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Landslide control prediction method

A technology for slopes and deformable bodies, which is applied in the field of monitoring and forecasting of natural disasters, and can solve problems such as landslide forecasting that has not been well solved.

Inactive Publication Date: 2008-09-17
POWERCHINA CHENGDU ENG
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Problems solved by technology

The problem of landslide prediction has not been well solved

Method used

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Embodiment Construction

[0018] The present invention will be further described below by means of the accompanying drawings and examples.

[0019] The landslide monitoring and forecasting method of the present invention comprises the following steps;

[0020] (1) Carry out geological survey on the area where slope deformation is found;

[0021] (2) Establish a surface displacement monitoring network for landslide deformation bodies;

[0022] (3) record monitoring data, generate the sequence data point curve of the cumulative displacement s and time t of the landslide deformation body;

[0023] (4) Carry out mathematical fitting to sequence data point curve, establish the prediction model of the accumulative displacement s and time t of landslide deformation body;

[0024] (5) Make a forecast based on the forecast model.

[0025] After the slope deformation phenomenon is found in step (1), the distribution of cracks can be investigated by geological survey, the plane distribution range, thickness, m...

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Abstract

The invention discloses a landslide monitoring and forecasting method with accurate forecasting result in monitoring and forecasting field of natural hazard. The method comprises the following steps: (1) performing geologic examination to the area with slop deformation; (2) establishing the ground displacement monitoring network of the slope deformable body; (3) recording the monitoring data and generating the serial data point curve of the accumulated displacement s and time t of the slope deformable body; (4) the serial data point curve being subjected to maths fitting and generating the precasting model of the accumulated displacement s and time t of the slope deformable body; (5) precasting based on the precasting model. The method not only accurately monitors the overall process of the slop deforming, but also accurately precasts the slope deformation advancing several days, even of several hours; in addition, the method has features of neatness and quickspeed and is suitable for monitoring and forecasting the slope on a great variety of topographty, geologic conditions.

Description

technical field [0001] The invention belongs to the field of monitoring and forecasting of natural disasters, in particular to a monitoring and forecasting method of landslides. Background technique [0002] Affected by factors such as river scouring, groundwater activity, earthquakes, and artificial slope cutting, the soil or rock mass on the slope slides down the slope as a whole or scattered along a certain weak surface or weak zone under the action of gravity. phenomenon known as landslides. Landslide is a serious natural disaster. The landslide deformation process can generally be divided into three stages: initial deformation, gentle deformation and accelerated deformation. In the initial deformation stage, slope deformation began to appear, and intermittent cracks appeared on the surface, but the displacement of the entire landslide deformation body was small; after entering the gentle deformation stage, more deformation cracks appeared on the surface, and formed al...

Claims

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Application Information

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IPC IPC(8): G01V8/00
Inventor 彭仕雄杨建宋彦刚
Owner POWERCHINA CHENGDU ENG
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