Method for preventing landslide and dammed lake disasters

A prevention method and disaster technology, applied in special data processing applications, instruments, climate change adaptation, etc., can solve problems that endanger personal and property safety, and achieve the effect of protecting people's life and property safety

Inactive Publication Date: 2015-11-25
POWERCHINA CHENGDU ENG
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, natural disasters occur frequently in the whole country and even in the world, and incidents that landslides cause barrier lakes and endanger personal and property safety also occur from time to time, and, as far as the applicant knows, the existing technology has not yet provided a Methods of Preventing Damaging Disasters

Method used

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  • Method for preventing landslide and dammed lake disasters

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Embodiment

[0024] The landslide damming disaster prevention method provided by the invention comprises the following steps:

[0025] (1) Calculation of landslide stability

[0026] Through on-site geological survey, remote sensing interpretation, prospecting, geophysical prospecting, and trench exploration, find out the distribution location, scope, structural characteristics and boundary conditions of landslides;

[0027] Determine the physical and mechanical parameters of the landslide through experiments combined with engineering analogy;

[0028] Using two-dimensional limit equilibrium method to calculate the stability coefficient of the landslide;

[0029] According to the stability calculation results, the area where the stability coefficient is less than 1 is the area where the landslide may become unstable.

[0030] (2) Simulation calculation of landslide damming accumulation range

[0031] For the possible instability region with a stability coefficient less than 1, the PFC b...

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Abstract

The invention relates to the field of geological disaster prevention and control, in particular to a method for preventing landslide and dammed lake disasters. The method aims to solve the problem that present geological disasters cause landslide and dammed lakes and endanger personal and property safety. The method for preventing landslide and dammed lake disasters comprises the steps of first surveying distributed position, distribution range, structural features, border conditions and physical and mechanics parameters of landslide, calculating a landslide stability coefficient according to surveyed data; determining possible unstable areas of landslide according to the landslide stability coefficient obtained through calculation, and simulating the unstable dammed lake accumulation range according to the possible unstable areas; and finally arranging an emergency flood discharge channel according to the landslide and dammed lake accumulation range. The method is suitable for preventing the landslide and dammed lake disasters.

Description

technical field [0001] The invention relates to the field of prevention and control of geological disasters, in particular to a method for prevention and control of landslide damming disasters. Background technique [0002] After the large-scale landslide on the river bank loses stability, a barrier body will be formed in the river channel, and then a barrier lake will be submerged in its upstream. Once the barrier body collapses, a burst flood will be formed. The life and property safety of downstream people have been greatly affected. At present, natural disasters occur frequently in the whole country and even in the world, and incidents that landslides cause barrier lakes and endanger personal and property safety also occur from time to time, and, as far as the applicant knows, the existing technology has not yet provided a Methods to prevent and control damming disasters. Contents of the invention [0003] The purpose of the present invention is to provide a kind of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCY02A50/00
Inventor 肖华波张世殊杨静熙王刚夏万洪魏星灿
Owner POWERCHINA CHENGDU ENG
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