Recyclable installation device of microseism sensor and installation method
A technology of microseismic sensor and installation device, applied in the direction of seismic signal receiver, etc., can solve the problems of unclear signal propagation path, poor coupling, inconvenient installation and recovery operation of recyclable microseismic sensor, etc., so as to solve the difficulty of recovery and facilitate fixing and overhaul, ensure fixation and monitor effectiveness
Active Publication Date: 2015-02-04
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned recoverable microseismic sensor, such as inconvenient installation and recovery operation, poor coupling, and unclear signal transmission path, and provide a recoverable microseismic sensor with easy operation, little external influence, and unique transmission path. Installation device and installation method
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[0034] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
[0035] The microseismic sensor retrievable installation device as shown in the figure includes a base 2, a number of mounting rods 19, and a double sleeve 9 with two left and right sleeves. The base 2 is fixed in the rock mass 3 by cement mortar 1 At the bottom of the mounting hole 11, in order to facilitate fixing, the structure of the base 2 has the smallest cross section in the middle, and the cross section extending at the upper and lower ends gradually increases; the opening of the mounting hole 11 is provided with a sealing rubber ring 6, and the mounting rod 19 includes one end with an external thread The connecting nut 5 of the internal thread 20 is arranged on the rod body 4 and the B end of 15 and the connecting pin 13 of the annular positioning boss 17 is arranged in the middle of the outer wall. The inner wall of the rod body 4 is close to...
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The invention discloses a recyclable installation device of a microseism sensor and an installation method. The installation device includes a base, installation rods, an injection pipe, a rubber ring and a double sleeve. During installation, the microseism sensor is placed outside an installation hole. The microseism sensor is connected and fixed with the steel base through the installation rods and the double sleeve. The base is coupled with a rock body through cement mortar. Microseism signals are spread to the microseism sensor by the steel base through the installation rods. During recycling, screws on the double sleeve are screwed outside the installation hole so that the microseism sensor is recycled and the installation rods are rotated and pulled out outside the installation hole for recycling. The recyclable installation device of the microseism sensor and the installation method solve a problem that a microseism sensor is difficult to fix, maintain, protect and retract and are capable of receiving and acquiring vibration signals near any position and at the same time, positioning precision of a microseism source is ensured and the cost of microseism monitoring is saved. The recyclable installation device of the microseism sensor and the installation method are widely applicable to microseism monitoring of projects such as underground workshops, tunnels, slopes and roadways and the like.
Description
Technical field [0001] The invention relates to the field of microseismic monitoring, in particular to a retrievable installation device and method for microseismic sensors. Background technique [0002] The deformation and destruction of rock masses are almost always accompanied by the generation, expansion, friction and energy accumulation of cracks, and release energy in the form of stress waves, resulting in microseismic events. Microseismic monitoring technology uses microseismic sensors installed in different directions in space to monitor microseismic events in real time, obtain the time, location, strength and development law of microseismic events, and use this as a basis to infer the state of stress, deformation and failure in the rock mass, and then Analyze and warn the stability of rock mass. This technology has been used as an important means for early warning of disasters such as rock bursts, rock bursts, high and steep slopes, and has been widely used in tunnel en...
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IPC IPC(8): G01V1/20
Inventor 丰光亮冯夏庭姚志宾肖亚勋刘华吉
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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