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In-hole micro-shock sensor fixing and recycling device suitable for different apertures

A technology of microseismic sensor and recovery device, which is applied in the direction of seismic signal receivers, etc., can solve problems such as inability to receive signals well, large borehole diameter, and difficulty in realization, and achieve good market prospects, improve accuracy, and facilitate installation and use Effect

Active Publication Date: 2019-01-01
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the former, the waveform needs to be transmitted to the sensor through multiple metal components, and often requires a larger drilling diameter, which is difficult to achieve without large rock drilling machinery; in the latter, only the bottom of the hole is fixed, and looseness may occur under excavation disturbance. off, resulting in the inability to receive the signal well

Method used

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  • In-hole micro-shock sensor fixing and recycling device suitable for different apertures
  • In-hole micro-shock sensor fixing and recycling device suitable for different apertures
  • In-hole micro-shock sensor fixing and recycling device suitable for different apertures

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Embodiment 1

[0064] Such as figure 1 As shown, a microseismic sensor fixing and recovery device suitable for different apertures, including:

[0065] The installation base 7 is equipped with a sensor 8 inside, and the installation base 7 is welded by the center anchor claw 7-1, the sensor sleeve 7-2, the limit anchor claw 7-3 and the drug roll fixing claw 7-5, wherein :

[0066] Such as figure 2 As shown in (a), the sensor sleeve 7-2 is a cylindrical structure with an open top, and the center anchor fluke 7-1, the limit anchor fluke 7-3 and the drug coil fixing claw 7-5 are welded to the sensor sleeve 7-2. On the outer wall; the centering anchor fluke 7-1, the limit anchor fluke 7-3 and the drug volume fixing claw 7-5 are formed by bending a metal sheet, and the cross section is an irregular "L"-shaped sheet structure;

[0067] Such as figure 2 (a) and figure 2 (c) The centering fluke 7-1 shown in (c) is set along the circumference of the top of the sensor sleeve 7-2, the number of...

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Abstract

The invention also relates to an in-hole micro-shock sensor fixing and recycling device suitable for different apertures. According to the device, a sensor is fixedly installed at the bottom of a basein a manner of threaded connection, and expanding materials are used at the bottom of the outer wall of the installation base and the periphery of the installation base, so as to enable the installation base to make close contact with the surrounding rock of a drill hole and to be firmly fixed, thereby achieving the rigid contact of the sensor with the surrounding rock so that the base can bear the long-term blasting disturbance without releasing, can be used for long-term monitoring, reduces the waveform change in a signal transmission process, and guarantees that a test result is much closer to a real value. A grease couplant is disposed between the sensor and the installation base, thereby remarkably improving the signal transmission quality, effectively preventing the sensor and an installation foundation from rusting, guaranteeing that the sensor can be smoothly recycled, and enabling the sensor to be suitable for the severe monitoring conditions, such as high temperature, high humidity and so on. The lengths of a center anchor fluke and a limiting anchor fluke on the outer wall of the installation base can be flexibly adjusted according to the diameter of the drill hole, sothe device can meet the installation requirements of drill holes with different diameters.

Description

technical field [0001] The invention belongs to the technical field of microseismic sensors, and relates to installation, fixation and recovery technology of microseismic sensors used in the monitoring process of linear engineering such as tunnels, and in particular to a microseismic sensor fixing and recovery device in holes suitable for different apertures. Background technique [0002] Rockburst is a common and serious geological disaster in deep buried engineering. As an important means of rockburst monitoring and early warning, microseismic monitoring has been widely used in water conservancy and hydropower, mines, railways and other fields. Microseismic monitoring is mainly to install sensors in the rock mass to obtain the elastic waves released during the rock mass rupture process. Through analysis and processing, the parameters such as the time, location and energy of the rupture are determined, and then the rockburst risk in the monitoring area is assessed. assessme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/20
CPCG01V1/20
Inventor 姚志宾冯夏庭肖亚勋牛文静王睿胡磊张伟
Owner NORTHEASTERN UNIV
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