High-coupling microseismic signal acquisition device and method in rock mass

CN118746850BActive Publication Date: 2025-09-23PINGAN COAL MINING ENG RES INST CO LTD +2
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Patent Information

Application Number
CN202410915471.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-09-23
Estimated Expiration
2044-07-09

AI Technical Summary

Technical Problem

Existing microseismic sensors installed in rock masses suffer from poor signal coupling, high noise interference, high cost, and difficulty in recycling, which affects the effectiveness and economy of microseismic monitoring.

Method used

The rock riveting mechanism, coupling noise reduction mechanism and sensor control mechanism are adopted. The sensor is installed through drilling and the noise reduction material is injected through the grouting pipe to achieve high coupling and signal transmission between the sensor and the rock. Combined with the design of conductive bolts and springs, full contact between the sensor and the probe is ensured, noise interference is reduced, and the recycling of the sensor is supported.

Benefits of technology

It improves the acquisition rate of microseismic signals and the recycling rate of sensors, reduces noise interference, reduces costs, improves work efficiency and installation success rate, and meets the safe production needs of microseismic monitoring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a high-coupling microseismic signal acquisition device and method in a rock mass, belonging to the field of microseismic monitoring technology. The present invention includes three structural units, the first being a rock mass riveting mechanism, which is equipped with an outer sleeve, a pointed head, a fixed cover, and a pre-tightening bolt; the second being a coupling noise reduction mechanism, which is equipped with a probe, a slurry chamber, a partition, and a grouting pipe; and the third being a sensor control mechanism, which is equipped with an inner sleeve, a fixed inner plate, a conductive bolt, a spring, and a cavity guide tube; after drilling a hole in the rock mass, the rock mass riveting mechanism, the coupling noise reduction mechanism, and the sensor control mechanism coordinate operations to complete the recyclable high-strength coupling and low-noise fixed installation of the microseismic sensor. The present invention is suitable for microseismic monitoring projects in tunnels, mines, etc., simplifies the construction process, improves work efficiency, solves the problems of excessive noise interference to microseismic sensors in the rock mass, difficulty in recovery, and high cost, and meets the demand for efficient microseismic monitoring.
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Citation Information

Patent Citations

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    CN110596750A

  • Method for pretightening and installing microseismic sensor of underground coal mine anchor rod

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  • Micro-seismic sensor cyclic installation device and installation and recovery method

    CN117075189A

  • Micro-seismic probe installer and micro-seismic detection system for underground coal mine anchor rod

    CN215672288U

  • High-coupling mounting assembly and device for micro-seismic sensor in rock mass

    CN222701960U