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Monitoring system and evaluation method for high and steep slope stability based on microseismic technology

A micro-seismic and stable technology, applied in seismic survey, seismology, seismic signal processing, etc., can solve the problems of reduced monitoring accuracy, transmission mode, and unclear acquisition parameters, so as to reduce monitoring costs and improve the recognition rate of acoustic signals , the effect of reducing the collection cost

Active Publication Date: 2021-12-10
CHONGQING INST OF GEOLOGY & MINERAL RESOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses 5 sensors, which is effective for the monitoring of small areas, but the monitoring accuracy for large areas will be reduced, and the transmission mode and acquisition parameters are not clear

Method used

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  • Monitoring system and evaluation method for high and steep slope stability based on microseismic technology
  • Monitoring system and evaluation method for high and steep slope stability based on microseismic technology
  • Monitoring system and evaluation method for high and steep slope stability based on microseismic technology

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Embodiment 1

[0062] Such as figure 1 , figure 2 As shown, the present embodiment provides a high and steep bank slope stability monitoring system based on microseismic technology, including a data collection station 6 and a data processing and transmission center 5, and the data collection station 6 is arranged uniformly in a grid-like arrangement by several On both sides and the top of the landslide, the data processing and transmission center 5 is used to receive data from several data collection stations 6;

[0063] The data acquisition station 6 includes a geophone 6-3, a data acquisition instrument 6-7, and an acquisition end data transmission device 6-8. The geophone 6-3 is used to detect seismic wave signals, and the geophone 6-3 is placed by drilling In a hole 20-50 meters deep, ensure that the drilling depth is at least 6-4 meters deeper than the bedrock. The upper part is watered with cement slurry 6-5 until it is backfilled with soil 1 meter away from the wellhead, ensuring th...

Embodiment 2

[0072] This embodiment is optimized and defined on the basis of the above-mentioned embodiment 1.

[0073] In order to realize the power supply for the outdoor monitoring system, the data acquisition station 6 also includes a solar panel 6-1, and the solar panel 6-1 supplies power to the detector 6-3, the data acquisition instrument 6-7 and the data transmission equipment respectively.

[0074] The power line 6-2 output by the solar panel 6-1 supplies power to the detector 6-3, the data acquisition instrument 6-7 and the data transmission device 6-8 at the acquisition end respectively, and is connected through a double-shielded cable to avoid ground noise and voltage For the impact of noise on the detector 6-3, the solar panel 6-1 is respectively connected to the detector 6-3, the data acquisition instrument 6-7 and the data transmission device 6-8 at the acquisition end through double-shielded signal lines.

Embodiment 3

[0076] This embodiment is optimized and defined on the basis of the above-mentioned embodiment 2.

[0077] The geophone 6-3 uses a three-component geophone 6-3, and the three-component geophone 6-3 uses a three-channel acceleration sensor with a sensitivity of 250V / m / s, a dynamic range of 110dB, and a sampling frequency that can be set to 200Hz or 500Hz. 0.03Hz-100Hz.

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Abstract

The invention relates to the technical field of monitoring and prevention of geological disasters, in particular to a high and steep bank slope stability monitoring system and evaluation method based on microseismic technology, including a geophone, a data acquisition instrument and data transmission equipment at the acquisition end, and the geophone is used for To detect seismic wave signals, the geophone is placed in a hole 20-50 meters deep by drilling, and the geophone is connected to the data acquisition instrument outside the hole through a cable; the high and steep bank slope stability monitoring of the technical solution of the present invention is adopted The system and monitoring method introduce a regularization exit mechanism into the long-short-term memory model of the iterative neural network to reduce the complexity of calculation of different hidden layer units, and can comprehensively and real-time control the stable state and development trend of high and steep bank slopes, and improve rock The level of early warning and risk control of landslides can not only ensure strict synchronous data collection, but also monitor the state of rock mass in real time and reliably, which has high engineering application value.

Description

technical field [0001] The invention relates to the technical field of monitoring and prevention of geological disasters, in particular to a high and steep slope stability monitoring system and monitoring method based on microseismic technology. Background technique [0002] The monitoring of rocky slopes has always been a weak link in the process of landslide monitoring and early warning. Existing conventional monitoring methods such as surface displacement, deep displacement, pore water pressure and rainfall monitoring methods are ineffective in response to rocky slope deformation monitoring and early warning and forecasting. There are deficiencies in the process. [0003] Chinese patent CN107015269 A discloses "A Real-time Monitoring System and Monitoring Method for Microseismic Fracturing Based on Wireless Network". The system is mainly composed of a server, a wireless microseismic data collection station, an on-site hand-held inspection terminal and a wireless AP. The s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/12G01V1/00G01V1/22G01V1/28
CPCG01N29/12G01V1/288G01V1/223G01V1/001G01V1/282G01V1/01
Inventor 徐洪谢庆明陈立川刘洪陈柏林梁丹苏德桂廖蔚茗
Owner CHONGQING INST OF GEOLOGY & MINERAL RESOURCES