool is exited；
3rd step, utilizes a mounting rod to withstand borehole stressmeter, continues to push away forward borehole stressmeter, until the end makes to bore
The nail of stressometer front end, hole punctures described glue stick, and the glue in glue stick oozes out, and part glue infiltrates into space, coal seam, part
The space between borehole stressmeter and boring filled by glue, from the flexible gear of the glue drilled stressometer rear end of boring internal reflux
Plate stops, unnecessary glue is deep in coal seam；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
2. the fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method is to bore
Hole stressometer and glue are put in the boring in deep coal seam, and glue fills the void space between borehole stressmeter and boring, glue
Water-setting is solid forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from answering outside coal seam
Force-disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；Preparing glue stick, this glue stick is built with glue and borehole stressmeter；
Second step, utilizes installation tool first a sharp instrument to be put into foot of hole, then will be enclosed with borehole stressmeter
Glue stick is fed through in boring；
3rd step, utilizes installation tool persistently to push glue stick and advances so that glue stick front end contacts with sharp instrument and punctures this glue
Rod, the glue in glue stick oozes out, and part glue infiltrates into space, coal seam, and part glue is filled between borehole stressmeter and boring
Space；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
3. the fiber grating borehole stressmeter installation method in deep coal seam, it is characterised in that this installation method is to bore
Hole stressometer and glue are put in the boring in deep coal seam, and glue fills the void space between borehole stressmeter and boring, glue
Water-setting is solid forms a stress entirety by borehole stressmeter and coal seam, and borehole stressmeter is measured truly from answering outside coal seam
Force-disturbance, the method includes following installation steps in detail:
The first step, drills out boring in deep coal seam, and this boring is for placing borehole stressmeter to measure the outside that coal seam receives
Stress disturbance；
Second step, utilizes installation tool by the bottom of borehole stressmeter to described boring；
3rd step, the booster that will be equipped with glue injects glue in boring, injects part glue and infiltrate into space, coal seam, part
The space between borehole stressmeter and boring filled by glue, and booster is exited after pushing by glue in time；
4th step, described glue viscosity is little, and the hardness of the hardness Approaching Coal Seam after solidification, glue generation chemical reaction temperature is low
In 120 DEG C, the coefficient of cubical expansion in process of setting is more than 1.5 times, and the diameter of described flexible baffle is slightly larger than the aperture of boring；
After the glue in boring and coal seam solidifies completely, borehole stressmeter and coal seam form a stress entirety, complete drilling hole stress
The installation in the borehole of meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578991.0A CN106285533B (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of fiber grating borehole stressmeter in deep coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578991.0A CN106285533B (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of fiber grating borehole stressmeter in deep coal seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285533A true CN106285533A (en) | 2017-01-04 |
| CN106285533B CN106285533B (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610578991.0A Active CN106285533B (en) | 2016-07-22 | 2016-07-22 | A kind of installation method of fiber grating borehole stressmeter in deep coal seam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181027A (en) * | 2018-01-05 | 2018-06-19 | 北京科技大学 | A kind of type vibration wire borehole stressmeter mounting head |
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| CN201653597U (en) * | 2010-01-16 | 2010-11-24 | 中国矿业大学 | Pressure monitoring unit for mine mined out spaces |
| CN101963555A (en) * | 2010-08-19 | 2011-02-02 | 天地科技股份有限公司 | Anchor rod or anchor rope support stress test method and device |
| CN103454020A (en) * | 2013-08-15 | 2013-12-18 | 中国矿业大学 | Surrounding rock stress online monitoring system and method based on fiber grating borehole stressometer |
| CN103528712A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Method for monitoring temperature of coal mine shaft freezing wall in real time on basis of fiber bragg grating sensing |
| CN103883278A (en) * | 2014-03-31 | 2014-06-25 | 新疆通奥油田技术服务有限公司 | Downhole type well fixing cement slurry rapid solidification device |
| US20140202698A1 (en) * | 2012-03-09 | 2014-07-24 | Halliburton Energy Services, Inc. | Set-Delayed Cement Compositions Comprising Pumice and Associated Methods |
| CN104748897A (en) * | 2015-03-15 | 2015-07-01 | 中国矿业大学 | In-situ mining-induced stress monitoring method and device for underground workface of coal mine |
| CN104863944A (en) * | 2014-02-25 | 2015-08-26 | 曹俏峰 | Expansion screw with colloid |
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2016
- 2016-07-22 CN CN201610578991.0A patent/CN106285533B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653597U (en) * | 2010-01-16 | 2010-11-24 | 中国矿业大学 | Pressure monitoring unit for mine mined out spaces |
| CN101963555A (en) * | 2010-08-19 | 2011-02-02 | 天地科技股份有限公司 | Anchor rod or anchor rope support stress test method and device |
| US20140202698A1 (en) * | 2012-03-09 | 2014-07-24 | Halliburton Energy Services, Inc. | Set-Delayed Cement Compositions Comprising Pumice and Associated Methods |
| CN103454020A (en) * | 2013-08-15 | 2013-12-18 | 中国矿业大学 | Surrounding rock stress online monitoring system and method based on fiber grating borehole stressometer |
| CN103528712A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Method for monitoring temperature of coal mine shaft freezing wall in real time on basis of fiber bragg grating sensing |
| CN104863944A (en) * | 2014-02-25 | 2015-08-26 | 曹俏峰 | Expansion screw with colloid |
| CN103883278A (en) * | 2014-03-31 | 2014-06-25 | 新疆通奥油田技术服务有限公司 | Downhole type well fixing cement slurry rapid solidification device |
| CN104748897A (en) * | 2015-03-15 | 2015-07-01 | 中国矿业大学 | In-situ mining-induced stress monitoring method and device for underground workface of coal mine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181027A (en) * | 2018-01-05 | 2018-06-19 | 北京科技大学 | A kind of type vibration wire borehole stressmeter mounting head |
| CN108181027B (en) * | 2018-01-05 | 2023-10-13 | 北京科技大学 | Vibrating wire type drilling stress meter mounting head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106285533B (en) | 2018-09-21 |
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