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Constant micro technology-based holding rockfall investigation method

A technology that often moves slightly and dangerous rocks fall. It is applied to the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids and other directions. It can solve problems that have not been reported, achieve strong anti-interference ability, simplify detection steps, and avoid errors.

Inactive Publication Date: 2015-06-10
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

Although the constant fretting technology is widely used, there is no report on the method of perilous rockfall investigation based on the constant fretting technology

Method used

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  • Constant micro technology-based holding rockfall investigation method

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Embodiment Construction

[0013] In conjunction with the accompanying drawings, a dangerous rockfall investigation method based on constant micro-motion technology is characterized in that it includes the following steps:

[0014] 1. A micro-motion signal detection and processing system is set; the micro-motion signal detection and processing system includes: a scanning laser vibrometer 1, a data analysis processor 2, a micro-motion data analysis software, and an instrument support 3; the scanning laser vibrometer 1, It can scan and measure the vibration of a certain area in front, and has the function of automatic calibration, which can eliminate the influence of the support and its own vibration on the measurement results. The measurement content includes displacement, velocity and acceleration, and then the vibration frequency and amplitude of the measured object can be obtained; The data analysis processor 3 is connected to the scanning laser vibrometer, and can store, display, process and analyze m...

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Abstract

The invention discloses a constant micro technology-based holding rockfall investigation method. The constant micro technology-based holding rockfall investigation method is used for evaluating the stability of a rock body by detecting the constant micro property of the rock body, and comprises the following steps: (1) setting a micro signal detection processing system comprising a scan laser vibration measurement instrument, a data analysis processor, micro data analysis software and an instrument support; (2) acquiring constant micro data of a rock body in a target region by the scan laser vibration measurement instrument, and establishing a corresponding coordinate system; and (3) comparing micro characteristic parameters of a base rock as benchmark data with micro characteristic parameters of other coordinate point, and estimating the fall danger degree of a rock according to the analyzed result, if the constant micro characteristic parameters of a certain coordinate point are greatly different from the benchmark data, showing that the rock corresponding to the position of the point is not actually connected together with the base rock, and the rock is a dangerous rock. According to the method, the constant micro data of a rock body in the target region can be acquired rapidly by the scan laser vibration measurement instrument, and the holding rockfall can be convenient to investigate on a large scale.

Description

technical field [0001] The invention relates to the field of rockfall investigation of dangerous rocks, in particular to a rockfall tendency investigation method of dangerous rocks based on constant micro-motion technology. Background technique [0002] Dangerous rockfall is a common geological disaster in slope engineering and underground engineering. Under the action of gravity and other disturbances, dangerous rock blocks may suddenly break away from the bedrock, slide and fall. When it occurs on the side slope near the road, it often brings serious hazards such as traffic interruption and personal injury. When drilling and blasting is used in underground engineering construction, some rock blocks that have actually been separated from the bedrock but have not yet fallen will often be produced. When the environment is disturbed, they may suddenly fall, which seriously threatens the safety of construction personnel on site. Therefore, in these projects, it is necessary to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
Inventor 蒋宇静吴学震王健华李博王刚
Owner SHANDONG UNIV OF SCI & TECH
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