Device and method for monitoring degradation degree of rock mass in hydro-fluctuation belt based on cross-hole sound wave technology
Through cross-hole sound wave technology and clean energy power supply devices, multi-angle and diversified monitoring of the degree of deterioration of rock mass in the deterioration zone is achieved, solving the problem of rock deterioration monitoring, improving data accuracy and safety, and adapting Complex environment and reduce environmental pollution risks.
Patent Information
- Application Number
- CN202411146262.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the slope projects on banks of rivers and reservoir areas with high groundwater levels, rock and soil deteriorate due to groundwater softening and seepage recharge erosion, increasing the risk of slope collapse and instability, and it is difficult for existing technology to effectively monitor the disappearance. The degree of deterioration of the belt rock mass leads to geological disasters.
Using transhole acoustic wave technology, multi-angle and diversified monitoring of the degree of deterioration of rock mass by setting drilling and rotating dials on the rock mass, combining wind and solar power generation power supply, and using probes to perform remote data acquisition and wireless transmission, achieving multi-angle and diversified monitoring of the degree of rock mass deterioration .
Improve data accuracy and security, overcome the single-plane limitations of traditional monitoring methods, achieve more comprehensive and accurate degradation monitoring, reduce manual on-site operations, adapt to complex weather conditions, and reduce environmental impact through clean energy power supply .
Smart Images
Figure CN119105095A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of monitoring the degradation degree of rock mass in a drawdown zone, and in particular to a device and a monitoring method for monitoring the degradation degree of rock mass in a drawdown zone based on a cross-hole acoustic wave technology. Background Art
[0002] In slope projects along the banks of rivers and in reservoirs with high groundwater levels or unobstructed water circulation, rock and soil bodies are often softened and soaked by groundwater or eroded by seepage replenishment, causing slope collapse, instability and other serious threats to slope safety. Especially since the impoundment of the Three Gorges Reservoir, the rock bodies on the banks of the reservoir have been degraded by water and rock for a long time under the conditions of fluctuations in the reservoir water level, which has also significantly reduced the strength of the rock and soil bodies. As time goes by, the degree of deterioration continues to increase, and a large number of unstable slopes or steep dangerous rock bodies are developed, which will constitute serious geological disasters. Therefore, a device and a monitoring method for monitoring the degree of rock deterioration in the drawdown zone are needed. Summary of the invention
[0003] In view of the problems in the above-mentioned prior art, the present invention provides a device for monitoring the degree of degradation of rock mass in a drawdown zone based on cross-hole acoustic wave technology, and its technical solution is as follows: at least two boreholes are arranged on the rock mass in the drawdown zone, and the boreholes are located in a house, a turntable is fixedly arranged above the interior of the house, and a winch with the same number as the boreholes is arranged on the turntable, and the projection of the winch in the vertical direction corresponds to the boreholes, and a probe is arranged at the movable end of the winch.
[0004] As a preferred solution, the depth of the boreholes is 45-50m, and the spacing is 20-25cm, with groundwater acting as a coupling agent for the cross-hole acoustic wave transmission signal.
[0005] As a preferred solution, a power supply system is arranged on the roof of the house, and the power supply system supplies energy to the turntable and the winch through a transmission system.
[0006] As a preferred solution, the power supply system is one or both of a wind power generation device and a solar power generation device.
[0007] As a preferred solution, a water level monitoring device is provided on the rock mass in the drawdown zone.
[0008] As a preferred solution, the house is located above the water level of 175m.
[0009] The present invention also provides a monitoring method for a device for monitoring the degradation degree of rock mass in a drawdown zone based on cross-hole acoustic wave technology, and the method steps are as follows: S1: Turn the turntable to align the probe on the turntable to the top of the borehole, start the winch, and lower the probe to the bottom of the borehole. One of the probes is the transmitting probe, and the other probes are the receiving probes. S2: Perform horizontal measurement, raise the transmitting probe and the receiving probe upward by 10 cm at the same time, complete data collection, repeat the simultaneous lifting operation until the probes are out of the borehole, and then lower the probes to the bottom of the borehole; S3: Perform oblique measurement. The starting height of the transmitting probe is 10 cm lower than that of the receiving probe. Then, the transmitting probe and the receiving probe are raised by 10 cm at the same time to complete data collection. Repeat the simultaneous lifting operation until the probe is out of the borehole, and then lower the probe to the bottom of the borehole. S4: Perform oblique measurement. The starting height of the transmitting probe is 20 cm lower than that of the receiving probe. Then, the transmitting probe and the receiving probe are raised by 20 cm at the same time to complete data collection. Repeat the simultaneous lifting operation until the probe is out of the borehole, and then lower the probe to the bottom of the borehole. S5: Perform oblique measurement. The starting height of the transmitting probe is 10 cm higher than that of the receiving probe. Then, the transmitting probe and the receiving probe are raised by 10 cm at the same time to complete data collection. Repeat the simultaneous lifting operation until the probe is out of the borehole. Then, lower the probe to the bottom of the borehole. S6: Perform oblique measurement. The starting height of the transmitting probe is 20 cm higher than that of the receiving probe. Then, the transmitting probe and the receiving probe are raised by 20 cm at the same time to complete data collection. Repeat the simultaneous lifting operation until the probe is out of the borehole. Then, lower the probe to the bottom of the borehole. S7: Replace another probe as the transmitting probe, and the remaining probes as the receiving probes, and repeat the operations of S2-S6 until each probe has been used as a transmitting probe once, thus completing a complete data collection.
[0010] As a preferred solution, the frequency of data collection is 6 times / year, and the degree of rock degradation in the drawdown zone is monitored when the water level is at 150m, 160m, and 170m during flooding and receding.
[0011] Beneficial effects of the present invention: (1) The present invention reduces the cost of collecting data on site manually. It is safer to remotely control the device. Data can also be collected in complex weather conditions, which improves the accuracy and authenticity of the data. The present invention overcomes the limitation that the previous monitoring probe can only monitor the degradation degree on the plane of the rock mass with one transmission and one reception. The use of the 1 transmission and 15 reception method makes the monitoring area more three-dimensional and the monitoring lines more diversified, making the degradation monitoring data obtained more comprehensive and accurate. (2) The above-mentioned transmission device can be used to remotely transmit to a remote indoor workstation by means of wireless transmission, which increases the comfort of the operator and eliminates the need for monitoring in bad weather. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the device structure in Example 1 of the present invention.
[0013] Figure 2 This is a schematic diagram of the structure of the turntable in Example 1 of the present invention.
[0014] In the figure: 1. Wind power generation device; 2. Solar power generation device; 3. Drilling hole; 4. House; 5. Water level monitoring device; 6. Transmission system; 7. Turntable; 8. Winch; 9. Probe. DETAILED DESCRIPTION
[0015] The present invention is further described in detail below based on the accompanying drawings and specific embodiments.
[0016] Example 1 like Figure 1-2 The device shown is for monitoring the degree of rock degradation in a drawdown zone based on cross-hole acoustic wave technology, including four boreholes 3 arranged on the rock in the drawdown zone, and the boreholes 3 are located in a house 4, a turntable 7 is fixedly arranged above the interior of the house 4, and winches 8 with the same number as the boreholes 3 are arranged on the turntable 7, and the projection of the position of the winch 8 in the vertical direction corresponds to the boreholes 3, and a probe 9 is arranged at the movable end of the winch 8.
[0017] Furthermore, the depth of the borehole 3 is 45-50 m, and the spacing is 20-25 cm, with groundwater acting as a coupling agent for the cross-hole acoustic wave transmission signal.
[0018] Furthermore, a power supply system is arranged on the top of the house 4 , and the power supply system supplies energy to the turntable 7 and the winch 8 through the transmission system 6 .
[0019] Furthermore, the power supply system is a wind power generation device 1 and a solar power generation device 2. The use of these two clean energy sources will not pollute the environment and can also meet the power demand of the entire system.
[0020] Furthermore, a water level monitoring device 5 is provided on the rock mass of the drawdown zone to timely observe the on-site water level conditions.
[0021] Furthermore, the house 4 is located above the water level of 175 m to avoid being submerged due to rising water levels.
[0022] Example 2 A monitoring method for a device for monitoring the degree of rock degradation in a drawdown zone based on cross-hole acoustic wave technology according to Example 1 comprises the following steps: S1: Turn the turntable 7 to rotate the probe on the turntable 7 to align it just above the borehole 3, start the winch 8, and lower the probe 9 to the bottom of the borehole 3, one of the probes 9 is a transmitting probe, and the other probes 9 are receiving probes; S2: Perform horizontal measurement, raise the transmitting probe and the receiving probe upward by 10 cm at the same time, complete data collection, repeat the simultaneous lifting operation until the probe 9 is separated from the borehole 3, and then lower the probe 9 to the bottom of the borehole 3; S3: Perform oblique measurement, the starting height of the transmitting probe is 10 cm lower than that of the receiving probe, then the transmitting probe and the receiving probe are raised by 10 cm at the same time to complete data collection, and the simultaneous lifting operation is repeated until the probe 9 is separated from the borehole 3, and then the probe 9 is lowered to the bottom of the borehole 3; S4: Perform oblique measurement, the starting height of the transmitting probe is 20 cm lower than that of the receiving probe, then the transmitting probe and the receiving probe are simultaneously raised by 20 cm to complete data collection, and the simultaneous lifting operation is repeated until the probe 9 is separated from the borehole 3, and then the probe 9 is lowered to the bottom of the borehole 3; S5: Perform oblique measurement, the starting height of the transmitting probe is 10 cm higher than that of the receiving probe, then the transmitting probe and the receiving probe are simultaneously raised by 10 cm to complete data collection, and the simultaneous lifting operation is repeated until the probe 9 is separated from the borehole 3, and then the probe 9 is lowered to the bottom of the borehole 3; S6: Perform oblique measurement, the starting height of the transmitting probe is 20 cm higher than that of the receiving probe, then the transmitting probe and the receiving probe are simultaneously raised by 20 cm to complete data collection, and the simultaneous lifting operation is repeated until the probe 9 is separated from the borehole 3, and then the probe 9 is lowered to the bottom of the borehole 3; S7: Replace another probe as the transmitting probe, and the remaining probes as the receiving probes, and repeat the operations of S2-S6 until each probe has been used as a transmitting probe once, thus completing a complete data collection.
[0023] Furthermore, the frequency of data collection is 6 times per year, and the degree of rock degradation in the drawdown zone is monitored when the water level is at 150m, 160m, and 170m during flooding and receding.
[0024] After the data from S2 to S6 are arranged and combined, five monitoring paths can be simulated in the vertical direction: 1 transmitting probe for 1 receiving probe, 10 cm downward and 20 cm upward, and 1 transmitting probe for 3 receiving probes to form 3 sets of monitoring data, thus achieving "1 transmitting 15 receiving" cross-hole acoustic wave data monitoring. The probes are switched sequentially and the experiment is repeated three times, and finally there will be 6 sets of monitoring data in the horizontal direction, and finally a more three-dimensional data monitoring of the rock mass in the drawdown zone is achieved.
Claims
1. A device for monitoring the degree of rock degradation in a drawdown zone based on cross-hole acoustic wave technology, characterized in that: The invention comprises at least two boreholes (3) arranged on a rock mass in a drawdown zone, wherein the boreholes (3) are located in a house (4), a turntable (7) is fixedly arranged above the interior of the house (4), and winches (8) are arranged on the turntable (7) with the same number as the boreholes (3), and the projection of the positions of the winches (8) in the vertical direction corresponds to the boreholes (3), and a probe (9) is arranged at the movable end of the winch (8).
2. The device for monitoring the degree of rock degradation in the drawdown zone based on cross-hole acoustic wave technology according to claim 1 is characterized in that: The depth of the boreholes (3) is 45-50 m, and the spacing is 20-25 cm, with groundwater acting as a coupling agent for the cross-hole acoustic wave transmission signal.
3. The device for monitoring the degradation degree of rock mass in the drawdown zone based on cross-hole acoustic wave technology according to claim 1 is characterized in that: A power supply system is arranged on the top of the house (4), and the power supply system supplies energy to the turntable (7) and the winch (8) through the transmission system (6).
4. The device for monitoring the degree of rock mass degradation in the drawdown zone based on cross-hole acoustic wave technology according to claim 3 is characterized in that: The power supply system is one or both of a wind power generation device (1) and a solar power generation device (2).
5. The device for monitoring the degradation degree of rock mass in the drawdown zone based on cross-hole acoustic wave technology according to claim 1 is characterized in that: A water level monitoring device (5) is provided on the rock mass in the drawdown zone.
6. The device for monitoring the degree of rock mass degradation in the drawdown zone based on cross-hole acoustic wave technology according to claim 1 is characterized in that: The house (4) is located 175m above the water level.
7. A monitoring method for a device for monitoring the degree of rock mass degradation in a drawdown zone based on cross-hole acoustic wave technology according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: rotating the turntable (7) to rotate the probe on the turntable (7) to align it directly above the borehole (3), starting the winch (8), and lowering the probe (9) to the bottom of the borehole (3), wherein one of the probes (9) is a transmitting probe and the other probes (9) are receiving probes; S2: Perform horizontal measurement, raise the transmitting probe and the receiving probe upward by 10 cm at the same time, complete data collection, repeat the simultaneous lifting operation until the probe (9) is separated from the borehole (3), and then lower the probe (9) to the bottom of the borehole (3); S3: Performing oblique measurement, the starting height of the transmitting probe is 10 cm lower than that of the receiving probe, then raising the transmitting probe and the receiving probe by 10 cm at the same time, completing data collection, repeating the simultaneous lifting operation until the probe (9) is separated from the borehole (3), and then lowering the probe (9) to the bottom of the borehole (3); S4: Performing oblique measurement, the starting height of the transmitting probe is 20 cm lower than that of the receiving probe, then the transmitting probe and the receiving probe are simultaneously raised by 20 cm to complete data collection, and the simultaneous lifting operation is repeated until the probe (9) is separated from the borehole (3), and then the probe (9) is lowered to the bottom of the borehole (3); S5: Perform an oblique measurement, with the starting height of the transmitting probe being 10 cm higher than that of the receiving probe, and then the transmitting probe and the receiving probe are simultaneously raised by 10 cm to complete data collection, and the simultaneous raising operation is repeated until the probe (9) is separated from the borehole (3), and then the probe (9) is lowered to the bottom of the borehole (3); S6: Perform an oblique measurement, with the starting height of the transmitting probe being 20 cm higher than that of the receiving probe, and then simultaneously raising the transmitting probe and the receiving probe by 20 cm to complete data collection, and repeating the simultaneous raising operation until the probe (9) is separated from the borehole (3), and then lowering the probe (9) to the bottom of the borehole (3); S7: Replace another probe as the transmitting probe, and the remaining probes as the receiving probes, and repeat the operations of S2-S6 until each probe has been used as a transmitting probe once, thus completing a complete data collection.
8. The monitoring method of the device for monitoring the degree of rock mass degradation in the drawdown zone based on cross-hole acoustic wave technology according to claim 7 is characterized in that: The frequency of data collection is 6 times per year, and the degree of rock degradation in the drawdown zone is monitored when the water level is at 150m, 160m, and 170m during flooding and receding.