CN108050982A - A kind of method for monitoring coal body transversely deforming on-line - Google Patents
A kind of method for monitoring coal body transversely deforming on-line Download PDFInfo
- Publication number
- CN108050982A CN108050982A CN201711016820.XA CN201711016820A CN108050982A CN 108050982 A CN108050982 A CN 108050982A CN 201711016820 A CN201711016820 A CN 201711016820A CN 108050982 A CN108050982 A CN 108050982A
- Authority
- CN
- China
- Prior art keywords
- bail
- fluid pressure
- pressure type
- lateral displacement
- anchor ring
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of methods for monitoring coal body transversely deforming on-line, belong to coal mine rock burst prevention, rock body quality of mine deformation monitoring field, the data processing unit including being located on well, at least one measuring unit positioned at the data transfer unit of working face and in drilling；Measuring unit includes fluid pressure type lateral displacement analyzer, fixing clasp and push rod, fixing clasp is hollow ring structure, including anchor ring and cavity, anchor ring is provided with circuit port close to outside, at least one bail and guide groove with matching are laid on anchor ring, bail slid clockwise, the sharp portion of bail can stretch out anchor ring in the guide groove, step is provided at bail slid clockwise direction, shape is at a certain angle between the bottom and bail of step.The same drilling of the present invention can lay multiple devices, not only realized a hole multiple spot while monitored but also solve the problems, such as that monitoring point interferes with each other, and data are accurate and effective.
Description
The application be applicant University Of Science and Technology Of Shandong to the applying date that State Intellectual Property Office submits be January 22 in 2016
Day, Application No. 201610044914.7, a kind of entitled on-line monitoring coal body transversely deforming device and its monitoring method
Application for a patent for invention divisional application.
Technical field
The present invention relates to coal mine rock burst prevention, rock body quality of mine deformation monitoring fields, and in particular to a kind of on-line monitoring
The method of coal body transversely deforming.
Background technology
In mine working face exploitation process, coal body is subject to the effect of mine pressure, and there may be bump accident, tunnels
Deformation is serious, and the life security of safety in production and staff to working face causes greatly to threaten.Coal body transversely deforming is
The important references condition whether one of the phenomenon that strata behaviors and differentiation bump occur.Since coal body can be adopted, by
Back production goods is big to influencing, it is desirable that data monitoring interval time is short, because of a kind of on-line monitoring coal body transversely deforming device pair of the invention
Studying Controlling of Coal Outburst has important practice significance.
At present, lot of domestic and international scholar has developed some device and methods, patent to detection coal face coal deformation
201310127426.9 disclosures " coal face coal dilatation detector and detection method ", the detector meter detection method are profits
It is subject to (with displacement scale line) relative displacement of coal deformation generation with the large and small diameter steel pipe being fixed in drilling to realize pair
Coal deformation is characterized, it, can not be real-time although the detector and detection method can monitor coal deformation amount at different moments
Data are recorded, staff can only be leaned on to read data at different moments；Patent 20141037533.9 proposes " work face goaf
Coal body width of plastic zone monitoring and determination method ", this method in non-back production side horizontal drilling by laying borehole stressmeter, prison
Each measuring point stress variation is surveyed, determines coal body plastic zone width, this method is to judge coal by monitor stress change curve type
The damage envelope of body, it is impossible to the monitoring of performance coal body transversely deforming amount directly perceived and a hole multiple spot；Patent 201410379987.2 is public
It has opened a kind of quantitative observation of impact coal-mass dilatation amount and has determined method, respectively one stress of installation in three horizontal observation drillings
Observation device and two displacement observation devices record coal seams are vertical, lateral displacement amount, obtains the dilatation amount of each monitoring point, this method
Quantities is big, cumbersome.
In conclusion existing device and method it is different drilling complete, influence factor is more, measured result have it is larger from
Dissipate property.
The content of the invention
For above device there are the problem of, the present invention propose it is a kind of monitor on-line coal body transversely deforming method, should
Method can realize a hole multiple spot, monitoring, data are accurate and effective in real time.
One of task of the present invention is to provide a kind of on-line monitoring coal body transversely deforming device.
It is a kind of on-line monitoring coal body transversely deforming device, including be located on well data processing unit, positioned at working face
Data transfer unit and at least one measuring unit in drilling；
The measuring unit includes fluid pressure type lateral displacement analyzer, fixing clasp and push rod, and the fixing clasp connects
The front end of the fluid pressure type lateral displacement measurement instrument is connected on, the push rod is used for the fixing clasp and fluid pressure type transverse direction position
It moves analyzer and pushes to pilot to be measured, the fixing clasp is hollow ring structure, and including anchor ring and cavity, the anchor ring is close
Outside is provided with circuit port, and at least one bail and guide groove with matching, the card are laid on the anchor ring
Nail can be arranged on the inside of anchor ring, the sharp portion of the bail in slid clockwise, the head of the bail in the guide groove
The anchor ring is stretched out, step, shape between the bottom of the step and the bail are provided at bail slid clockwise direction
It is at a certain angle；
The data transfer unit includes control box and circuit, and one end of the circuit is connected to the fluid pressure type transverse direction position
On shift measurement instrument, the other end is connected in control box, and the other end of the control box passes through connection to the data processing
Unit；Data converter is provided in the control box, the data converter is used for fluid pressure type lateral displacement analyzer
It monitors obtained displacement and is converted to electric signal transmission to the data processing unit.
The direct advantageous effects that above-mentioned technical proposal is brought are：
Fluid pressure type lateral displacement analyzer in measuring unit is fixed by fixing clasp, and device is made to be fused into coal body
One entirety is avoided when being fixed using elasticity " pawl " and bending, illusive phenomenon occurs.
The structure of fixing clasp is simple, practical, by rotation realization suitable, counterclockwise and the combination of coal body and separates, from
And realize the installation and recycling to device.
As the preferred embodiment of the present invention, the angle between the bottom of the step and the bail is 30~60 °.
Bail slides in guide groove, when slid clockwise is at step, under the resistance of step, can be fixed on step
Place, further sharp portion are stretched into the coal body of side.
As another preferred embodiment of the present invention, the data processing unit is computer.
Preferably, there are three the bail is set.
Preferably, setting is fluted at the cavity wall, is set at the preceding paragraph header of the fluid pressure type lateral displacement analyzer
It is equipped with the clamp with groove cooperation.
Preferably, supporting plate, the control box are additionally provided on the outermost sleeve of fluid pressure type lateral displacement analyzer
Inside it is provided with the switch that the supporting plate is controlled to lift.
Preferably, the measuring unit in the drilling is provided with 2~3 simultaneously.
Another task of the present invention is to provide the method for on-line monitoring coal body transversely deforming, comprises the following steps successively：
A selects monitoring face, and drills through drilling according to coal seam geological condition；
Measuring unit needed for b installation monitorings,
The measuring unit includes fluid pressure type lateral displacement analyzer, fixing clasp and push rod, and the fixing clasp is
Hollow ring structure, including anchor ring and cavity, the anchor ring is provided with circuit port close to outside, is laid on the anchor ring
At least one bail and guide groove with matching, the bail can in the guide groove slid clockwise, the bail
Head be arranged on the inside of anchor ring, the sharp portion of the bail stretches out the anchor ring, is set at bail slid clockwise direction
Step is equipped with, shape is at a certain angle between the bottom of the step and the bail；
Fixing clasp is mounted on to the front end of the fluid pressure type lateral displacement analyzer, it is horizontal that push rod is mounted on fluid pressure type
Fixing clasp and fluid pressure type lateral displacement analyzer are sent to drilling and treated to the rear end of determining displacement instrument, and using push rod
Test point rotates clockwise push rod, while bail is slided along guide groove and step, is fastened on step and is slowly hammered into coal body
It is interior, fixing clasp and fluid pressure type lateral displacement analyzer are fixed；If measuring unit is sent successively in this order there are one more than
Pilot to be measured in drilling；
C layout data processing units on well, in working face layout data transmission unit, the data transfer unit includes
One end of circuit is connected on fluid pressure type lateral displacement measurement instrument by control box and circuit, and the other end is connected in control box, will
The other end of control box is connected by connection with data processing unit, and data converter is set in control box,
D is monitored, and the displacement that fluid pressure type lateral displacement analyzer monitors is converted to electric signal and passed by data converter
Transport to the data processing unit；
After the completion of e monitorings, push rod is rotated counterclockwise, loosening bail, it is horizontal that ecto-entad takes out each fluid pressure type successively
Determining displacement instrument.
Compared with prior art, the present invention has following advantageous effects：
(1) same drilling can lay multiple devices, not only realized a hole multiple spot while monitored but also solve monitoring point phase
Mutually the problem of interference；
(2) the data obtained has more comparativity under identical conditions, is conducive to analyze；
(3) monitoring device is laid in bore inner completely, avoids tunnel expansion side and causes to monitor disruption；
(4) using real time on-line monitoring, more, more accurately data can be captured；
(5) the mechanical fixing clasp and automatically controlled fixed pallet proposed realizes the fixation and liberation to device, and passes through
The recycling of push rod realization device, saves monitoring cost.
Description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of present invention on-line monitoring coal body transversely deforming device；
Fig. 2 is fixing clasp part-structure schematic diagram；
Fig. 3 is measuring unit and data processing unit part-structure schematic diagram；
Fig. 4 is push rod part-structure schematic diagram；
In figure, 1, fixing clasp, 1.1, guide groove, 1.2, bail, 1.3, step, 1.4, circuit port, 2, fluid pressure type it is horizontal
To determining displacement instrument, 2.1, front end, 2.2, inner cylinder, 2.3, outer shell, 2.4, bottom, 2.5, connection jaws, 2.6, supporting plate, 3, control
Line, 4, transmission line, 5, control box, 5.1, data converter, 5.2, switch, 6, computer, 7, push rod.
Specific embodiment
It elaborates with reference to specific embodiment to the present invention.
The present invention, it is a kind of on-line monitoring coal body transversely deforming device, including be located on well data processing unit, positioned at work
Make the data transfer unit in face and at least one measuring unit in drilling.
As shown in figures 1 and 3, data processing unit is computer 6, and data transfer unit includes control box 5, control line 3
With transmission line 4, control box 5 is internally provided with data converter 5.1 and switch 5.2, and data converter 5.1 is connected by transmission line 4
It is connected on fluid pressure type lateral displacement analyzer 2, switch 5.2 is connected by transmission line 4 with supporting plate 2.6, and the other end of control box 5 leads to
It crosses the connection of transmission line 4 and leads computer 6, data converter extremely calculates the displacement transmission measured on fluid pressure type lateral displacement analyzer
Machine is observed and handles.
Since the structure and its circuit of measuring unit of the present invention are simple, the present invention can place multiple surveys in drilling
Measure unit.Each measuring unit, the fixing clasp including fluid pressure type lateral displacement analyzer 2 and at its front end 2.1 are fixed
The effect of snap ring is fluid pressure type lateral displacement analyzer 2 is fixed, moreover, fixing clasp can collect circuit in circuit
At port 1.4, the problem of coiling is complicated in the prior art is avoided, the structure of fixing clasp 1 is as shown in Fig. 2, it is hollow ring
Body is made of two concentric but anisodiametric annulus, be cavity at the center of fixing clasp 1, two annulus are formed
Face for anchor ring, fixing clasp internal diameter is identical with the diameter of fluid pressure type lateral displacement analyzer, is D1, outer annular diameter is with drilling
Diameter is identical, is D2；
The edge of anchor ring is provided with circuit port 1.4, at least one bail 1.2 and therewith phase are laid on anchor ring
The guide groove 1.1 of cooperation shows three bails 1.2 and three guide grooves 1.1 in Fig. 2, and bail 1.2 can be in guide groove 1.1
Slid clockwise, the head of bail are arranged on the inside of anchor ring, and the sharp portion of bail stretches out anchor ring, in bail slid clockwise side
Place is provided with step 1.3,30~60 ° of angle is formed between the bottom and bail of step 1.3；1.2 sharp portion of bail stretches out
The outside of anchor ring, when rotating clockwise push rod, fixing clasp is with rotation, and bail is simultaneously along guide groove 1.1 and step 1.3
It slides, slowly hammers into coal body, fix fluid pressure type lateral displacement analyzer front end 2.1；Threading opening 1.4 is located at fixing clasp 1
Upper left side, can not only cross line but also protect circuit.
As shown in figure 3, fluid pressure type lateral displacement analyzer 2 includes front end 2.1, inner cylinder 2.2, outer shell 2.3, bottom 2.4, connects
Line mouth 2.5 and fixed pallet 2.6, front end 2.1, inner cylinder 2.2, outer shell 2.3, bottom 2.4 are cylinder, and front end 2.1 is with fixing
Snap ring 1 is connected, and rear end 2.4 is connected with control line 3, transmission line 4,2.2 diameter ＜ outer shells of inner cylinder, 2.3 diameter ＜ bottoms, 2.4 diameter.
2 front end of fluid pressure type lateral displacement analyzer, 2.1 a diameter of D1, lower part has and can be inlayed with 1 inner ring card slot of fixing clasp
Embedding protrusion；
Inner cylinder 2.2 can stretch in outer shell 2.3, and distance of stretch out and draw back 1m, when flexible, internal oil pressure, which changes, makes position
It moves sensing chip and generates signal；
The sensing unit lifted in bottom 2.4 containing displacement sensing chip and control supporting plate 2.6；
Connection jaws 2.5 are transmission line 4 and control line 3 and the connecting points of bottom 2.4；
Supporting plate 2.6 can be realized through control switch 5.2 and lifted, and then fastened and separated with drill hole inner wall, be reached to bottom
2.4 fixing and unclasp.
As shown in figure 3,5 squarely of control box, including data converter 5.1 and control switch 5.2, data converter 5.1
It realizes that being converted into electric signal to monitoring displacement is passed to computer 6, and controls the lifting of 5.2 control supporting plate 2.6 of switch.
As shown in figure 4, push rod 7 is marked with scale, front end 7.1 can be with the bottom 2.4 of fluid pressure type lateral displacement analyzer 2
It is connected, the main placement for realizing fluid pressure type lateral displacement analyzer 2, position adjustment.
The present invention monitors the monitoring method of coal body transversely deforming device on-line, comprises the following steps：
The first step：According to coal seam geological condition, select monitoring face and laying, drill through drilling；
Second step：Fixing clasp 1 is inlayed with 2 front end 2.1 of fluid pressure type lateral displacement analyzer it is integral, push rod 7
Front end 7.1 is connected with fluid pressure type lateral displacement analyzer rear end 2.4；
3rd step：Fixing clasp 1, fluid pressure type lateral displacement analyzer 2 are pushed to drilling setting position using push rod 7
If (multiple measuring points are laid in a hole, are pushed successively using push rod 7, control line 3 and transmission line 4 can be walked by circuit port 1.4
Go out drilling), push rod 7 is rotated clockwise, bail 1.2 is slided along guide groove 1.1 and step 1.3, slowly hammered into coal body simultaneously,
Fix fluid pressure type lateral displacement analyzer front end 2.1；
4th step：Control switch 5.2 is opened, fixed pallet 2.6 is risen, fixes fluid pressure type lateral displacement analyzer bottom
2.4；
5th step：Each circuit is connected, starts to monitor；
6th step：After monitoring, push rod 7 rotates counterclockwise, and loosening bail 1.2, ecto-entad takes out each liquid successively
Pressure type lateral displacement analyzer 2 completes monitoring.
It should be noted that those skilled in the art are made under the introduction of this specification any equivalent way or
Obvious variant should all be within the scope of the present invention.
Claims (1)
- A kind of 1. method for monitoring coal body transversely deforming on-line, which is characterized in that comprise the following steps successively：A selects monitoring face, and drills through drilling according to coal seam geological condition；Measuring unit needed for b installation monitorings,The measuring unit includes fluid pressure type lateral displacement analyzer, fixing clasp and push rod, and the fixing clasp is hollow Loop configuration, including anchor ring and cavity, the anchor ring is provided with circuit port close to outside, is laid at least on the anchor ring One bail and guide groove with matching, the bail can in the guide groove slid clockwise, the head of the bail Portion is arranged on the inside of anchor ring, and the sharp portion of the bail stretches out the anchor ring, is provided at bail slid clockwise direction Step, shape is at a certain angle between the bottom of the step and the bail；Fixing clasp is mounted on to the front end of the fluid pressure type lateral displacement analyzer, push rod is mounted on fluid pressure type transverse direction position The rear end of analyzer is moved, and using push rod is sent fixing clasp and fluid pressure type lateral displacement analyzer to be tested to drilling Point rotates clockwise push rod, while bail is slided along guide groove and step, is fastened on step and is slowly hammered into coal body, Fixing clasp and fluid pressure type lateral displacement analyzer to be fixed；If measuring unit there are one more than, send successively in this order to Pilot to be measured in drilling；C layout data processing units on well, in working face layout data transmission unit, the data transfer unit includes control One end of circuit is connected on fluid pressure type lateral displacement analyzer by box and circuit, and the other end is connected in control box, will be controlled The other end of box is connected by transmission line with data processing unit, and data converter is set in control box,D is monitored, and the displacement that fluid pressure type lateral displacement analyzer monitors is converted to electric signal transmission extremely by data converter The data processing unit；After the completion of e monitorings, push rod is rotated counterclockwise, loosening bail, ecto-entad takes out each fluid pressure type lateral displacement successively Analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016820.XA CN108050982B (en) | 2016-01-22 | 2016-01-22 | A method of on-line monitoring coal body transversely deforming |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044914.7A CN105588539B (en) | 2016-01-22 | 2016-01-22 | One kind on-line monitoring coal body transversely deforming device and its monitoring method |
| CN201711016820.XA CN108050982B (en) | 2016-01-22 | 2016-01-22 | A method of on-line monitoring coal body transversely deforming |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610044914.7A Division CN105588539B (en) | 2016-01-22 | 2016-01-22 | One kind on-line monitoring coal body transversely deforming device and its monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108050982A true CN108050982A (en) | 2018-05-18 |
| CN108050982B CN108050982B (en) | 2019-10-18 |
Family
ID=55928301
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711016820.XA Active CN108050982B (en) | 2016-01-22 | 2016-01-22 | A method of on-line monitoring coal body transversely deforming |
| CN201610044914.7A Active CN105588539B (en) | 2016-01-22 | 2016-01-22 | One kind on-line monitoring coal body transversely deforming device and its monitoring method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610044914.7A Active CN105588539B (en) | 2016-01-22 | 2016-01-22 | One kind on-line monitoring coal body transversely deforming device and its monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108050982B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121100B (en) * | 2017-04-14 | 2020-03-10 | 山东李楼煤业有限公司 | Monitoring method for coal body creep in coal seam |
| CN107560590A (en) * | 2017-09-21 | 2018-01-09 | 中国矿业大学(北京) | A kind of mobile coal rock mass deformation monitoring system and its monitoring method |
| CN109975180B (en) * | 2019-04-18 | 2021-06-25 | 龙岩学院 | Goaf resistance coefficient testing device and method under impact load |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196289Y (en) * | 1994-05-06 | 1995-05-03 | 中国科学院地质研究所 | Piston type multi-point extensometer |
| JP2010139348A (en) * | 2008-12-11 | 2010-06-24 | Sato Kogyo Co Ltd | Underground displacement observation device and method |
| CN103207418A (en) * | 2012-02-10 | 2013-07-17 | 安徽理工大学 | Coal mass volume-expanding detector for coal face and detection method |
| CN104101313A (en) * | 2014-08-04 | 2014-10-15 | 山东科技大学 | Method for quantitative observation determination of impact coal body volume expansion |
| CN104265364A (en) * | 2014-07-31 | 2015-01-07 | 天地科技股份有限公司 | Monitoring determining method for working face goaf lateral coal plastic area width |
| CN204402467U (en) * | 2014-12-30 | 2015-06-17 | 晋能集团有限公司 | A kind of mining intrinsic safety type multiple position extensometer |
| CN204646274U (en) * | 2015-03-01 | 2015-09-16 | 何文杰 | A kind of bidirectional hydraulic landing leg rod |
| CN105179018A (en) * | 2015-10-16 | 2015-12-23 | 辽宁工程技术大学 | Detection method for coal mine rock burst |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201012439Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Positioner for square tubes soldering |
| KR100761934B1 (en) * | 2007-07-23 | 2007-09-28 | 주식회사 동우기술단 | Bridge safety examination system |
| CN101408420A (en) * | 2008-11-27 | 2009-04-15 | 山东科技大学 | Strip bearing block long term monitoring method |
| DE102011015081B4 (en) * | 2011-03-24 | 2019-05-23 | Hochschule für Technik und Wirtschaft | Sensor fiber and sensor fiber arrangement |
| KR101531890B1 (en) * | 2013-08-30 | 2015-07-06 | 권영억 | assembly for displacement meter |
| CN103673982B (en) * | 2013-12-25 | 2018-08-17 | 山东科技大学 | A kind of shallow coal scam overlying strata movement on-Line Monitor Device and method |
-
2016
- 2016-01-22 CN CN201711016820.XA patent/CN108050982B/en active Active
- 2016-01-22 CN CN201610044914.7A patent/CN105588539B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196289Y (en) * | 1994-05-06 | 1995-05-03 | 中国科学院地质研究所 | Piston type multi-point extensometer |
| JP2010139348A (en) * | 2008-12-11 | 2010-06-24 | Sato Kogyo Co Ltd | Underground displacement observation device and method |
| CN103207418A (en) * | 2012-02-10 | 2013-07-17 | 安徽理工大学 | Coal mass volume-expanding detector for coal face and detection method |
| CN104265364A (en) * | 2014-07-31 | 2015-01-07 | 天地科技股份有限公司 | Monitoring determining method for working face goaf lateral coal plastic area width |
| CN104101313A (en) * | 2014-08-04 | 2014-10-15 | 山东科技大学 | Method for quantitative observation determination of impact coal body volume expansion |
| CN204402467U (en) * | 2014-12-30 | 2015-06-17 | 晋能集团有限公司 | A kind of mining intrinsic safety type multiple position extensometer |
| CN204646274U (en) * | 2015-03-01 | 2015-09-16 | 何文杰 | A kind of bidirectional hydraulic landing leg rod |
| CN105179018A (en) * | 2015-10-16 | 2015-12-23 | 辽宁工程技术大学 | Detection method for coal mine rock burst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108050982B (en) | 2019-10-18 |
| CN105588539A (en) | 2016-05-18 |
| CN105588539B (en) | 2018-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110318795A (en) | A kind of coal mine roadway deformation characteristics of rocks combination monitoring system and monitoring method | |
| WO2018082307A1 (en) | Total-tunnel total-process full-section surface deformation monitoring apparatus and method | |
| CN106546366B (en) | A kind of umbellate form deep hole three-dimensional stress and displacement comprehensive test device | |
| CN109162693B (en) | Method for rapidly testing rock mass block index by using monitoring while drilling technology without coring | |
| CN104061902B (en) | Combined type underground deep disaster monitoring device | |
| CN108050982B (en) | A method of on-line monitoring coal body transversely deforming | |
| CN105318824B (en) | A kind of method that wall rock loosening ring is measured based on distributed resistance foil gauge | |
| CN103216220B (en) | Rotary steerable tool horizontal drilling experimental rig | |
| NO170103B (en) | PROCEDURE FOR MEASURING DRILL SPEED. | |
| WO2021134929A1 (en) | Structure activation dual-parameter monitoring system and monitoring method | |
| CN109630098A (en) | A method of poor stress is measured using core | |
| CN106401557B (en) | A kind of method of joint test coal seam gas-bearing capacity and the determining effective extraction radius that drills of gas pressure | |
| CN105928650A (en) | Method for measuring expansion pressure of anchor head of expansion-shell type anchor bolt indoors | |
| CN108894771A (en) | A kind of experiment continuous pipe fracturing tool position error measuring system and method | |
| NO333962B1 (en) | Apparatus for use in obtaining parameters from a well stream and method of using the same. | |
| CN101372890B (en) | Creep determination technique | |
| CN103758101B (en) | Static cone penetration equipment and static cone penetration method | |
| CN110107274A (en) | TBM jumbolter real time on-line monitoring system and monitoring method based on hydraulic system | |
| CN207032194U (en) | A kind of penetration type elastic wave testing static sounding probe | |
| CN106524974B (en) | A kind of calculation method and measuring device of deep tunnel weakness coal petrography relaxation zone thickness | |
| CN108241174A (en) | A kind of detection method of buried metal pipe line | |
| CN213709647U (en) | Be used for foundation ditch stagnant water curtain leakage detection device | |
| CN214836315U (en) | Coal mine underground near-horizontal directional long drilling hole inclination measuring device along with drilling | |
| CN107036524A (en) | Underground space country rock top plate disaster noncontact magnetostriction method of real-time | |
| CN102182441B (en) | Method for locating underground non-cable test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |