CN113049161A - Intelligent device for stress relief ground stress measurement and use method thereof - Google Patents
Intelligent device for stress relief ground stress measurement and use method thereof Download PDFInfo
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- CN113049161A CN113049161A CN202110300812.8A CN202110300812A CN113049161A CN 113049161 A CN113049161 A CN 113049161A CN 202110300812 A CN202110300812 A CN 202110300812A CN 113049161 A CN113049161 A CN 113049161A
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- 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
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
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Abstract
The invention discloses intelligent equipment for stress relief ground stress measurement and a using method thereof, wherein the equipment comprises combined measuring equipment and handheld signal transmission equipment; the combined measuring equipment comprises a drill bit drilling combined device, a sensor device and a shell; the drill bit creeps into composite set and includes from inside to outside through the nested inlayer impregnated diamond drill bit that is in the same place of jump ring device laminating in proper order, intermediate layer slope impregnated diamond drill bit and outer impregnated diamond drill bit, handheld signal transmission equipment can control the drill bit and creep into each drill bit transform position in the composite set and construct, this equipment can be quick, convenient, the effectual construction that carries out the mine underground ground stress measurement, for the analysis of mine country rock stability and realize that underground works safety excavation produces provides scientific foundation, the demand of ground stress test has fully been satisfied.
Description
Technical Field
The invention relates to the technical field of coal mine safety mining, in particular to intelligent stress relief ground stress measurement equipment and a using method thereof.
Background
With the gradual increase of the mining intensity and depth of coal resources, dynamic disaster accidents occur frequently. The impact mine pressure is a typical coal mine dynamic disaster, has the characteristics of outburst, violence, urgency and the like, and can cause serious damage to a roadway and serious casualties of personnel. The ground stress is the fundamental acting force which causes the deformation and the damage of mining and other various underground engineering, the size and the direction of a ground stress field have obvious influence on the impact mine pressure, and the accurate measurement of the current ground stress state of an area has important functions and significance for analyzing the stability of surrounding rocks and realizing the safe excavation production of the underground engineering.
The stress relieving method is the most common ground stress measuring method, a large number of engineering practices prove that the stress relieving method can accurately measure the natural stress in a rock mass, the basic steps of the stress relieving method test are introduced in the engineering rock mass test method standard (GB/T50266-2013), but the ground stress measuring work still has a plurality of troublesome problems due to poor underground construction conditions:
firstly, during construction, the drilling tool needs to be disassembled and assembled repeatedly, the working procedure is complicated, the construction time is long, the disturbance damage influence is large, hole collapse is easy to cause, and the measurement work cannot be continued;
when drilling construction is carried out, due to the fact that the stratum is not homogeneous and occurrence conditions are complex, the inclination of the stress relief hole or the expansion of the aperture of the stress relief hole is easily caused, the hole for measurement is not concentric with the stress relief hole, or the hole for measurement is inclined, and the hollow inclusion strain gauge cannot be installed;
when the strain gauge is installed, the strain gauge cannot be accurately conveyed into the small hole by using the installation rod, once the epoxy resin in the cavity is extruded out, the hollow inclusion strain gauge cannot be continuously used due to the residual epoxy resin in the hollow inclusion cavity;
the hollow inclusion sensor has longer wiring, and when the stress is relieved, the content of the drill rod is easy to twist, so that the data cannot be measured continuously;
the depth of measurement is within 30m, and deep hole measurement cannot be carried out.
Therefore, the intelligent stress relief crustal stress measurement device is urgently needed to be developed to meet the requirement of underground measurement of crustal stress of a mine.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide intelligent equipment for stress relief ground stress measurement and a using method thereof, which can be used for quickly, conveniently and effectively carrying out construction of underground ground stress measurement of a mine, provide scientific basis for stability analysis of surrounding rocks of the mine and realization of safe excavation production of underground engineering, and fully meet the requirements of ground stress test.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides intelligent equipment for stress relief ground stress measurement, which comprises combined measuring equipment and handheld signal transmission equipment; the combined measuring equipment comprises a drill bit drilling combined device, a sensor device and a shell;
the drill bit drilling combination device comprises an inner layer diamond-impregnated drill bit, an interlayer inclined diamond-impregnated drill bit and an outer layer diamond-impregnated drill bit which are sequentially attached and nested together from inside to outside through a clamp spring device, and the top of the drill bit drilling combination device is also provided with a cutting tool and a water gap;
the drill bit drilling combination device is also internally provided with a gear transmission system for realizing the switching work of the inner layer diamond-impregnated drill bit, the interlayer inclined diamond-impregnated drill bit and the outer layer diamond-impregnated drill bit;
the sensor device comprises a gyroscope device and a strain measuring device capable of measuring the strain on the wall of the measuring hole; the gyroscope device can reflect the position form of the sensor device and the state of strain flowers in the strain measurement device;
the shell is of a cylindrical barrel structure, the upper section of the shell is used for placing a drill bit drilling combination device, the lower section of the shell is a hollow detachable variable head, the lower section of the shell provides space for the drill bit drilling combination device to move up and down and core, and the bottom of the detachable variable head can be arranged on a drill rod of a drilling machine;
the handheld signal transmission equipment comprises an external signal receiving device, an external signal transmitting device, an external signal processing device, an external data storage device and an external explosion-proof battery which are respectively and electrically connected with the display; the external signal receiving device receives signals sent by the strain measuring device and the gyroscope device and transmits the signals to the external signal processing device, the external signal processing device processes the signals and then displays the processed signals through the display, and meanwhile, the external data storage device stores the received information; and the external signal transmitting device transmits signals to the clamp spring device and the gear transmission system to realize the control of the clamp spring device and the gear transmission system.
Preferably, the clamp spring device is arranged in the matrix of the interlayer inclined diamond-impregnated bit and the inner layer diamond-impregnated bit, the clamp spring device comprises a signal receiver, a signal controller and a first driving motor which are respectively electrically connected with the explosion-proof battery, the output end of the first driving motor is in threaded fit with the clamp spring to control the first driving motor to extend out of the interlayer inclined diamond-impregnated bit or the inner layer diamond-impregnated bit, and the signal receiver, the signal controller and the first driving motor are sequentially electrically connected; the diamond-impregnated bit of intermediate layer slope and the diamond-impregnated bit outer wall of inlayer all open the through-hole that supplies the jump ring to pass, open respectively on outer diamond-impregnated bit inboard and the diamond-impregnated bit inner wall of intermediate layer slope has the recess that matches with the jump ring.
Preferably, the gear transmission system comprises a second driving motor, a signal receiver, an explosion-proof battery, a driving gear and two driven gears, wherein the second driving motor, the signal receiver and the explosion-proof battery are arranged in the interlayer inclined diamond-impregnated bit tire, the driving gear is fixed with an output shaft of the second driving motor, the two driven gears are respectively meshed with the driving gear, and the two driven gears are respectively meshed with chain wheels embedded in the inner wall of the outer layer diamond-impregnated bit and the outer wall of the inner layer diamond-impregnated bit for transmission.
Preferably, the strain measurement device comprises a temperature compensation strain gauge, a common compensation strain gauge, a second signal transmitter, a data storage chip, a signal processing chip and an explosion-proof battery which are sequentially connected in series and electrically connected together, and three groups of strain flowers are further arranged in the strain measurement device.
Preferably, the gyroscope device comprises a gyroscope, an explosion-proof battery and a first signal emitter which are electrically connected together in sequence.
Preferably, the top of the interlayer inclined diamond-impregnated bit matrix is horn-shaped, and the horn-shaped inclination angle is 5-10 degrees.
Preferably, the internal and external signal transmitting devices of the handheld signal transmission equipment are used for transmitting signals to the signal receiver in the clamp spring device and the signal receiver in the gear transmission system, so that the control over the clamp spring device and the gear transmission system is realized; the external signal processing device transmits the received signal to an external display for displaying, and simultaneously stores the signal in the external data storage device.
The invention also provides a use method of the intelligent device for stress relief ground stress measurement, which is characterized by comprising the following steps:
s1: designing a test point position, a horizon, an azimuth angle, an opening angle and an inclination angle parameter according to the mine geological data;
s2: installing and fixing a drilling machine according to the on-site working condition, installing the combined measuring equipment on the drilling machine, and carrying out directional drilling work by using a compass and a slope ruler to carry out preset azimuth angles and inclination angles;
s3: when the hole is deeply drilled to the tested depth, the drilling machine is pushed back for a certain distance, a handheld signal transmission device is used for transmitting a signal to a clamp spring device on the inner-layer diamond-impregnated bit, and a clamp spring on the inner-layer diamond-impregnated bit is controlled to be withdrawn from a groove on the inner wall of the interlayer inclined diamond-impregnated bit;
s4: starting a gear transmission system in the interlayer inclined diamond-impregnated bit tire body, and lifting the inner layer diamond-impregnated bit device by a height a by controlling a second driving motor;
s5: starting a clamp spring device on the inner-layer diamond-impregnated bit device, so that the clamp spring rebounds to enter a groove on the inner wall of the interlayer inclined diamond-impregnated bit;
s6: starting a drilling machine, and carrying out small hole drilling work, wherein the drilling depth is a;
s7: after the small hole is drilled, starting a clamp spring device on the inner-layer diamond-impregnated bit to enable the clamp spring to retract from a groove on the inner wall of the interlayer inclined diamond-impregnated bit, and reading and recording state data of the gyroscope and the strain measuring device through a display at the moment;
s8: starting a clamp spring device on the interlayer inclined diamond-impregnated bit to enable the clamp spring to retract from a groove on the outer layer diamond-impregnated bit, starting an internal gear transmission system of a matrix of the interlayer inclined diamond-impregnated bit, and gradually descending the interlayer inclined diamond-impregnated bit along the outer layer diamond-impregnated bit by controlling a second driving motor until the interlayer inclined diamond-impregnated bit is separated from the inner layer diamond-impregnated bit;
s9: starting a drilling machine, drilling by using an outer layer diamond-impregnated drill bit, excavating a stress relief groove, gradually separating a rock core from the action of a surrounding stress field along with the deepening of the stress relief groove, elastically recovering the rock core, and measuring by using a strain measuring device in a sensor device;
s10: and after the drilling depth a is reached, the reading of the display is observed, and when the reading tends to be stable, the drilling is stopped and the core is taken out.
S11: and (5) storing the measurement data and finishing the measurement work.
Preferably, a in steps S4, S6 and S10 takes 40 cm.
The invention has the beneficial effects that: compared with the traditional ground stress measuring equipment, the method can be used for quickly forming holes and measuring the holes at one time, greatly simplifies the construction steps, avoids the occurrence of measuring accidents such as hole collapse and the like caused by construction or complex stratum, improves the measuring efficiency, saves the construction time, can accurately install the sensor equipment and measure the ground stress of the mine, greatly reduces the error of ground stress measurement, solves the problem that the traditional stress relief method cannot measure the deep hole, and has the advantages of repeated recycling of one set of equipment, reduction of the construction and economic cost of the ground stress measurement of the mine and great economic and social benefits.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an integrated metrology apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram (exploded view) of a drill bit drilling assembly according to an embodiment of the present invention;
FIG. 3 is a block diagram of a drill bit drilling assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the connection of various components within a sensor device according to an embodiment of the present invention;
fig. 5 is a schematic frame diagram of a clamp spring structure according to an embodiment of the present invention;
FIG. 6 is a schematic drive diagram of a gear system according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a connection relationship between components in the handheld signal transmission device according to an embodiment of the present invention.
Description of reference numerals:
1. assembling the measuring equipment; 2. a housing; 3. the head can be changed detachably; 4. a cutting tool; 6. a water gap; 7. a clamp spring; 8. a groove; 9. the inner layer is impregnated with a diamond bit; 10. the interlayer is obliquely embedded with a diamond bit; 11. the outer layer is impregnated with a diamond bit; 12. a signal controller; 13. a first drive motor; 14. a signal receiver; 15. an explosion-proof battery; 16. a charging port; 17. a gyroscope; 18. a first signal transmitter; 19. straining flowers; 20. a common compensation strain gage; 21. a second signal transmitter; 22. a data storage chip; 23. a signal processing chip; 24. a temperature compensation strain gauge; 25. a display; 26. an external signal processing device; 27. an external data storage device; 28. an external signal receiving device; 29. an external signal transmitting device; 30. an external explosion-proof battery; 31. a sprocket; 32. a driven gear; 33. the gears are driven.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, an intelligent stress relief stress measurement device comprises a combination measuring device 1 and a handheld signal transmission device; the combined measuring equipment 1 comprises a drill bit drilling combined device, a sensor device and a shell 2; the main body of the combined measuring equipment 1 is 1.2m cylindrical;
the drill bit drilling combination device comprises an inner layer diamond-impregnated bit 9, an interlayer inclined diamond-impregnated bit 10 and an outer layer diamond-impregnated bit 11 which are sequentially attached and nested together from inside to outside through a clamp spring device, and the top of the drill bit drilling combination device is also provided with a cutting tool 4 and a water gap 6; the inner diameter of the outer layer diamond-impregnated bit 11 is 130 mm; the outer diameter of the inner layer diamond-impregnated bit 9 is 36 mm;
the drill bit drilling combination device is also internally provided with a gear transmission system for realizing the switching work of an inner layer diamond-impregnated drill bit 9, an interlayer inclined diamond-impregnated drill bit 10 and an outer layer diamond-impregnated drill bit 11;
the sensor device comprises a gyroscope device and a strain measuring device capable of measuring the strain on the wall of the measuring hole; the gyroscope device can reflect the position form of the sensor device and the state of the strain gauge 19 in the strain measuring device;
the shell 2 is of a cylindrical barrel-shaped structure, the upper section of the shell 2 is used for placing a drill bit drilling combination device, the lower section of the shell 2 is a hollow detachable variable head 3, the lower section of the shell 2 provides space for the drill bit drilling combination device to move up and down and core, and the bottom of the detachable variable head 3 can be installed on a drill rod of a drilling machine;
the hand-held signal transmission equipment comprises an external signal receiving device 28, an external signal transmitting device 29, an external signal processing device 26, an external data storage device 27 and an external explosion-proof battery 30 which are respectively and electrically connected with the display 25; the external signal receiving device 28 receives signals sent by the strain measuring device and the gyroscope device and transmits the signals to the external signal processing device 26, the external signal processing device 26 processes the signals and displays the processed signals through the display 25, and meanwhile, the external data storage device 27 stores the received information; and the external signal transmitting device 29 transmits signals to the clamp spring device and the gear transmission system to realize the control of the clamp spring device and the gear transmission system.
The clamp spring device is arranged in a matrix of the interlayer inclined diamond-impregnated bit 10 and the inner layer diamond-impregnated bit 9, the clamp spring device comprises a signal receiver 14, a signal controller 12 and a first driving motor 13 which are respectively electrically connected with an explosion-proof battery 15, the output end of the first driving motor 13 is in threaded fit with the clamp spring 7 so as to control the output end of the first driving motor to extend out of the interlayer inclined diamond-impregnated bit 10 or the inner layer diamond-impregnated bit 9, and the signal receiver 14, the signal controller 12 and the first driving motor 13 are sequentially electrically connected; all open the through-hole that supplies jump ring 7 to pass on the inlayer diamond-impregnated bit 9 outer wall of intermediate layer slope diamond-impregnated bit 10, open respectively on 11 inboards of outer diamond-impregnated bit and the intermediate layer slope diamond-impregnated bit 10 inner walls have the recess 8 that matches with jump ring 7, and the error is no longer than 0.1 mm.
The gear transmission system comprises a second driving motor, a signal receiver 14, an explosion-proof battery 15, a driving gear 33 and two driven gears 32, wherein the second driving motor, the signal receiver 14, the explosion-proof battery 15, the driving gear 33 and the two driven gears 32 are arranged in the tire body of the interlayer inclined diamond-impregnated bit 10, the driving gear 33 is fixed with an output shaft of the second driving motor, the two driven gears 32 are respectively meshed with the driving gear 33, and the two driven gears 32 are respectively meshed with sprockets 31 embedded in the inner wall of the outer layer diamond-impregnated bit 11; the meshing transmission of the driving gear 33 and the chain wheel 31 can realize that the interlayer inclined diamond-impregnated bit 10 can radially ascend and descend along the inner surface of the outer layer diamond-impregnated bit 11, and can realize that the inner layer diamond-impregnated bit 9 device radially ascends and descends along the interlayer inclined diamond-impregnated bit 10.
The strain measurement device comprises a temperature compensation strain gauge 24, a common compensation strain gauge 20, a second signal transmitter 21, a data storage chip 22, a signal processing chip 23 and an explosion-proof battery 15 which are electrically connected together in series in sequence, wherein one end of the common compensation strain gauge 20 connected with the second signal transmitter 21 and one end of the temperature compensation strain gauge 24 connected with the explosion-proof battery 15 are connected with three groups of strain gauges 19 in parallel;
the temperature compensation strain gauge 24 is used for eliminating the influence of the ground temperature on the strain during the underground construction measurement; the common compensation strain gauge 20 is used for eliminating errors caused by series-parallel connection of circuits; when the strain gage 19, the temperature compensation strain gage 24 and the common compensation strain gage 20 receive signals, the second signal transmitter 21 transmits the received signals to the handheld signal transmission equipment; the signal processing chip 23 and the data storage chip 22 can prevent data loss, and after the signal processing chip 23 processes the signal, the signal is converted into data to be stored on the signal storage chip.
The gyroscope device comprises a gyroscope 17, an explosion-proof battery 15 and a first signal emitter 18 which are electrically connected together in sequence, the gyroscope 17 can visually locate the position and the form of the sensor device, and a measurer can know the state of the strain rosette 19 on the strain measuring device
The 10 matrix tops of the interlayer inclined diamond-impregnated bit are horn-shaped, the horn-shaped inclination angle is 5-10 degrees, and the bottom of the measuring hole can be always kept to be horn-mouth-shaped in the drilling construction process.
The internal and external signal transmitting device 29 of the hand-held signal transmission equipment is used for transmitting signals to the signal receiver 1 in the clamp spring device and the signal receiver 14 in the gear transmission system, so that the control of the clamp spring device and the gear transmission system is realized; the external signal processing device 26 transmits the received signal to the external display 25 for display, and stores the signal in the external data storage device 27.
The embodiment also provides a use method of the intelligent device for stress relief ground stress measurement, which specifically comprises the following steps:
s1: designing a test point position, a horizon, an azimuth angle, an opening angle and an inclination angle parameter according to the mine geological data;
s2: installing and fixing a drilling machine according to the on-site working condition, installing the combined measuring equipment 1 on the drilling machine, and carrying out directional drilling work by using a compass and a slope ruler to carry out preset azimuth angles and inclination angles;
s3: when the hole is drilled to the testing depth, the drilling machine pushes back 70cm, a handheld signal transmission device is used for transmitting signals to a clamp spring device on the inner-layer diamond-impregnated bit 9, and a clamp spring 7 on the inner-layer diamond-impregnated bit 9 is controlled to be withdrawn from a groove 8 on the inner wall of the interlayer inclined diamond-impregnated bit 10;
s4: starting a gear transmission system in the tire body of the interlayer inclined diamond-impregnated bit 10, and lifting the inner layer diamond-impregnated bit 9 device by 40cm by controlling a second driving motor;
s5: starting a clamp spring device on the inner-layer diamond-impregnated bit 9 device, so that the clamp spring 7 rebounds to enter a groove 8 on the inner wall of the interlayer inclined diamond-impregnated bit 10;
s6: starting a drilling machine, and performing small hole drilling work, wherein the drilling depth is 40 cm;
s7: after the small hole is drilled, starting a clamp spring device on the inner-layer diamond-impregnated bit 9 to enable a clamp spring 7 to retract from a groove 8 on the inner wall of the interlayer inclined diamond-impregnated bit 10, and reading and recording state data of a gyroscope 17 and a strain measuring device through a display 25;
s8: starting a clamp spring device on the interlayer inclined diamond-impregnated bit 10 to enable a clamp spring 7 to retract from a groove 8 on the outer layer diamond-impregnated bit 11, starting an internal gear transmission system on a matrix of the interlayer inclined diamond-impregnated bit 10, and gradually descending the interlayer inclined diamond-impregnated bit 10 along the outer layer diamond-impregnated bit 11 by controlling a second driving motor until the interlayer inclined diamond-impregnated bit is separated from the inner layer diamond-impregnated bit 9;
s9: starting a drilling machine, drilling by using the outer-layer diamond-impregnated bit 11, excavating a stress relief groove, gradually separating a rock core from the action of a surrounding stress field along with the deepening of the stress relief groove, enabling the rock core to be elastically restored, and measuring by using a strain measuring device in a sensor device;
s10: after drilling for 40cm, observing the reading of the display 25, and stopping drilling to take out the core when the reading tends to be stable;
s11: and (5) storing the measurement data and finishing the measurement work.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The intelligent stress relief ground stress measurement equipment is characterized by comprising combined measuring equipment (1) and handheld signal transmission equipment; the combined measuring equipment (1) comprises a drill bit drilling combined device, a sensor device and a shell (2);
the drill bit drilling combination device comprises an inner layer diamond-impregnated bit (9), an interlayer inclined diamond-impregnated bit (10) and an outer layer diamond-impregnated bit (11) which are sequentially attached and nested together from inside to outside through a clamp spring device, and the top of the drill bit drilling combination device is also provided with a cutting tool (4) and a water gap (6);
the drill bit drilling combination device is also internally provided with a gear transmission system for realizing the switching work of an inner layer diamond-impregnated drill bit (9), an interlayer inclined diamond-impregnated drill bit (10) and an outer layer diamond-impregnated drill bit (11);
the sensor device comprises a gyroscope device and a strain measuring device capable of measuring the strain on the wall of the measuring hole; the gyroscope device can reflect the position form of the sensor device and the state of a strain rosette (19) in the strain measuring device;
the shell (2) is of a cylindrical barrel-shaped structure, the upper section of the shell (2) is used for placing a drill bit drilling combination device, the lower section of the shell (2) is a hollow detachable variable head (3), the lower section of the shell (2) provides space for the drill bit drilling combination device to move up and down and core, and the bottom of the detachable variable head (3) can be arranged on a drill rod of a drilling machine;
the handheld signal transmission equipment comprises an external signal receiving device (28), an external signal transmitting device (29), an external signal processing device (26), an external data storage device (27) and an external explosion-proof battery (30), wherein the external signal receiving device, the external signal transmitting device, the external data storage device and the external explosion-proof battery are respectively and electrically connected with a display (25); the external signal receiving device (28) receives signals sent by the strain measuring device and the gyroscope device and transmits the signals to the external signal processing device (26), the external signal processing device (26) processes the signals and displays the processed signals through the display (25), and meanwhile, the external data storage device (27) stores the received information; and the external signal transmitting device (29) transmits signals to the clamp spring device and the gear transmission system to realize the control of the clamp spring device and the gear transmission system.
2. The intelligent stress relief crustal stress measurement device according to claim 1, wherein the clamp spring device is arranged in a matrix of the interlayer inclined diamond-impregnated bit (10) and the inner layer diamond-impregnated bit (9), the clamp spring device comprises a signal receiver (14), a signal controller (12) and a first driving motor (13) which are electrically connected with an explosion-proof battery (15), respectively, the output end of the first driving motor (13) is in threaded fit with the clamp spring (7) to control the clamp spring to extend out of the interlayer inclined diamond-impregnated bit (10) or the inner layer diamond-impregnated bit (9), and the signal receiver (14), the signal controller (12) and the first driving motor (13) are electrically connected in sequence; all open the through-hole that supplies jump ring (7) to pass on intermediate layer slope impregnated diamond drill bit (10) and inlayer impregnated diamond drill bit (9) outer wall, open respectively on outer impregnated diamond drill bit (11) inboard and the intermediate layer slope impregnated diamond drill bit (10) inner wall have recess (8) that match with jump ring (7).
3. The intelligent stress relief geostress measurement device according to claim 1, wherein the gear transmission system comprises a second driving motor arranged in the tire body of the interlayer inclined diamond-impregnated bit (10), a signal receiver (14), an explosion-proof battery (15), a driving gear (33) fixed with an output shaft of the second driving motor, and two driven gears (32) respectively meshed with the driving gear (33), wherein the two driven gears (32) are respectively meshed with the inner wall of the outer layer diamond-impregnated bit (11) and the sprocket (31) embedded in the outer wall of the inner layer diamond-impregnated bit (9).
4. The intelligent stress relief stress measurement device according to claim 1, wherein the strain measurement device comprises a temperature compensation strain gauge (24), a common compensation strain gauge (20), a second signal transmitter (21), a data storage chip (22), a signal processing chip (23) and an explosion-proof battery (15) which are electrically connected together in series in sequence, and three sets of strain flowers (19) are further arranged in the strain measurement device.
5. A stress relief stress-measuring smart device according to claim 1, wherein the gyroscope means comprises a gyroscope (17), an explosion-proof battery (15) and a first signal emitter (18) electrically connected together in sequence.
6. The intelligent stress relief crustal stress measurement device according to claim 1, wherein the top of the casing of the interlayer inclined diamond-impregnated bit (10) is trumpet-shaped, and the trumpet-shaped inclination angle is 5-10 degrees.
7. An intelligent stress relief stress measurement device according to claim 1, wherein the hand-held signal transmission device comprises an internal signal transmitter (29) and an external signal transmitter (29) for transmitting signals to the signal receiver (1) in the circlip device and the signal receiver (14) in the gear transmission system, so as to control the circlip device and the gear transmission system; the external signal processing device (26) transmits the received signal to an external display (25) for display and stores the signal in an external data storage device (27).
8. A using method of intelligent equipment for stress relief ground stress measurement is characterized by specifically comprising the following steps:
s1: designing a test point position, a horizon, an azimuth angle, an opening angle and an inclination angle parameter according to the mine geological data;
s2: according to the field working condition, a drilling machine is installed and fixed, the combined measuring equipment (1) is installed on the drilling machine, a compass and a slope ruler are used for orientation, and drilling work with a preset azimuth angle and an inclination angle is carried out;
s3: when the hole is deeply drilled to the tested depth, the drilling machine pushes back for a certain distance, a signal is transmitted to a clamp spring device on the inner-layer diamond-impregnated bit (9) by using handheld signal transmission equipment, and a clamp spring (7) on the inner-layer diamond-impregnated bit (9) is controlled to be withdrawn from a groove (8) on the inner wall of the interlayer inclined diamond-impregnated bit (10);
s4: starting a gear transmission system in the tire body of the interlayer inclined diamond-impregnated bit (10), and lifting the inner layer diamond-impregnated bit (9) by a height a by controlling a second driving motor;
s5: starting a clamp spring device on the inner-layer diamond-impregnated bit (9) device to enable a clamp spring (7) to rebound into a groove (8) on the inner wall of the interlayer inclined diamond-impregnated bit (10);
s6: starting a drilling machine, and carrying out small hole drilling work, wherein the drilling depth is a;
s7: after the small hole is drilled, starting a clamp spring device on the inner-layer diamond-impregnated bit (9) to enable a clamp spring (7) to retract from a groove (8) on the inner wall of the interlayer inclined diamond-impregnated bit (10), and reading and recording state data of a gyroscope (17) and a strain measuring device through a display (25);
s8: starting a clamp spring device on the interlayer inclined diamond-impregnated bit (10), enabling the clamp spring (7) to retract from a groove (8) on the outer layer diamond-impregnated bit (11), starting a tire body internal gear transmission system of the interlayer inclined diamond-impregnated bit (10), and gradually descending the interlayer inclined diamond-impregnated bit (10) along the outer layer diamond-impregnated bit (11) by controlling a second driving motor until the interlayer inclined diamond-impregnated bit is separated from the inner layer diamond-impregnated bit (9);
s9: starting a drilling machine, drilling by using an outer layer diamond-impregnated drill bit (11), excavating a stress relief groove, gradually separating a rock core from the action of a surrounding stress field along with the deepening of the stress relief groove, elastically recovering the rock core, and measuring by using a strain measuring device in a sensor device;
s10: after the drilling depth a is reached, the reading of the display (25) is observed, and when the reading tends to be stable, the drilling is stopped and the core is taken out;
s11: and (5) storing the measurement data and finishing the measurement work.
9. The use method of the intelligent stress relief stress measurement device according to claim 8, wherein a in the steps S4, S6 and S10 takes a value of 40 cm.
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| CN202110300812.8A CN113049161B (en) | 2021-03-22 | 2021-03-22 | Intelligent device for stress relief ground stress measurement and use method thereof |
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