Device for mounting and recovering slight-shock three-dimensional sensor in all-dimensional deep hole of cataclastic rock mass

Abstract

The invention discloses a device for all-dimensionally mounting and recovering a slight-shock three-dimensional sensor in a deep hole of a cataclastic rock mass. A sleeve is buried into a drilling hole of a rock mass; the bottom end of the sleeve is connected with a base; a conical groove matched with a frustum is formed on the base; the frustum is placed into the conical groove; the three-dimensional sensor is arranged in the frustum; a support frame is arranged on the frustum; a support frame rolling needle bearing is arranged on the support frame; a worm rod is arranged in the bearing; a gear piece matched with a spiral tooth of the worm is also arranged on the support frame; the gear piece is driven by a chain to rotate; a double-lug nut is arranged at the lower end of the worm by a threaded sleeve; a clamping groove is formed in the upper edge of the conical groove; a clamping tooth is arranged on a lug strip corresponding to the clamping groove; one end of the lug strip is arranged on the frustum; the other end of the lug strip is movably connected with one end of a steering pull rod; and the other end of the steering pull rod is movably connected with the double-lug nut. By utilizing the device, the problem that the three-dimensional sensor is difficultly mounted and recovered in the deep hole of the cataclastic rock mass is solved, and the all-dimensionally mounting and recovery of the three-dimensional sensor in the deep hole of the cataclastic rock mass are realized.

Description

technical field [0001] The invention relates to the field of microseismic monitoring, in particular to a microseismic three-way sensor fragmentation rock mass omnidirectional deep hole installation and recovery device, which is suitable for reservoir water storage, nuclear waste storage, underground storage of greenhouse gases, geothermal engineering, and open-air slope safety Safety monitoring, evaluation and management of operation, fault orientation of oil and gas exploitation, oil production stability of oil and gas wells, rockburst, roof collapse, ground pressure impact and other disasters induced by mining exploitation. Background technique [0002] Microseismic (microseismic) refers to the microvibration produced by the accumulation of energy in the rock itself in a local area to a certain extent, which induces cracks and destruction inside the rock under external disturbances, and the accumulated energy is released in the form of elastic waves. Microseismic monitorin...

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Problems solved by technology

[0005] The three-way sensor has strict requirements on the installation conditions. Any deviation in azimuth and inclination during the installation process will cause errors in the polarization parameters, and the correct microseismic characteristic parameters cannot be obtained, thereby affecting the accuracy of disaster prediction and forecasting.

[0007] 1) Boreholes in the broken rock mass are prone to collapse and misalignment under excavation vibrations, causing the sensor cables to be easily damaged and cannot be restored, resulting in the inability to monitor microseismic signals;

[0008] 2) It is difficult to achieve good coupling between the three directions of the sensor and the hole wall in deep holes;

[0009] 3) Once the sensor has a problem, it cannot be repaired and replaced;

[0010] 4) The three-way sensor is difficult to install and recover in deep holes, and it is difficult to achieve better monitoring and recovery results, which in turn affects the accuracy of disaster prediction and forecasting

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