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Dynamic monitor for landslide and collapse

A technology of dynamic monitoring and detection device, applied in measurement devices, re-radiation of electromagnetic waves, radio wave measurement systems, etc., can solve problems such as poor effectiveness and timeliness, high cost, and problems in monitoring point maintenance.

Inactive Publication Date: 2002-03-06
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effectiveness and timeliness of the forecast are poor, and it is basically impossible to test the two important parameters of the instantaneous velocity and acceleration of the development of geological disasters such as landslides.
Moreover, many systems in the currently more effective landslide testing methods are quite complicated, and can only be used in one place to set up a station for fixed use. It is troublesome to set up a station or install a device, and it will be scrapped after the disaster occurs, and the cost is too high.
The maintenance of monitoring points is also a problem

Method used

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  • Dynamic monitor for landslide and collapse
  • Dynamic monitor for landslide and collapse
  • Dynamic monitor for landslide and collapse

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Embodiment Construction

[0013] Such as figure 1 As shown, the base 2 is provided with a laser 1, and the laser 1 is preferably a laser with good monochromaticity and long coherence length, such as an Ar ion laser with a certain power, a He-Ne laser or a He-Cd laser, etc., so as to carry out long-distance Monitoring; the base 2 is also provided with a level adjustment device 4, a levelness detection device 3 and a shock absorber 5 to ensure the normal operation of the laser and other components. On the optical path of the laser 1, reflective mirrors 13, 13', collimating mirror 6, movable beam expander 7 and two-dimensional rotating mirror 8 that can be added or taken out according to needs are arranged in sequence, so as to adjust the beam direction and line or face scan. After the light beam emitted by the laser 1 hits the detection object through the mirrors 13, 13', the collimating mirror 6, the beam expander 7 and the two-dimensional rotating mirror 8, a part of it will be reflected back. The re...

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Abstract

A dynamic monitor of landslide or collapse is composed of laser device, the units installed on the base of said laser device as horizontal regulator, horizontal level meter, damper and microscope forreceiving the light reflected from the object to be monitored, the collimator, movable beam diffuser and deflector in the optical channel of laser device, the optical sensor and amplifier in the optical channel of microscope, spectral analyzer, and computer. It can forcast the generation of landslide and collapse earlier.

Description

technical field [0001] The invention relates to a monitoring device for geological disasters, in particular, it is a device for dynamically monitoring geological disasters such as landslides, collapses, embankments and ground subsidence. The device uses the Doppler effect of laser and the interference phenomenon of laser to Real-time monitoring of geological disasters such as landslides and collapses. Background technique [0002] Landslide is a serious geological disaster. The monitoring and forecasting of landslide is related to national property, people's life safety and social stability. With the launch of the Three Gorges Project, large-scale reservoir projects, and large-scale highway and railway projects, the climate and ecological environment have deteriorated, and geological disasters such as landslides, debris flows, embankment bursts, landslides, roadbeds, and engineering foundations have become more frequent, and the losses caused by them have also increased. ge...

Claims

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Application Information

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IPC IPC(8): G01S17/50G01S17/88G01V1/16G01V1/30
Inventor 杨勇
Owner HUAZHONG UNIV OF SCI & TECH
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