CN212716432U - Pre-evaluation device for coal bed rock burst danger advanced drilling measurement - Google Patents
Pre-evaluation device for coal bed rock burst danger advanced drilling measurement Download PDFInfo
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- CN212716432U CN212716432U CN202020238731.0U CN202020238731U CN212716432U CN 212716432 U CN212716432 U CN 212716432U CN 202020238731 U CN202020238731 U CN 202020238731U CN 212716432 U CN212716432 U CN 212716432U
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- 238000005553 drilling Methods 0.000 title claims abstract description 121
- 238000005259 measurement Methods 0.000 title claims abstract description 70
- 239000003245 coal Substances 0.000 title claims abstract description 53
- 238000011156 evaluation Methods 0.000 title claims abstract description 42
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 110
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 21
- 238000012625 in-situ measurement Methods 0.000 claims abstract description 21
- 239000003381 stabilizer Substances 0.000 claims abstract description 20
- 238000011065 in-situ storage Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 23
- 230000005251 gamma ray Effects 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 4
- 238000005065 mining Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of evaluation of dangerous areas with coal mine underground mining impact tendentiousness, and discloses a pre-evaluation device for coal bed rock burst dangerous advanced drilling measurement, wherein a drilling mechanism comprises a drill bit, a directional piece and a stabilizer which are sequentially connected; the measurement-while-drilling mechanism is used for acquiring one or more of the ground stress, the surrounding rock strength, the electromagnetic radiation signal and the natural gamma signal; the in-situ measurement mechanism is used for acquiring one or more of a temperature curve, the deformation degree and position of a hole wall, the thickness of a coal seam, the occurrence of a structure and a natural resistivity curve; and a directional core-taking mechanism for obtaining the core; the stabilizer is detachably connected with the pipe column; the measurement-while-drilling mechanism is detachably connected with the tubular column and the stabilizer respectively; the in-situ measuring mechanism is detachably connected with the pipe column; the directional core-taking mechanism is detachably connected with the pipe column. The pre-evaluation device can accurately evaluate and determine the impact danger area, and provides basic measurement data for advanced accurate pressure relief before coal seam mining.
Description
Technical Field
The utility model relates to a colliery underground mining strikes regional evaluation technical field of tendency danger, especially relates to a dangerous advance drilling of coal seam rock burst surveys device of evaluating in advance.
Background
In recent years, with the increasing depth of coal mining, rock burst becomes one of the main disasters restricting coal mining safety, and the damage degree is increasing. Evaluation of the risk of rock burst is an important method for preventing and avoiding a rock burst accident. Impact risk evaluation can be divided into pre-evaluation and real-time evaluation according to the chronological relationship with mining work. The former is performed before the mining work and the latter is performed during the mining process.
The impact risk pre-evaluation means that before the working face is tunneled or stoped, theoretical analysis, numerical simulation or actual measurement means are utilized to define the range and the risk degree of an impact risk area, and danger solving measures can be taken in advance in the defined risk area. If the risk pre-evaluation of the rock burst can be accurate enough, the disaster of the rock burst is expected to be reduced or even eliminated from the source.
At present, theoretical analysis and empirical judgment means are mostly adopted for evaluating coal seam impact dangerousness, laboratory test results are supplemented, detection and detection of actual occurrence states and stress environments of coal seams are not sufficient, influence degrees of geological conditions and structural stress on the impact dangerousness cannot be quantitatively evaluated, evaluation results are mostly qualitative, and therefore coal seam impact ground pressure pre-evaluation technologies and means have a promotion space.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a coal seam rock burst dangerous advance drilling survey's evaluation device in advance for solve or partially solve the problem of the dangerous quantitative evaluation geological conditions of evaluation and tectonic stress in advance to the dangerous influence degree of impact of current coal seam impact.
The embodiment of the utility model provides a coal seam rock burst danger advance bores evaluation device in advance of surveying, include: the drilling mechanism comprises a drill bit, a directional piece and a stabilizer which are sequentially connected; the measurement-while-drilling mechanism is used for acquiring one or more of the ground stress, the surrounding rock strength, the electromagnetic radiation signal and the natural gamma signal; the in-situ measurement mechanism is used for acquiring one or more of a temperature curve, the deformation degree and position of a hole wall, the thickness of a coal seam, the occurrence of a structure and a natural resistivity curve; and a directional core-taking mechanism for obtaining the core;
the stabilizer is detachably connected with the pipe column; one end of the measurement while drilling mechanism is detachably connected with the tubular column, and the other end of the measurement while drilling mechanism is detachably connected with the stabilizer; the in-situ measuring mechanism is detachably connected with the pipe column; the directional core-taking mechanism is detachably connected with the pipe column.
On the basis of the technical scheme, the measurement while drilling mechanism comprises one or more of a ground stress measurement module, a hole wall strength measurement module, an electromagnetic radiation monitoring module and a natural gamma ray monitoring module.
On the basis of the technical scheme, the measurement while drilling mechanism further comprises a first storage module, and the ground stress measurement module, the hole wall strength measurement module, the electromagnetic radiation monitoring module and the natural gamma ray monitoring module are all connected with the first storage module.
On the basis of the technical scheme, the in-situ measuring mechanism comprises a guide plug, a ground temperature measuring module, a hole wall deformation scanning module, a geological structure detecting module and a natural resistivity detecting module which are sequentially connected.
On the basis of the technical scheme, the in-situ measuring mechanism further comprises a second storage module, and the geothermal measurement module, the hole wall deformation scanning module, the geological structure detection module and the natural resistivity detection module are all connected with the second storage module.
On the basis of the technical scheme, the directional core taking mechanism comprises a hollow drill bit and a core taking drill rod which are communicated.
On the basis of the technical scheme, the pre-evaluation device for the coal bed rock burst danger advanced drilling measurement further comprises a host, and the measurement while drilling mechanism and the in-situ measurement mechanism are connected with the host through signals.
The embodiment of the utility model provides a coal seam rock burst danger advance drilling survey's pre-evaluation device, through the drilling mechanism drilling preset degree of depth, the drilling mechanism is connected with the tubular column; sending the measurement-while-drilling mechanism into the hole to perform measurement-while-drilling operation, wherein one end of the measurement-while-drilling mechanism is connected with the pipe column, and the other end of the measurement-while-drilling mechanism is connected with the stabilizer; sending the directional core-taking mechanism into the hole to perform directional drilling and core-taking operation, and replacing the drilling mechanism and the measurement-while-drilling mechanism with the directional core-taking mechanism; sending the measurement-while-drilling mechanism into the hole to perform measurement-while-drilling operation, and replacing the directional core-taking mechanism with the measurement-while-drilling mechanism and the drilling mechanism; sending the in-situ measurement mechanism into the hole to perform in-situ measurement operation in the hole, and replacing the measurement-while-drilling mechanism and the drilling mechanism with the in-situ measurement mechanism; and obtaining a pre-evaluation result through the measurement values of the measurement-while-drilling mechanism, the directional core-taking mechanism and the in-situ measurement mechanism. The embodiment of the utility model provides a coal seam rock burst danger advance drilling survey's pre-evaluation device, measuring result is normal position continuous measurement data, has avoided the data deviation that single position sampling caused; the actual occurrence state of the coal seam is considered in the drilling and measuring data, and the result which is more in line with the site can be obtained when the drilling and measuring data are used for impact risk pre-evaluation; the maximum coal seam drilling construction depth of the directional drilling machine is more than 1000m, so that the technology is expected to realize the integral pre-evaluation of a single roadway or a working surface; and the impact danger area is accurately evaluated and determined, and basic measurement data is provided for advanced accurate pressure relief before coal seam excavation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pre-evaluation device for coal seam rock burst danger advanced drilling measurement according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another pre-evaluation device for coal seam rock burst danger advanced drilling measurement according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pre-evaluation device for coal seam rock burst danger advanced drilling measurement according to another embodiment of the present invention.
Reference numerals:
1. a drill bit; 2. an orienting member; 3. a connecting member; 4. a stabilizer; 5. a ground stress measuring module; 6. a hole wall strength measuring module; 7. an electromagnetic radiation monitoring module; 8. a natural gamma ray monitoring module; 9. a coal seam; 10. a pipe string; 11. a host; 12. a guide pipe plug; 13. a ground temperature measuring module; 14. a hole wall deformation scanning module; 15. a geological structure detection module; 16. a natural resistivity detection module; 17. a hollow core drill bit; 18. and (4) coring the drill rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 2 and fig. 3, the pre-evaluation device for coal seam rock burst danger advanced drilling measurement according to the embodiment of the present invention includes: the drilling mechanism comprises a drill bit 1, a directional piece 2 and a stabilizer 4 which are connected in sequence; wherein, the directional component 2 is connected with the stabilizer 4 through the connecting component 3;
the measurement-while-drilling mechanism is used for acquiring one or more of the ground stress, the surrounding rock strength, the electromagnetic radiation signal and the natural gamma signal; the in-situ measurement mechanism is used for acquiring one or more of a temperature curve, the deformation degree and position of a hole wall, the thickness of a coal seam, the occurrence of a structure and a natural resistivity curve; and a directional core-taking mechanism for obtaining the core;
the stabilizer 4 is detachably connected with the pipe column 10; one end of the measurement while drilling mechanism is detachably connected with the pipe column 10, and the other end of the measurement while drilling mechanism is detachably connected with the stabilizer 4; the in-situ measuring mechanism is detachably connected with the pipe column 10; the directional core-pulling mechanism is detachably connected with the pipe column 10.
In the embodiment of the utility model, the drilling mechanism drills at a preset depth and is connected with the pipe column; sending the measurement-while-drilling mechanism into the hole to perform measurement-while-drilling operation, wherein one end of the measurement-while-drilling mechanism is connected with the pipe column, and the other end of the measurement-while-drilling mechanism is connected with the stabilizer; sending the directional core-taking mechanism into the hole to perform directional drilling and core-taking operation, and replacing the drilling mechanism and the measurement-while-drilling mechanism with the directional core-taking mechanism; sending the measurement-while-drilling mechanism into the hole to perform measurement-while-drilling operation, and replacing the directional core-taking mechanism with the measurement-while-drilling mechanism and the drilling mechanism; sending the in-situ measurement mechanism into the hole to perform in-situ measurement operation in the hole, and replacing the measurement-while-drilling mechanism and the drilling mechanism with the in-situ measurement mechanism; and obtaining a pre-evaluation result through the measurement values of the measurement-while-drilling mechanism, the directional core-taking mechanism and the in-situ measurement mechanism. The embodiment of the utility model provides a coal seam rock burst danger advance drilling survey's pre-evaluation device, measuring result is normal position continuous measurement data, has avoided the data deviation that single position sampling caused; the actual occurrence state of the coal seam is considered in the drilling and measuring data, and the result which is more in line with the site can be obtained when the drilling and measuring data are used for impact risk pre-evaluation; the maximum coal seam drilling construction depth of the directional drilling machine is more than 1000m, so that the technology is expected to realize the integral pre-evaluation of a single roadway or a working surface; and the impact danger area is accurately evaluated and determined, and basic measurement data is provided for advanced accurate pressure relief before coal seam excavation.
On the basis of the above embodiment, the measurement while drilling mechanism comprises one or more of a ground stress measurement module 5, a hole wall strength measurement module 6, an electromagnetic radiation monitoring module 7 and a natural gamma ray monitoring module 8.
The embodiment of the present invention provides an in, ground stress measuring module 5, pore wall intensity measuring module 6, electromagnetic radiation monitoring module 7 and natural gamma ray monitoring module 8 all can take rechargeable power supply by themselves. The parameters which can be measured while drilling by the ground stress measuring module 5, the hole wall strength measuring module 6, the electromagnetic radiation monitoring module 7 and the natural gamma ray monitoring module 8 comprise ground stress, surrounding rock strength, electromagnetic radiation signals and natural gamma signals. The positional relationship among the ground stress measuring module 5, the hole wall strength measuring module 6, the electromagnetic radiation monitoring module 7, and the natural gamma ray monitoring module 8 is not particularly limited herein.
On the basis of the above embodiment, the measurement while drilling mechanism further includes a first storage module, and the ground stress measurement module 5, the hole wall strength measurement module 6, the electromagnetic radiation monitoring module 7, and the natural gamma ray monitoring module 8 are all connected to the first storage module.
In the embodiment of the present invention, the data measured by the ground stress measuring module 5, the hole wall strength measuring module 6, the electromagnetic radiation monitoring module 7, and the natural gamma ray monitoring module 8 can be stored in the first storage module.
On the basis of the above embodiment, the in-situ measurement mechanism includes a guide plug 12, a ground temperature measurement module 13, a hole wall deformation scanning module 14, a geological structure detection module 15 and a natural resistivity detection module 16, which are connected in sequence.
The embodiment of the utility model provides an in, geothermal measurement module 13, pore wall deformation scanning module 14, geological structure detection module 15 and natural resistivity detection module 16 measuring parameter include temperature curve, pore wall deformation degree and position, coal seam thickness, structure occurrence and natural resistivity curve.
It should be noted that the guide plug 12 is located at an end away from the pipe string 10, and the positional relationship among the geothermal measurement module 13, the hole wall deformation scanning module 14, the geological structure detection module 15 and the natural resistivity detection module 16 is not particularly limited herein.
On the basis of the above embodiment, the in-situ measurement mechanism further includes a second storage module, and the geothermal measurement module 13, the hole wall deformation scanning module 14, the geological structure detection module 15, and the natural resistivity detection module 16 are all connected to the second storage module.
It should be noted that the data measured by the geothermal measurement module 13, the hole wall deformation scanning module 14, the geological structure detection module 15 and the natural resistivity detection module 16 may be stored in the second storage module. The earth temperature measuring module 13, the hole wall deformation scanning module 14, the geological structure detecting module 15 and the natural resistivity detecting module 16 may all have their own rechargeable power supplies.
On the basis of the above embodiment, the directional core-taking mechanism comprises a hollow core drill bit 17 and a core drill rod 18 which are communicated with each other.
It should be noted that the drilled core may be tested in an impact propensity laboratory and the impact propensity of the coal seam at different locations along the borehole may be calibrated according to the results.
On the basis of the embodiment, the pre-evaluation device for the coal bed rock burst danger advanced drilling measurement further comprises a host 11, and the measurement while drilling mechanism and the in-situ measurement mechanism are connected with the host 11 through signals.
It should be noted that, after obtaining all the measurement results, the host computer 11 extracts and calculates the following measurement values: and (3) obtaining an evaluation result value according to a comprehensive index method by using a set of the measured values, and quantitatively and continuously pre-evaluating the impact risk of the coal seam along different areas of the drilled hole.
It should be noted that the parameters measured by the geostress measurement module 5, the pore wall strength measurement module 6, the electromagnetic radiation monitoring module 7, the natural gamma ray monitoring module 8, the geothermal temperature measurement module 13, the pore wall deformation scanning module 14, the geological structure detection module 15 and the natural resistivity detection module 16 can be transmitted to the host 11 outside the pore.
It can be understood that the drilling mechanism is connected with the pipe column, the drilling mechanism, the measurement while drilling mechanism and the pipe column are connected, when the in-situ measurement mechanism is connected with the pipe column, the pipe column can convey high-pressure drilling fluid provided by the drilling machine to the drill bit, the drill bit carries out impact type reciprocating coal breaking operation, and the pipe column does not rotate. When the directional core-taking mechanism is connected with the pipe column, the power of the hollow drill bit is provided by the rotation of the pipe column 10.
The embodiment of the utility model provides an in, to use 6.0m of thickness of coal seam 9, the pre-evaluation object is for being about to a certain crossheading (width is 5.8m, high 4.0m) of tunnelling, and the distance that moves towards length and need bore the survey is explained for 1000m as an example, and the construction of measuring in detail includes following steps:
s1, arranging the holes: a hole is formed in the middle of the coal seam, namely the height position 3.0m away from the bottom plate or the top plate, the horizontal position is positioned in the middle of the crossheading, namely the distance is 2.9m away from the two designed sides, and the diameter of one-time drilling is 145 mm;
s2, measurement while drilling:
s201: drilling 10.0m along the designed position and size by a drilling machine and a drilling mechanism, and connecting the stabilizer with the pipe column at the moment; then withdrawing the pipe column and the drilling mechanism from the drilling hole; disconnecting the connection between the stabilizer and the pipe column, connecting a measurement-while-drilling mechanism, which comprises a ground stress measurement module, a hole wall strength measurement module, an electromagnetic radiation monitoring module and a natural gamma ray monitoring module, at the rear part of the stabilizer through a connecting piece, and then connecting the ground stress measurement module, the hole wall strength measurement module, the electromagnetic radiation monitoring module and the natural gamma ray monitoring module with the pipe column;
s202: starting up the modules, and testing the communication between the host outside the hole and each module;
s203: manually feeding the tested whole device into the hole, connecting a drilling fluid supply pipeline to the rear pipe column, and starting drilling machine and measurement construction;
s204: the length of the pipe column is 3.0m, and the pipe column is stopped for 5min when drilling for 3.0m, and is used for measuring operation of each module;
s3, directional drilling and coring construction:
s301: when the drilling machine drills 30m, the drilling machine stops and lifts the pipe column by 20cm by using the clamp, drilling fluid is continuously pumped for flushing the drilled hole until the return fluid in the hole basically has no coal slag, and all the pipe columns are lifted;
s302: replacing the drilling mechanism and the measurement while drilling mechanism with a directional core-taking mechanism, connecting the pipe column, and then putting all tools to the bottom of the drilled hole;
s303: the pipe column is rotated by the gripper and provides propelling force to drill, when the drilling depth is about 1.0m, the machine is stopped, the pipe column is lifted up at a low speed, and the coring work at the position is finished; at the moment, the coring drill rod is connected with the pipe column through a connecting piece;
s304: replacing the directional core-taking mechanism with a drilling mechanism and a measurement-while-drilling mechanism again, and continuing to perform drilling and measurement-while-drilling work; at the moment, the ground stress measuring module is connected with the stabilizer through a connecting piece, and the natural gamma ray monitoring module is connected with the tubular column;
s4, in-hole in-situ measurement operation construction:
s401: when the drilling machine drills to the depth of 1000m, the drilling machine stops and lifts the pipe column by 20cm by using the clamp, drilling fluid is continuously pumped for flushing the drilled hole until the return fluid in the hole basically has no coal slag, and all the pipe columns are lifted;
s402: the drilling mechanism and the measurement while drilling mechanism are replaced by in-situ measurement mechanisms, and the in-situ measurement mechanisms comprise guide plugs, a ground temperature measurement module, a hole wall deformation scanning module, a geological structure detection module and a natural resistivity detection module; at the moment, the natural resistivity detection module is connected with the tubular column;
s403: starting up each module, and testing the communication between the host outside the hole and each module;
s404: sending the tested whole set of in-situ measuring mechanism into the hole by manpower, connecting a pipe column at the rear part, and slowly pushing the pipe column by a drilling machine clamp holder for in-hole measuring operation;
s5, measurement and evaluation:
s501: the following measurements were taken: vertical stress, maximum horizontal stress, deviation degree of horizontal stress and tunneling or mining direction, compressive strength, shrinkage of hole wall, electromagnetic radiation signal abnormality, natural gamma ray signal abnormality, and earth temperature abnormality, wherein the measured values are replaced by symbols, wherein the vertical stress C1Maximum horizontal stress C2Degree of deviation C of horizontal stress from heading or mining direction3(value between 0 and 1) and compressive strength C4Shrinkage of hole wall C5(value is between 0 and 1) and whether the electromagnetic radiation signal is abnormal or not C6The value is 0 or 1(0 represents no abnormity, 1 represents abnormity), and whether the natural gamma ray signal is abnormal or not C7The value is 0 or 1(0 represents no abnormity, 1 represents abnormity), and the ground temperature is abnormal or not C8The value is 0 or 1(0 represents no abnormality, 1 represents abnormality);
s502: determining a critical value and an influence factor; wherein, CviA danger threshold value (i is 1-8) representing a certain measured value of rock burst accidents of the mining area, coal mine or coal seam, KiAn influence factor (i is 1-8) representing the measured value, wherein the influence factor is determined by a large amount of actually measured data of the impact coal seam site;
s503: drilling measurement result C of different areas by using comprehensive index methodcbiThe result is calculated as follows:
s504: according to the evaluation result of S503, CcbiThe larger the value is, the greater the danger of rock burst is, and the targeted advanced pressure relief can be carried out on the dangerous area of the tunneling working face according to the pre-evaluation result value.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pre-evaluation device for coal seam rock burst danger advanced drilling measurement is characterized by comprising: the drilling mechanism comprises a drill bit, a directional piece and a stabilizer which are sequentially connected; the measurement-while-drilling mechanism is used for acquiring one or more of the ground stress, the surrounding rock strength, the electromagnetic radiation signal and the natural gamma signal; the in-situ measurement mechanism is used for acquiring one or more of a temperature curve, the deformation degree and position of a hole wall, the thickness of a coal seam, the occurrence of a structure and a natural resistivity curve; and a directional core-taking mechanism for obtaining the core;
the stabilizer is detachably connected with the pipe column; one end of the measurement while drilling mechanism is detachably connected with the tubular column, and the other end of the measurement while drilling mechanism is detachably connected with the stabilizer; the in-situ measuring mechanism is detachably connected with the pipe column; the directional core-taking mechanism is detachably connected with the pipe column.
2. The device for pre-evaluation of coal seam rock burst danger advanced drilling measurement as claimed in claim 1, wherein the measurement while drilling mechanism comprises one or more of a ground stress measurement module, a hole wall strength measurement module, an electromagnetic radiation monitoring module and a natural gamma ray monitoring module.
3. The device for pre-evaluating coal seam rock burst danger advanced drilling measurement according to claim 2, wherein the measurement while drilling mechanism further comprises a first storage module, and the ground stress measurement module, the hole wall strength measurement module, the electromagnetic radiation monitoring module and the natural gamma ray monitoring module are all connected with the first storage module.
4. The device for pre-evaluation of coal seam rock burst dangerousness advanced drilling and measurement as claimed in claim 1, wherein the in-situ measuring mechanism comprises a guide plug, a ground temperature measuring module, a hole wall deformation scanning module, a geological structure detecting module and a natural resistivity detecting module which are connected in sequence.
5. The device for pre-evaluation of coal seam rock burst dangerousness advanced drilling according to claim 4, wherein the in-situ measuring mechanism further comprises a second storage module, and the geothermal measuring module, the hole wall deformation scanning module, the geological structure detection module and the natural resistivity detection module are all connected with the second storage module.
6. The device for pre-evaluation of coal seam rock burst danger advanced drilling measurement as claimed in claim 1, wherein the directional coring mechanism comprises a hollow core drill bit and a coring drill rod which are communicated with each other.
7. The device for pre-evaluating the coal seam rock burst dangerousness advanced drilling test as claimed in claim 1, characterized in that the device for pre-evaluating the coal seam rock burst dangerousness advanced drilling test further comprises a host, and the measurement while drilling mechanism and the in-situ measurement mechanism are in signal connection with the host.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803067A (en) * | 2021-08-13 | 2021-12-17 | 山东省煤田地质规划勘察研究院 | Local rock burst prevention and control device for coal mine |
| CN114483024A (en) * | 2022-04-18 | 2022-05-13 | 中国矿业大学(北京) | Rock burst grade in-situ evaluation and control design method |
-
2020
- 2020-03-02 CN CN202020238731.0U patent/CN212716432U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803067A (en) * | 2021-08-13 | 2021-12-17 | 山东省煤田地质规划勘察研究院 | Local rock burst prevention and control device for coal mine |
| CN113803067B (en) * | 2021-08-13 | 2024-01-23 | 山东省煤田地质规划勘察研究院 | Colliery local rock burst prevention and cure device |
| CN114483024A (en) * | 2022-04-18 | 2022-05-13 | 中国矿业大学(北京) | Rock burst grade in-situ evaluation and control design method |
| CN114483024B (en) * | 2022-04-18 | 2022-07-15 | 中国矿业大学(北京) | Rock burst grade in-situ evaluation and control design method |
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