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Landslide monitoring and early warning method and system based on second-order work

A monitoring and early warning, monitoring center technology, applied to alarms, instruments, etc., can solve problems such as lack of scientific basis and blindness, and achieve the effect of improving accuracy

Pending Publication Date: 2021-06-18
YANGO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selection of landslide monitoring and early warning indicators mainly relies on empirical judgment, which lacks scientific basis and has a certain degree of blindness

Method used

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  • Landslide monitoring and early warning method and system based on second-order work
  • Landslide monitoring and early warning method and system based on second-order work
  • Landslide monitoring and early warning method and system based on second-order work

Examples

Experimental program
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Embodiment 1

[0036] Please refer to figure 1 with 8 , a landslide monitoring and early warning method based on second-order work, comprising steps:

[0037] S1. Several sensors in the data acquisition device respectively collect the stress data and strain data of the landslide to be monitored, and send them to the monitoring center;

[0038] The actual use includes the following steps:

[0039] a, select the middle and lower part of the potential landslide body as the landslide disaster monitoring and early warning area, according to the previous site survey, determine the position of the borehole in the area to be monitored to carry out the drilling operation, and the borehole diameter is slightly larger than the outer diameter of the thin-walled open metal cylinder;

[0040] b. In the area of ​​the slope to be monitored, the data acquisition devices are arranged in the style of plum blossom piles, with a spacing of 2.0 to 3.0m, arranged in 2 to 5 rows, and the number of each row is 3 t...

Embodiment 2

[0061] Please refer to Figure 2-7 , a landslide monitoring and early warning system 1 based on second-order work, including a data acquisition device 2 and a monitoring center 3;

[0062] The data acquisition device 2 includes a metal cylinder 4, several sensors and an anti-interference signal transmission cable 7;

[0063] The anti-interference signal transmission cable 7 is arranged inside the metal cylinder 4;

[0064] The sensor includes a stress sensor 5 and a strain sensor 6, and the stress sensor 5 and the strain sensor 6 are alternately arranged on the metal cylinder 4, and are respectively electrically connected to the anti-interference signal transmission cable 7;

[0065] The anti-interference signal transmission cable 7 is electrically connected to the monitoring center 3;

[0066] Several sensors in the data acquisition device 2 respectively collect stress data and strain data of the landslide to be monitored, and send them to the monitoring center 3;

[0067]...

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Abstract

The invention provides a landslide monitoring and early warning method and system based on second-order work. The method comprises the steps that the stress data and strain data of a to-be-monitored landslide are collected respectively through a plurality of sensors in a data collection device, and the data are transmitted to a monitoring center; the monitoring center calculates overall second-order work according to the received stress data and strain data; the monitoring center carries out monitoring and early warning on the stability of the landslide according to the overall second-order work, firstly monitors the change condition of stress and strain in a potential landslide rock-soil body in real time through a stress sensor and a strain sensor, and then further adopts a second-order work criterion as a criterion of the stability of the landslide for a potential landslide dangerous slope body. A new early warning index is created from the energy perspective, and the accuracy of monitoring and early warning of landslide geological disasters is effectively improved.

Description

technical field [0001] The invention relates to the technical field of landslide monitoring and early warning, in particular to a landslide monitoring and early warning method and system based on second-order work. Background technique [0002] Landslides are a very harmful geological disaster phenomenon. In recent years, landslide accidents have occurred frequently in my country, including large-scale landslide disasters, which have caused a large number of casualties and huge property losses to the people. At the same time, they have also seriously hindered the sustainable development of the regional economy. . The formation of landslide disasters generally develops from the creep deformation stage to the sharp deformation stage and finally reaches the sliding stage. During the formation of landslide disasters, the internal rock and soil body changes all the time, and people cannot identify it with the naked eye. Therefore, it is necessary to use precision instruments to m...

Claims

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Application Information

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IPC IPC(8): G08B21/10
CPCG08B21/10
Inventor 李兆华胡杰
Owner YANGO UNIV