CN117007225A - Rock mass stress monitoring device - Google Patents
Rock mass stress monitoring device Download PDFInfo
- Publication number
- CN117007225A CN117007225A CN202310998245.7A CN202310998245A CN117007225A CN 117007225 A CN117007225 A CN 117007225A CN 202310998245 A CN202310998245 A CN 202310998245A CN 117007225 A CN117007225 A CN 117007225A
- Authority
- CN
- China
- Prior art keywords
- rod
- monitoring device
- rock mass
- rod body
- cover
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 56
- 238000012806 monitoring device Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 16
- 239000003245 coal Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates to the technical field of rock mass stress monitoring, and discloses a rock mass stress monitoring device, which comprises a monitoring device, wherein the monitoring device comprises: the top of the monitor is provided with a bottom cover; the top of bottom is provided with pulls out the group, it includes to pull out the group: the cover body is arranged at the top of the bottom cover; the first rod body is arranged in the cover body, and a through hole matched with the first rod body is formed in the top of the cover body; a connecting block; this rock mass stress monitoring devices through installing the lid to the end and covering, then pull out the body of rod on the lid to pull out whole monitoring devices through body of rod first, when body of rod first outwards pulls out with force, be provided with the connecting block of rotating with body of rod second on the body of rod, body of rod second rotates with the supporting shoe to be connected, thereby make body of rod second take place to rotate, the bottom of body of rod can contact with rock mass surface after rotating, exert force and the force of outwards extruding to monitoring devices to the rock mass, further make things convenient for monitoring devices's pull out.
Description
Technical Field
The utility model relates to the technical field of rock mass stress monitoring, in particular to a rock mass stress monitoring device.
Background
Natural stresses that exist in the formation without engineering disturbance are referred to as virgin stress, also referred to as initial stress or ground stress. It mainly includes dead weight stress caused by dead weight of overlying strata and structural stress caused by geological structure action. The self-weight stress sigma v=gamma Z, gamma is the specific gravity of the overlying coal stratum, and Z is the vertical depth. Structural stresses can be divided into modern structural stresses and geologic structural residual stresses. The ground stress is a basic parameter for disaster prevention such as coal mining, support design, rock burst, coal and gas outburst, and the like, and the testing and evaluation of the stress of the coal and rock mass are main contents of the observation of the mine pressure and fundamental acting forces for causing deformation and even damage of surrounding rocks, water conservancy and hydropower, railways, roads and rock-soil excavation engineering of mining engineering. The accurate measurement of the ground stress is the stability analysis of the ground and underground geotechnical engineering, and the necessary precondition of geotechnical engineering related design and scientific decision is realized; rock mass stress is an important parameter for engineering rock mass stability analysis and engineering design. The stress of rock mass is mainly obtained by actual measurement, especially in the areas with strong construction activity and complex topography fluctuation, the gravity stress theory can not solve the problem of the same stress of rock mass, and the stress of rock mass can not be directly measured, but can only be measured by measuring the change value of physical quantity such as displacement, vertical change and the like caused by the stress change surface, and then the stress value is reversely calculated based on a certain assumption.
According to the flexible stress monitoring device for the coal rock mass disclosed by the Chinese patent publication No. 216144449U, firstly, the device is placed into a hole depth where pressure needs to be detected, an electric telescopic rod in a liquid storage cylinder stretches to drive a piston to slide in the liquid storage cylinder, liquid in a liquid storage chamber is pushed into a liquid outlet, the liquid in the liquid outlet generates pressure to a liquid stopping head, when the pressure reaches a certain value, the liquid pushes the liquid stopping head outwards to drive a sliding block to slide outwards, at the moment, the liquid respectively passes through a gap between the liquid stopping head and the liquid outlet, a liquid discharge hole and finally is discharged into a pressurizing chamber, when the liquid in the pressurizing chamber is more and more, a flexible shell is driven to slowly attach to a hole wall, so that the flexible shell is completely pressurized and tightly attached to the hole wall, and the liquid in the pressurizing chamber is prevented from flowing backwards, at the moment, the pressure sensor starts working, any pressure change occurs after detection, a pressure value is increased, the pressure stress of the coal rock mass is increased, and the pressure stress of the coal rock mass is reduced. Through setting up flexible pressure pillow, simple structure, simple to operate, the shell adopts flexible material, makes the pressure pillow need not pay attention to the direction of putting when putting into the drilling, and direct propelling movement is put into can. After pressurizing, the pressure sensor is in close contact with the hole wall, and only a rock mass is slightly pressurized, so that the problems of inaccurate reading, loss and insensitivity of a pressure pillow are solved, the drilling pressure stress can be monitored more accurately and timely, and more accurate pressure parameters are provided for scientific research and safe production management.
But the device is when using, needs to insert whole monitoring device into the inside of rock mass, when not monitoring or change and daily maintenance to monitoring device, need extract monitoring device, but traditional monitoring device is in will inserting the back in the rock mass, inconvenient extracting monitoring device.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a rock mass stress monitoring device which has the advantage of convenient pulling out, and solves the problem that the stress monitoring device is inconvenient to pull out of a rock mass.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: a rock mass stress monitoring device comprising a monitoring device, the monitoring device comprising: the top of the monitor is provided with a bottom cover; the top of bottom is provided with pulls out the group, it includes to pull out the group: the cover body is arranged at the top of the bottom cover; the first rod body is arranged in the cover body, and a through hole matched with the first rod body is formed in the top of the cover body; the connecting block is sleeved on the outer side wall of the first rod body; the second rod body is symmetrically arranged on the outer side wall of the monitor, the second rod body is rotationally connected with the connecting block through a fixed block, a first sliding groove matched with the fixed block is formed in the outer side wall of the second rod body, and a limiting block matched with the connecting block is sleeved on the outer side wall of the first rod body; the support blocks are symmetrically arranged at the top of the cover body and are rotationally connected with the second rod body.
Preferably, a pressing piece is arranged at the bottom of the second rod body, the pressing piece is connected with the second rod body through a shaft body, and a second sliding groove matched with the shaft body is formed in the outer side wall of the second rod body.
Preferably, the pressing member includes:
the shell is internally provided with a connecting piece, and the connecting piece is connected with the second rod body;
and the spring is arranged between the connecting piece and the shell.
Preferably, a groove is formed in the bottom of the shell, a foot is arranged in the groove, and the foot is rotationally connected with the groove.
Preferably, an installation block is arranged on the outer side wall of the cover body, and a fixing groove matched with the pressing piece and the second rod body is formed in the top of the installation block.
Preferably, a ring body is arranged at the top of the first rod body, and the ring body is connected with the first rod body through threads.
Preferably, a first spring matched with the cover body is sleeved on the outer side wall of the first rod body.
Preferably, the cover body is in threaded connection with the bottom cover.
(III) beneficial effects
Compared with the prior art, the utility model provides a rock mass stress monitoring device, which has the following beneficial effects:
this rock mass stress monitoring devices through installing the lid to the bottom lid, then pull out the body of rod on the lid, thereby pull out whole monitoring devices through body of rod first, when body of rod first outwards pulls out with force, be provided with the connecting block of being connected with body of rod second rotation on body of rod, body of rod second rotates with the supporting shoe to make body of rod second take place to rotate, the bottom of body of rod can contact with rock mass surface after rotating, apply force to the rock mass and the outside extrusion force to monitoring devices, further make things convenient for monitoring devices's pull out, and be provided with a pressure applying piece in the bottom of body of rod second, further increase body of rod second and the contact distance on rock wall surface, avoid body of rod second to contact the rock wall, will extrude the casing when body of rod second downwards rotates, because inside connecting piece passes through the axis body with body of rod second and is connected, thereby make casing and connecting piece separate, the extension length, further make monitoring devices conveniently pull out the rock wall application of force.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the pressing member of the present utility model;
fig. 3 is a schematic structural view of a cover body in the present utility model.
Fig. 4 is a schematic cross-sectional view of a cover according to the present utility model.
In the figure:
1. a monitoring device; 11. a monitor; 12. a bottom cover;
2. pulling out the assembly; 21. a cover body; 211. a through hole; 22. a first rod body; 221. a ring body; 222. a first spring; 23. a second rod body; 24. a connecting block; 241. a fixed block; 242. a first chute; 243. a limiting block; 25. a support block; 26. a pressurizing member; 261. a housing; 262. a connecting piece; 263. a spring; 264. a groove; 265. a footing; 27. a shaft body; 271. a second chute; 28. a mounting block; 281. a fixing groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-4, a rock mass stress monitoring device comprising a monitoring device 1, the monitoring device 1 comprising: a monitor 11, the top of which is provided with a bottom cover 12; the top of the bottom cover 12 is provided with a pull-out group 2, the pull-out group 2 comprising: a cover 21 disposed on top of the bottom cover 12; the first rod body 22 is arranged in the cover body 21, and a through hole 211 matched with the first rod body 22 is formed in the top of the cover body 21; the connecting block 24 is sleeved on the outer side wall of the first rod body 22; the second rod body 23 is symmetrically arranged on the outer side wall of the monitor 11, the second rod body 23 is rotationally connected with the connecting block 24 through a fixed block 241, a first chute 242 matched with the fixed block 241 is formed on the outer side wall of the second rod body 23, and a limiting block 243 matched with the connecting block 24 is sleeved on the outer side wall of the first rod body 22; the supporting blocks 25 are symmetrically arranged at the top of the cover body 21 and are rotationally connected with the rod body II 23, the monitor 11 is inserted into a rock mass when the monitoring device 1 is used, pressure data is monitored through the pressure sensor in the monitor 11, then a technician collects and sorts the collected data, the data is calculated according to a corresponding formula and model, so that the numerical value of rock mass stress is obtained, data support is provided for subsequent mine tunnel operation and danger assessment, when the monitoring device 1 needs to be maintained, the cover body 21 is mounted on the bottom cover 12, the rod body I22 on the cover body 21 is pulled out, the rod body I22 is pulled out from the through hole on the cover body 21, the length of the rod body I22 is increased, a worker grasps the rod body I22 outwards by hand, the whole monitoring device 1 is pulled out through the rod body I22, other means such as tool tilting or smashing are not needed by the worker, when the first rod 22 is pulled out by force, a connecting block 24 rotationally connected with the second rod 23 is arranged on the first rod 22, the second rod 23 is fixed with the first rod 22 through the connecting block 24, the second rod 23 is rotationally connected with a supporting block 25 arranged on the cover body 21, when the first rod 22 is pulled out by moving outwards, a limiting block 243 on the first rod 22 drives the connecting block 24 to move, so that the second rod 23 rotates around the supporting block 25, the second rod 23 and the connecting block 24 are rotationally fixed through a fixing block 241, a first chute 242 on the outer side wall of the second rod 23 can slide in the first chute 242 when the connecting block 24 drives the second rod 23 to rotate, so that the connecting block 24 and the second rod 23 are prevented from being mutually clamped, the normal rotation of the second rod 23 is influenced, and the normal pulling out of the first rod 22 is simultaneously influenced; the bottom of body of rod two 23 can be with rock mass surface contact after rotating, to the rock mass force and to the outside extrusion's of monitoring device 1 force, the more with the outside pulling body of rod one 22 of force, the bigger the force that body of rod two 23 was exerted to the rock wall, the more easily makes monitoring device 1 receive outside force, further makes things convenient for the extraction of monitoring device 1, alleviates monitoring device 1 and is pulled out the difficulty.
The bottom of the second rod body 23 is provided with a pressing piece 26, the pressing piece 26 is connected with the second rod body 23 through a shaft body 27, a second chute 271 matched with the shaft body 27 is formed in the outer side wall of the second rod body 23, and the pressing piece 26 comprises: a housing 261, in which a connecting member 262 is disposed, the connecting member 262 being connected to the second rod 23; the spring 263 is disposed between the connecting piece 262 and the casing 261, and a pressing piece 26 is disposed at the bottom of the second rod 23, so that the contact distance between the second rod 23 and the surface of the rock wall is further increased, the second rod 23 is prevented from contacting the rock wall, when the second rod 23 rotates downwards, the casing 261 is extruded, and the internal connecting piece 262 is connected with the second rod 23 through the shaft 27, so that the casing 261 is separated from the connecting piece 262, the casing 261 moves downwards, the length of the pressing piece 26 is prolonged, the pressing piece 26 can be conveniently contacted with the rock wall, and the force can be further conveniently applied to the rock wall, so that the monitoring device 11 can be conveniently pulled out.
Example two
An auxiliary function is added on the basis of the first embodiment.
Referring to fig. 1-4, the bottom of the housing 261 is provided with a recess 264, a foot 265 is disposed in the recess 264, the foot 265 is rotationally connected with the recess 264, and further, the rotatable delivery 265 facilitates the contact between the housing 261 and the surface of the rock wall, so as to avoid the uneven surface of the rock wall, and the contact area between the housing 261 and the rock wall is too small, so that the force applied to the rock wall by the rod body two 23 and the housing 261 is seriously affected, the practicality of the structure is improved, and the use effect of the whole device is improved.
The lateral wall of lid 21 is provided with installation piece 28, the top of installation piece 28 is offered the cooperation pressing piece 26 with the fixed slot 281 of body of rod two 23 increases the stability of pressing piece 26 and body of rod two 23 through installation piece 28 and fixed slot 281, prevents that pressing piece 26 and body of rod two 23 from taking place to buckle easily and damaging, and simultaneously does not hinder the bottom of body of rod two 23 when rotating downwards, the power to casing 261 applied makes casing 261 move downwards, avoids installation piece 28 to cause the influence to body of rod two 23, hinders body of rod two 23 normal rotation downwards.
The top of the first rod body 22 is provided with a ring body 221, the ring body 221 is in threaded connection with the first rod body 22, the ring body 221 is convenient for a worker to pull out the monitoring device through the ring body 221, more labor is saved, when the first rod body 22 is directly held by bare hands, the friction force is small and too smooth, so that the worker cannot feel hard, the monitoring device cannot be pulled out through the first rod body 22, the ring body 221 is in threaded connection with the first rod body 22, when the monitoring device 1 works in a rock body, the first ring body 22 can be taken down, other people can be prevented from pulling out the monitoring device 1 by mistake, the use of the monitoring device 1 is influenced, the outer side wall of the first rod body 22 is sleeved with a first spring 222 matched with the cover body 21, and when the first rod body 22 is not pulled out, the first spring 222 can reenter the inside the cover body 21, the distance is shortened, the occupation of space is reduced, and the collision to the pedestrians or other devices affecting the data of the monitoring device 1 are avoided; the cover body 21 is in threaded connection with the bottom cover 12, so that the cover body 21 and the bottom cover 12 are conveniently fixed, the fixing effect of the cover body 21 and the bottom cover 12 is ensured, the mounting speed of the cover body 21 can be increased, and the working efficiency is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Rock mass stress monitoring device comprising a monitoring device (1), the monitoring device (1) comprising:
a monitor (11) with a bottom cover (12) on the top;
the method is characterized in that: the top of bottom cover (12) is provided with pulls out group (2), pulls out group (2) include:
the cover body (21) is arranged at the top of the bottom cover (12);
the first rod body (22) is arranged in the cover body (21), and a through hole (211) matched with the first rod body (22) is formed in the top of the cover body (21);
the connecting block (24) is sleeved on the outer side wall of the first rod body (22);
the second rod body (23) is symmetrically arranged on the outer side wall of the monitor (11), the second rod body (23) is rotationally connected with the connecting block (24) through a fixed block (241), a first chute (242) matched with the fixed block (241) is formed in the outer side wall of the second rod body (23), and a limiting block (243) matched with the connecting block (24) is sleeved on the outer side wall of the first rod body (22);
the support blocks (25) are symmetrically arranged at the top of the cover body (21) and are rotationally connected with the second rod body (23).
2. A rock mass stress monitoring device according to claim 1, wherein: the bottom of the second rod body (23) is provided with a pressing piece (26), the pressing piece (26) is connected with the second rod body (23) through a shaft body (27), and a second sliding groove (271) matched with the shaft body (27) is formed in the outer side wall of the second rod body (23).
3. A rock mass stress monitoring device according to claim 2, wherein: the pressing member (26) includes:
a housing (261) in which a connecting member (262) is provided, the connecting member (262) being connected to the second rod body (23);
and a spring (263) provided between the connector (262) and the housing (261).
4. A rock mass stress monitoring device according to claim 3, wherein: the bottom of casing (261) is provided with recess (264), the inside of recess (264) is provided with footing (265), footing (265) with recess (264) rotation is connected.
5. A rock mass stress monitoring device according to claim 2, wherein: the outer side wall of the cover body (21) is provided with a mounting block (28), and the top of the mounting block (28) is provided with a fixing groove (281) matched with the pressing piece (26) and the second rod body (23).
6. A rock mass stress monitoring device according to claim 1, wherein: the top of the first rod body (22) is provided with a ring body (221), and the ring body (221) is connected with the first rod body (22) through threads.
7. The rock mass stress monitoring device of claim 6, wherein: the outer side wall of the first rod body (22) is sleeved with a first spring (222) matched with the cover body (21).
8. The rock mass stress monitoring device of claim 7, wherein: the cover body (21) is in threaded connection with the bottom cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310998245.7A CN117007225B (en) | 2023-08-09 | 2023-08-09 | Rock mass stress monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310998245.7A CN117007225B (en) | 2023-08-09 | 2023-08-09 | Rock mass stress monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117007225A true CN117007225A (en) | 2023-11-07 |
| CN117007225B CN117007225B (en) | 2024-03-22 |
Family
ID=88561584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310998245.7A Active CN117007225B (en) | 2023-08-09 | 2023-08-09 | Rock mass stress monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117007225B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499420A (en) * | 2016-11-03 | 2017-03-15 | 中国矿业大学 | A kind of mechanical type constant-resistance individual prop installation method and erection method |
| CN108037016A (en) * | 2017-12-28 | 2018-05-15 | 太原理工大学 | Supercritical CO 2 reaction kettle and rock mass creep diffusion erosion test system |
| CN212714888U (en) * | 2020-06-24 | 2021-03-16 | 北京城乡中昊建设有限责任公司 | Foundation ditch horizontal displacement detection device |
| CN112781765A (en) * | 2020-12-24 | 2021-05-11 | 绍兴文理学院 | Novel simple ground stress testing device and testing method |
| CN113217062A (en) * | 2021-06-08 | 2021-08-06 | 辽宁工程技术大学 | Prestressed anchor rod with telescopic arm and use method |
| CN215211189U (en) * | 2020-09-02 | 2021-12-17 | 袁静 | Three-in-one multifunctional geotechnical engineering monitoring device |
| CN114018210A (en) * | 2021-11-26 | 2022-02-08 | 中国电建集团成都勘测设计研究院有限公司 | Underground cavern surrounding rock deformation monitoring devices |
| CN216144449U (en) * | 2021-08-24 | 2022-03-29 | 山东敬泰工程科技有限公司 | Coal rock mass flexibility stress monitoring devices |
| CN216559843U (en) * | 2021-12-20 | 2022-05-17 | 陕西承天志信息科技有限公司 | Sample extraction equipment for land survey |
| CN218035465U (en) * | 2022-09-08 | 2022-12-13 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal rock mass stress monitoring device |
-
2023
- 2023-08-09 CN CN202310998245.7A patent/CN117007225B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499420A (en) * | 2016-11-03 | 2017-03-15 | 中国矿业大学 | A kind of mechanical type constant-resistance individual prop installation method and erection method |
| CN108037016A (en) * | 2017-12-28 | 2018-05-15 | 太原理工大学 | Supercritical CO 2 reaction kettle and rock mass creep diffusion erosion test system |
| CN212714888U (en) * | 2020-06-24 | 2021-03-16 | 北京城乡中昊建设有限责任公司 | Foundation ditch horizontal displacement detection device |
| CN215211189U (en) * | 2020-09-02 | 2021-12-17 | 袁静 | Three-in-one multifunctional geotechnical engineering monitoring device |
| CN112781765A (en) * | 2020-12-24 | 2021-05-11 | 绍兴文理学院 | Novel simple ground stress testing device and testing method |
| CN113217062A (en) * | 2021-06-08 | 2021-08-06 | 辽宁工程技术大学 | Prestressed anchor rod with telescopic arm and use method |
| CN216144449U (en) * | 2021-08-24 | 2022-03-29 | 山东敬泰工程科技有限公司 | Coal rock mass flexibility stress monitoring devices |
| CN114018210A (en) * | 2021-11-26 | 2022-02-08 | 中国电建集团成都勘测设计研究院有限公司 | Underground cavern surrounding rock deformation monitoring devices |
| CN216559843U (en) * | 2021-12-20 | 2022-05-17 | 陕西承天志信息科技有限公司 | Sample extraction equipment for land survey |
| CN218035465U (en) * | 2022-09-08 | 2022-12-13 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal rock mass stress monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117007225B (en) | 2024-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101294489B (en) | Apparatus for testing applied force and displacement of down-hole tubular pile | |
| CN104215364B (en) | A kind of strain rosette sticker of reducing voluntarily for geostress survey | |
| CN102174898B (en) | Mine ground pressure monitoring system | |
| CN112012227B (en) | Strip foundation pit steel structure supporting structure capable of conducting leveling and stress detection | |
| CN113502855B (en) | Intelligent monitoring devices is strutted to deep basal pit anchor formula | |
| CN109356541A (en) | Electronic dispensing pipe nipple and put-on method | |
| CN117007225B (en) | Rock mass stress monitoring device | |
| CN208347806U (en) | A kind of intelligent advance anchor bolt device of multiple information | |
| CN205656028U (en) | Special sampling drill bit of high accuracy geological survey | |
| CN2139953Y (en) | Forced water testing device for engineering geological prospecting | |
| CN211397559U (en) | Underground coal mine drilling depth measuring device | |
| CN111141237A (en) | Device and method for monitoring landslide deformation through splicing extrusion | |
| CN202250054U (en) | Long probe system | |
| CN206593974U (en) | A kind of boring elastic modulus instrument probe | |
| CN202325482U (en) | Drill hole depth metering device | |
| CN202012372U (en) | Mine pressure monitoring system | |
| CN2196289Y (en) | Piston type multi-point extensometer | |
| CN210375792U (en) | Environmental monitoring data acquisition device | |
| CN207315365U (en) | Mining measuring head telescopic coal body aperture measuring device | |
| CN112343577A (en) | Fracturing well oil reservoir testing device | |
| CN205404017U (en) | Can measure petrosal foramen tangential strain's sleeve device | |
| CN201382772Y (en) | Precision measuring device for compression amount at deep part of coal pillar | |
| CN220650893U (en) | Hammering mechanism for engineering geophysical prospecting device | |
| CN215518906U (en) | Novel foundation pit deformation monitoring device | |
| CN217687654U (en) | Pressure detection device for drilling pipeline of rock drill |
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 |