CN112903165A - Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method - Google Patents
Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method Download PDFInfo
- Publication number
- CN112903165A CN112903165A CN202110346439.XA CN202110346439A CN112903165A CN 112903165 A CN112903165 A CN 112903165A CN 202110346439 A CN202110346439 A CN 202110346439A CN 112903165 A CN112903165 A CN 112903165A
- Authority
- CN
- China
- Prior art keywords
- display screen
- borehole
- angle
- stress
- dimensional
- 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.)
- Pending
Links
Images
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a drilling stress meter capable of accurately monitoring a three-dimensional installation angle, which comprises a drilling stress meter, wherein an arc-shaped pressurizing plate is arranged on the drilling stress meter, the arc-shaped pressurizing plate comprises an upper pressurizing plate and a lower pressurizing plate, an oil pressure pillow is arranged between the upper pressurizing plate and the lower pressurizing plate, a groove is formed in the upper pressurizing plate, a three-dimensional angle sensor is arranged in the groove, a cable of the three-dimensional angle sensor is led out of a hole and then connected to a handheld angle monitor, and an angle sensor circuit board and a display screen are arranged on the handheld angle monitor. The invention provides a borehole stress meter capable of accurately monitoring a three-dimensional installation angle, which can display the change of the angle of the borehole stress meter in the pushing process in real time, is convenient to install and use, and can adjust the angle quickly and conveniently, and can ensure that an oil pressure pillow is in a horizontal state after the borehole stress meter is installed to measure the stress in the vertical direction and also ensure that the oil pressure pillow is in a vertical state to measure the stress in the horizontal direction.
Description
Technical Field
The invention relates to the field of coal mine rock burst stress monitoring, in particular to a drilling stress meter capable of accurately monitoring a three-dimensional installation angle and a using method.
Background
China is a country rich in coal, poor in oil and less in gas, and with the depletion of shallow coal resources, the mining depth of deep mining (underground mining with the depth of more than 600 m) is increased, the development of mine pressure is intensified, and disastrous accidents such as rock burst and the like frequently occur. With the increase of the mining depth, the disaster is more and more serious, and rock burst becomes one of the most serious dynamic disasters faced by coal mines in China.
Rock burst is a dynamic phenomenon characterized by sudden, sharp and violent destruction generated by the release of deformation energy of coal rock mass around mine roadways and stopes, and is essentially caused by the sudden release of a large amount of elastic energy.
The rock burst problem is essentially the stress problem of coal rock mass, so for monitoring the rock burst, "stress" is the most reliable physical quantity.
At present, a KJ649 coal mine rock burst stress monitoring system which is independently developed and produced can monitor the change of relative stress of a coal body in real time through a borehole stressometer, determine an early warning threshold value of the rock burst monitoring system according to the change trend and the rule of the change, and automatically alarm a coal body stress monitoring area which exceeds the early warning threshold value. When a drilling stress meter at a certain position of a coal mine tunnel monitors that the drilling stress of coal and rock rises to trigger an alarm response mechanism, pressure relief and danger relief are carried out on a pressure relief hole during site construction according to relevant regulations of all levels of anti-impact management files, and the method has important guiding significance for ensuring safe production of coal mines.
The borehole stressometer generally adopts an oil pressure pillow type, and the oil pressure pillow is required to be horizontally installed in a coal body borehole in order to monitor the variation trend of the vertical stress of the coal body.
The drilling stress meter is generally arranged in a drill hole with the diameter phi of 42-45, the depth of the hole is 8-25 meters, all parts are connected according to requirements, and the drilling stress meter is pushed to a specified hole depth to be in place.
The conventional method is to use a push rod with the length of 1 meter, insert the 1 st section of the push rod into a cross-shaped push rod at the tail part of the borehole stress meter, rotate the push rod clockwise by 90 degrees, keep the cross-shaped push rod in a horizontal position, then connect the 2 nd to the nth sections, connect and screw the cross-shaped push rod one by using M6 bolts and nuts, and distribute the stress meter to a preset hole position. If the depth of the laying hole is 15 meters, 15 holes are needed. And when the drilling stress meter reaches the specified hole depth, starting the one-way manual pump, injecting oil to the oil pressure pillow by using the initial stress of 3-5 MPa to enable the oil pressure pillow to be expanded so as to be fully coupled with the drilling hole, then reversing the push rod and withdrawing, loosening the M6 nut, taking out the M6 bolt, and withdrawing the push rod in a joint manner. If mining exists, the drilling hole is deformed under the influence of mining to extrude the arc-shaped pressurizing plate, the pressurizing plate transmits the coal bed stress to the oil pressure pillow to deform the oil pressure pillow, the oil pressure pillow transmits the changed stress to the drilling hole stress sensor through hydraulic oil in the pillow, the sensor converts the stress variation into a current signal, the current signal is displayed on a display screen in real time after passing through an A/D (analog/digital) conversion circuit, and the current signal can also be transmitted to a ground monitoring room through wireless transmission to monitor the change of the vertical stress of the coal body in real time.
The push rods are connected by adopting M6 bolts and nuts, and the connecting holes are phi 6-6.5 mm; the push rod is connected with the borehole stressmeter by adopting a cross-shaped spiral groove connected with a cross-shaped push rod. Although the design requires that the connecting holes are necessarily located in the same plane, due to the common existence of machining errors and the bending and irregularity of the drill hole, the oil pressure pillow of the drill hole stress sensor in the 15-meter deep hole is not located in the horizontal plane to a large extent, but forms an included angle with the horizontal plane. Therefore, the real vertical stress and the change of the surrounding rock can not be effectively measured, the monitoring and early warning of the change of the rock burst stress are not facilitated, and the safety production of the coal mine is not facilitated.
Disclosure of Invention
The invention provides a drilling stress meter capable of accurately monitoring a three-dimensional installation angle and a using method in order to make up for the defects of the prior art.
The invention is realized by the following technical scheme:
a borehole stressometer capable of accurately monitoring a three-dimensional installation angle comprises a borehole stressometer, wherein a circular arc-shaped pressurizing plate is arranged on the borehole stressometer, the circular arc-shaped pressurizing plate comprises an upper pressurizing plate and a lower pressurizing plate, an oil pressure pillow is arranged between the upper pressurizing plate and the lower pressurizing plate, a groove is formed in the upper pressurizing plate, a three-dimensional angle sensor is installed in the groove, a cable of the three-dimensional angle sensor is led out of a hole and then connected to a handheld angle monitor, and an angle sensor circuit board and a display screen are arranged on the handheld angle monitor; the drilling stress meter is provided with a cross-shaped push rod, the drilling stress meter is connected with a drilling stress sensor through an oil inlet steel pipe, and the drilling stress sensor is connected with a one-way manual pump.
Preferably, the drilling stress sensor is respectively connected with the oil inlet steel pipe and the one-way manual pump through a three-way valve.
Preferably, the borehole stressometer is arranged in a borehole, and the borehole stress sensor, the one-way manual pump and the handheld angle monitor are arranged in a roadway.
Preferably, the three-dimensional angle sensor is kept horizontal and integrated with the upper pressurizing plate.
The invention also provides a using method of the borehole stressometer capable of accurately monitoring the three-dimensional installation angle, which comprises the following steps:
the method comprises the following steps: machining a groove on an upper pressure plate of the borehole stressometer by adopting a machining method, placing a three-dimensional angle sensor in the groove, and adjusting the position to ensure that the three-dimensional angle sensor is kept horizontal and is fixed with the upper pressure plate;
step two: leading out a cable of the three-dimensional angle sensor to the outside of the drill hole and connecting the cable to a handheld angle monitor;
step three: an angle sensor circuit board and a display screen are arranged in the handheld angle monitor, and the angle change of the borehole stressometer along the direction of the X, Y, Z axis is measured and read in real time;
step four: define the X axis as 0 horizontally, "-" counterclockwise and "+" clockwise; when the display screen displays the degree of minus, the push rod (12) can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step five: defining the Y axis as pitching and yawing, wherein the horizontal direction of the Y axis is 0 degrees, the anticlockwise direction is "-", and the clockwise direction is "+"; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step six: defining the Z axis as left and right deflection along the axis of the borehole, the Z axis normally being 0 degrees, "-" counterclockwise and "+" clockwise; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the display screen reads back to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position.
Compared with the prior art, the invention has the advantages that:
1. the invention provides a borehole stressometer capable of accurately monitoring a three-dimensional installation angle, which can display the change of the angle of the borehole stressometer in the pushing process in real time, is convenient to install and use, and can adjust the angle quickly and conveniently, ensure that an oil pressure pillow is in a horizontal state after the borehole stressometer is installed so as to measure the stress in the vertical direction, and also ensure that the oil pressure pillow is in a vertical state so as to measure the stress in the horizontal direction (structural stress);
2. the invention can monitor the position of the borehole stressometer in real time during installation, can inquire and store data after installation, and trace construction quality, effectively ensures the installation quality of the borehole stressometer, can accurately acquire the change trend of vertical or horizontal stress of a coal body, provides powerful guarantee and support for monitoring the impact ground pressure stress, is a great improvement on the existing installation mode, and has great application prospect.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of an intrinsically safe borehole stress gauge for KJ649 mine;
FIG. 2 is a horizontal sectional view of the hydraulic ram and the circular arc-shaped pressurizing plate;
FIG. 3 is a schematic view of a push rod connection;
FIG. 4 is a schematic view of the connection between section 1 of the push rod and a cross push rod of a borehole stressmeter;
FIG. 5 is a diagram of the location and force of a borehole stressor meter within a borehole; wherein: left: horizontal, right: deflecting in a counterclockwise direction;
FIG. 6 is a connection diagram of the angle sensor mounting and hand-held angle detector of the present invention;
FIG. 7 is a schematic view of a hand-held angle detector according to the present invention;
FIG. 8 is a horizontal deflection monitoring diagram of the borehole stressor of the present invention;
FIG. 9 is a front and rear pitch angle monitoring diagram of the borehole stress gauge of the present invention;
FIG. 10 is a diagram of borehole stress gauge propulsion line monitoring according to the present invention.
In the figure, 1, a hydraulic pillow; 2. a circular arc-shaped pressurizing plate; 2-1, upper pressure plate; 3. a cross-shaped push rod; 4. an oil inlet steel pipe; 5. a three-way valve; 6. a borehole stress sensor; 7. a one-way manual pump; 8. a roadway; 9. a coal wall; 10. a coal body; 11. drilling; 12. a push rod; 12-1, section 1 of the push rod; 12-2, section 2 to section n of the push rod; m6 bolt; m6 nut; 15. a groove; 16. an angle sensor; 17. a cable; 18. a hand-held angle monitor; 18-1, an angle sensor circuit board and a display screen.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.
For a better understanding of the present invention, the background art is further described below in conjunction with FIGS. 1-5.
As shown in fig. 1-2, the borehole stressometers generally adopt an oil pressure pillow type, and in order to monitor the variation trend of the vertical stress of the coal body, the oil pressure pillow 2 needs to be horizontally installed in a coal body borehole 11. The borehole stressometer is generally arranged in a borehole 11 with phi of 42-45, and the depth of the borehole is 8-25 m. The components are connected according to the diagram, and the borehole stressmeter is pushed into position to the specified hole depth.
As shown in figure 3, the conventional method is to use a push rod 12 with the length of 1 meter, insert the 1 st section 12-1 of the push rod into a cross push rod 3 at the tail part of the borehole stress meter, rotate 90 degrees clockwise, keep the cross push rod 3 in a horizontal position, then connect the 2 nd section to the nth section 12-2, connect and tighten the sections one by using M6 bolts 13 and M6 nuts 14, and distribute the borehole stress meter to the hole position of a preset borehole 11. If the depth of the drilled hole is 15 meters, 15 drilled holes are needed. And when the drilling stress meter reaches the specified hole depth, starting the one-way manual pump, injecting oil to the oil pressure pillow 1 by using the initial stress of 3-5 MPa to enable the oil pressure pillow 1 to be expanded so as to be fully coupled with the drilling hole, then reversing the push rod 12, loosening the M6 nut, taking out the M6 bolt, and withdrawing a section by section. If mining exists, the drilling hole is deformed under the influence of mining to extrude the arc-shaped pressurizing plate, the pressurizing plate transmits the coal bed stress to the oil pressure pillow to deform the oil pressure pillow, the oil pressure pillow transmits the changed stress to the drilling hole stress sensor through hydraulic oil in the pillow, the sensor converts the stress variation into a current signal, the current signal is displayed on a display screen in real time after passing through an A/D (analog/digital) conversion circuit, and the current signal can also be transmitted to a ground monitoring room through wireless transmission to monitor the change of the vertical stress of the coal body in real time.
As shown in fig. 4-5, the connection of the push rod adopts M6 bolt and nut connection, and the connection hole is phi 6-6.5 mm; the push rod is connected with the borehole stressmeter by adopting a cross-shaped spiral groove connected with a cross-shaped push rod. Although the design requires that the connecting holes are necessarily located in the same plane, due to the common existence of machining errors and the bending and irregularity of the drill hole, the oil pressure pillow of the drill hole stress sensor in the 15-meter deep hole is not located in the horizontal plane to a large extent, but forms an included angle with the horizontal plane. Therefore, the real vertical stress and the change of the surrounding rock can not be effectively measured, the monitoring and early warning of the change of the rock burst stress are not facilitated, and the safety production of the coal mine is not facilitated.
In summary, the current borehole stressmeter cannot guarantee horizontal installation. The analysis reason is that firstly, the installation is not carried out according to the requirement probably because of illegal operation of constructors; secondly, the installation process lacks the monitoring means, and constructor can't judge whether be in the horizontality after the drilling stressometer installation.
In order to solve the problems existing in the installation process of the drilling stress gauge, the invention provides the drilling stress gauge capable of accurately monitoring the three-dimensional installation angle, the change of the angle of the drilling stress gauge in the pushing process can be displayed in real time, the installation and the use are convenient, the angle is quickly and conveniently adjusted, the oil pressure pillow can be ensured to be in a horizontal state after the installation of the drilling stress gauge so as to measure the stress in the vertical direction, and the oil pressure pillow can also be in a vertical state so as to measure the stress (structural stress) in the horizontal direction.
As shown in fig. 6-7, a borehole stressometer capable of accurately monitoring a three-dimensional installation angle comprises a borehole stressometer, wherein a circular arc-shaped pressurizing plate 2 is arranged on the borehole stressometer, the circular arc-shaped pressurizing plate 2 comprises an upper pressurizing plate 2-1 and a lower pressurizing plate, an oil pressure pillow 1 is arranged between the upper pressurizing plate 2-1 and the lower pressurizing plate, a groove 15 is arranged on the upper pressurizing plate 2-1, a three-dimensional angle sensor 16 is arranged in the groove 15, the position of the three-dimensional angle sensor 16 is kept horizontal and is integrated with the upper pressurizing plate, a cable 17 of the three-dimensional angle sensor 16 is led out of a hole and then is connected to a handheld angle monitor 18, and an angle sensor circuit board and a display screen 18-1 are arranged on the handheld angle monitor 18; the drilling stress meter is provided with a cross-shaped push rod 3, the drilling stress meter is connected with a drilling stress sensor 6 through an oil inlet steel pipe 4, and the drilling stress sensor 6 is connected with a one-way manual pump 7. In this embodiment, drilling stress sensor 6 passes through three-way valve 5 and connects oil feed steel pipe 4 and one-way manual pump 7 respectively, and the drilling stressometer sets up in drilling 11, and drilling stress sensor 6, one-way manual pump 7, handheld angle monitor 18 are in tunnel 8. The handheld angle monitor 18 has a storage function, so that the position of the borehole stressometer can be monitored in real time during installation, the installation quality of the stressometer can be traced after installation, and beneficial support can be provided for subsequent pressure analysis.
The invention also provides a using method of the borehole stressometer capable of accurately monitoring the three-dimensional installation angle, which comprises the following steps:
the method comprises the following steps: machining a groove 15 on an upper pressure plate 2-1 of the borehole stressometer by adopting a machining method, placing a three-dimensional angle sensor 16 in the groove, adjusting the position to keep the three-dimensional angle sensor horizontal and fixing the three-dimensional angle sensor with the upper pressure plate 2-1;
step two: leading out a cable 17 of the three-dimensional angle sensor 16 to the outside of the borehole 11 and connecting the cable to a handheld angle monitor 18;
step three: the handheld angle monitor 18 is internally provided with an angle sensor circuit board and a display screen 18-1, and measures and reads the angle change of the borehole stressometer along the direction of the X, Y, Z shaft in real time;
step four: as shown in fig. 8, the X-axis is defined as horizontal 0 °, counterclockwise "-", and clockwise "+"; when the display screen displays the degree of minus, the push rod 12 can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step five: as shown in FIG. 9, the Y-axis is defined as pitch yaw, with the Y-axis being horizontal at 0 °, counterclockwise "-", and clockwise "+"; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step six: as shown in FIG. 10, the Z axis is defined as left and right yaw along the borehole axis, the Z axis is normally 0, counter clockwise "-", clockwise "+"; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the display screen reads back to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position.
In specific implementation, the cable of the angle sensor 16 is connected to the handheld angle monitor, and can also be in wireless connection. Defining an X axis as a left horizontal deflection and a right horizontal deflection; defining the Y axis as pitch yaw; the Z axis is defined as the left and right deflection along the borehole axis.
In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "rear", "horizontal", "vertical", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for describing the present invention but do not require that the present invention be constructed or operated in a specific orientation, and are not to be construed as limiting the present invention. The term "connected" in the present invention is to be understood broadly, and may be, for example, connected or detachably connected; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.
The borehole stressometer capable of accurately monitoring the three-dimensional installation angle of the present embodiment is only an example for clearly illustrating the structure, the using method and the using field of the present invention, and is not a limitation to the embodiments of the present invention. Various modifications and alterations may occur to those skilled in the art in light of the foregoing description. It is not necessary, and may not be exhaustive, of all embodiments. And such obvious variations or modifications which are based on the teaching of the present invention are considered to be within the scope of the invention.
Claims (5)
1. The utility model provides a can accurate drilling stressmeter who monitors three-dimensional installation angle which characterized in that: the device comprises a drilling stress meter, wherein a circular arc-shaped pressurizing plate (2) is arranged on the drilling stress meter, the circular arc-shaped pressurizing plate (2) comprises an upper pressurizing plate (2-1) and a lower pressurizing plate, an oil pressure pillow (1) is arranged between the upper pressurizing plate (2-1) and the lower pressurizing plate, a groove (15) is formed in the upper pressurizing plate (2-1), a three-dimensional angle sensor (16) is installed in the groove (15), a cable (17) of the three-dimensional angle sensor (16) is led out of a hole and then connected to a handheld angle monitor (18), and an angle sensor circuit board and a display screen (18-1) are arranged on the handheld angle monitor (18); the drilling stress meter is provided with a cross-shaped push rod (3), the drilling stress meter is connected with a drilling stress sensor (6) through an oil inlet steel pipe (4), and the drilling stress sensor (6) is connected with a one-way manual pump (7).
2. The borehole stress gauge capable of accurately monitoring the three-dimensional installation angle according to claim 1, wherein: the drilling stress sensor (6) is respectively connected with the oil inlet steel pipe (4) and the one-way manual pump (7) through the three-way valve (5).
3. The borehole stress gauge capable of accurately monitoring the three-dimensional installation angle according to claim 1, wherein: the borehole stress meter is arranged in a borehole (11), and the borehole stress sensor (6), the one-way manual pump (7) and the handheld angle monitor (18) are arranged in a roadway (8).
4. The borehole stress gauge capable of accurately monitoring the three-dimensional installation angle according to claim 1, wherein: the three-dimensional angle sensor (16) is kept horizontal and integrated with the upper pressurizing plate.
5. The use method of the borehole stressometer capable of accurately monitoring the three-dimensional installation angle according to any one of claims 1 to 4, is characterized in that: the method comprises the following steps:
the method comprises the following steps: machining a groove (15) on an upper pressure plate (2-1) of the borehole stressmeter by adopting a machining method, placing a three-dimensional angle sensor (16) in the groove, adjusting the position to keep the three-dimensional angle sensor horizontal and fixing the three-dimensional angle sensor with the upper pressure plate (2-1);
step two: leading out a cable (17) of the three-dimensional angle sensor (16) to the outside of the drill hole (11) and connecting the cable to a handheld angle monitor (18);
step three: an angle sensor circuit board and a display screen (18-1) are arranged in the handheld angle monitor (18), and the angle change of the borehole stressometer along the direction of the X, Y, Z axis is measured and read in real time;
step four: define the X axis as 0 horizontally, "-" counterclockwise and "+" clockwise; when the display screen displays the degree of minus, the push rod (12) can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step five: defining the Y axis as pitching and yawing, wherein the horizontal direction of the Y axis is 0 degrees, the anticlockwise direction is "-", and the clockwise direction is "+"; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the reading of the display screen returns to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position;
step six: defining the Z axis as left and right deflection along the axis of the borehole, the Z axis normally being 0 degrees, "-" counterclockwise and "+" clockwise; when the display screen displays the degree of minus, the push rod can be rotated clockwise, so that the display screen reads back to 0 degrees, and the oil pressure pillow is ensured to be in a horizontal position; when the display screen displays the degree of '+', the pushing rod can be rotated anticlockwise, so that the display screen reads back to 0 degree, and the oil pressure pillow is ensured to be in a horizontal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110346439.XA CN112903165A (en) | 2021-03-31 | 2021-03-31 | Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110346439.XA CN112903165A (en) | 2021-03-31 | 2021-03-31 | Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112903165A true CN112903165A (en) | 2021-06-04 |
Family
ID=76109649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110346439.XA Pending CN112903165A (en) | 2021-03-31 | 2021-03-31 | Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112903165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112181A (en) * | 2021-11-26 | 2022-03-01 | 山东科技大学 | Wireless stress monitoring acousto-optic early warning instrument and monitoring early warning method |
-
2021
- 2021-03-31 CN CN202110346439.XA patent/CN112903165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112181A (en) * | 2021-11-26 | 2022-03-01 | 山东科技大学 | Wireless stress monitoring acousto-optic early warning instrument and monitoring early warning method |
| CN114112181B (en) * | 2021-11-26 | 2024-06-04 | 山东科技大学 | Wireless stress monitoring acousto-optic early warning instrument and monitoring early warning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10955574B2 (en) | Rock damage acoustic monitoring system | |
| CN106401651A (en) | Total-tunnel total-process full-section surface deformation monitoring device and method | |
| CN109403954B (en) | Real-time drilling inclinometry deviation correcting device | |
| US10935678B2 (en) | Monitoring system for deformations and destructions of gas storage | |
| CN104454010A (en) | Integrated monitoring and early warning system and early warning method for dynamic condition of deep well drivage construction | |
| CN203519230U (en) | Coal-rock mass stress directional monitoring device | |
| CN106546359B (en) | A kind of surrouding rock stress measuring system | |
| CN101929845B (en) | Roadway surrounding rock separation layer displacement monitor | |
| CN103821125B (en) | A kind of multi-functional multiple position extensometer anchor head | |
| CN112903165A (en) | Drilling stress meter capable of accurately monitoring three-dimensional installation angle and use method | |
| CN103644986B (en) | A kind of rock pressure [in mine measurement mechanism based on hollow grouting anchor structure | |
| CN113203388B (en) | Automatic measuring device for expansion deformation of liquid injection type protected layer and using method | |
| CN214309234U (en) | Drilling stress meter capable of accurately monitoring three-dimensional installation angle | |
| CN112709534A (en) | Mining deviation-preventing drill bit and drilling method | |
| CN103616001A (en) | Roadway surrounding rock body multipoint bed separation volume monitoring and measuring device and mounting and measuring method | |
| CN204228069U (en) | A kind of underground space is crushed displacement monitor | |
| CN206146897U (en) | A simulation experiment monitoring system for top of roadway board absciss layer | |
| CN115060183A (en) | Monitoring and early warning device for inducing water inrush and sand inrush in mine excavation | |
| CN107505447A (en) | A kind of measurement apparatus for being used to simulate mine roof water drenching amount | |
| CN108593174B (en) | Coal rock mass mining stress monitoring inclusion | |
| CN114235255A (en) | Mining rock mass three-dimensional stress monitoring equipment and method | |
| CN104344785A (en) | Device for automatically testing amount of fine deformation of coal bed | |
| CN113237453A (en) | Automatic measuring device and method for expansion deformation of push-expansion type protected layer | |
| CN203657778U (en) | Multipoint separation layer value monitoring and measuring device of roadway surrounding rock body | |
| CN111691920A (en) | Coal mine rock burst stress safety monitoring system and use method |
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 |