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Quick investigation method for geological disaster tendency

A technology for geological disasters and tendencies, applied in geophysical measurement, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, instruments, etc., can solve problems that have not been reported, achieve strong anti-interference ability, simplify detection steps, and avoid errors. Effect

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, the method of large-scale geological hazard investigation based on the constant fretting technology has not been reported yet.

Method used

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  • Quick investigation method for geological disaster tendency

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Embodiment Construction

[0013] In conjunction with the accompanying drawings, a quick survey method for geological disaster tendency is characterized in that it comprises the following steps:

[0014] ① Set up a micro-motion signal detection and processing system; the micro-motion signal detection and processing system includes: a multi-point laser vibrometer, a data analysis processor, and a micro-motion data analysis software; the multi-point laser vibrometer can emit a row of laser vibrometers , for the vibration measurement in the linear area directly in front, it has an automatic calibration function, which can eliminate the influence of its own vibration on the measurement results. The measurement content includes displacement, velocity and acceleration, and then the vibration frequency, amplitude and other data of the measured object can be obtained; the said The data analysis processor is connected to the multi-point laser vibrometer, and the micro-motion data analysis software pre-installed i...

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Abstract

The invention aims to provide a quick investigation method for geological disaster tendency. Frequent micro data of a rock body in a relatively large region is quickly acquired through aerial survey of an unmanned aerial vehicle and a multi-point vibration measurement instrument with laser for quickly investigating geological disasters on a large scale. The method comprises the following steps: (1) setting a micro signal detecting and processing system, wherein the system comprises the multi-point vibration measurement instrument with laser, a data analyzing processor and micro data analyzing software; (2) measuring the frequent micro data of the rock body in a target region and processing the measurement result through the data analyzing processor to obtain a coordinate system of morphologic coordinates of the rock body in the target region and the micro characteristic parameter corresponding to each coordinate point; and (3) comparing and analyzing the micro characteristic parameters, corresponding to the different coordinate points, of the rock body, and after determining dangerous rocks, marking the rocks in corresponding positions in the coordinate system so as to investigate the geological disasters in the region.

Description

technical field [0001] The invention relates to the field of investigation of geological disasters such as dangerous rockfall, in particular to a geological disaster tendency investigation method based on unmanned aerial vehicle survey and constant micro-motion technology. Background technique [0002] Dangerous rockfall refers to the sudden detachment, sliding and falling of dangerous rock blocks from the bedrock under the action of gravity and other disturbances. This kind of geological disaster poses a huge threat to the safety of mountain roads, railways and residential areas. In these areas, dangerous rockfall investigations must be carried out, and then corresponding disposal plans must be established. [0003] The key to the investigation of dangerous rockfall is to judge the connection status between the target rock block and the bedrock. If the two have been disconnected or most of them are disconnected, it is considered to be a dangerous rock block. The current in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01V11/00
Inventor 吴学震蒋宇静王健华王刚
Owner SHANDONG UNIV OF SCI & TECH
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