Slope instability mechanism judgement method

A slope instability and determination method technology, applied in excavation, computer-aided design, instruments, etc., can solve the problem of no obvious law in the spread and expansion of plastic indicators, and the inability to clearly display the slope instability mechanism and plasticity of slopes with weak bases and dumps Index failure and other issues

Active Publication Date: 2018-09-28
HENAN POLYTECHNIC UNIV
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Problems solved by technology

When this method is applied to the analysis of the slope instability mechanism of the slope with weak basement and dump site, in the process of the instability failure, the weak zone acts as the trigger of the landslide to produce plastic failure almost at the same time, and the plastic zone r

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[0045] In order to better illustrate the present invention, numerous specific details are given in the following detailed description. It will be understood by those skilled in the art that the present invention may be practiced without certain specific details. In some instances, methods and means well known to those skilled in the art are not described in detail, so as to highlight the subject matter of the present disclosure.

[0046] The present invention is further described in detail below with reference to an engineering example of a specific dump site slope, and the given embodiments are only for illustrating the present invention, rather than for limiting the scope of the present invention.

[0047] According to "Slope Engineering Survey Specifications" (YS5230-1996) and "Geotechnical Test Regulations" (SL237-1999), systematic survey, test and survey mapping are carried out to measure the slope of the dump. The survey results show that the dumping site is placed on a...

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Abstract

The invention discloses a slop instability mechanism judgement method, wherein according to the three-dimensional numerical model of the slope, based on the strength reduction method and the slope progressive failure theory, dividing arbitrary points of the slope into four stages of stability, basic stability, under-stability and instability according to the slope failure theory and the slope macroscopic deformation characteristics; and the slope instability mechanism is obtained by comparing and analyzing the evolution characteristics of the stability of each segment of the sliding body underdifferent reduction factor conditions. The method can be used for scientific analysis of landslide hazards and provide a theoretical basis for slope reinforcement.

Description

technical field [0001] The invention relates to the field of determination of the instability mechanism of side slopes, in particular to the field of determination of the instability mechanism of slopes with weak base soil dumps. Background technique [0002] In recent years, my country's open-pit mining work has gradually evolved into large-scale and large-scale. As a place for open-pit mines to accept waste rocks, dumping pits are an indispensable permanent engineering building for open-pit mines to organize production. Due to the influence of geological, geographical and climatic conditions around the open pit mine, the existence of the weak base of the slope has become an important cause of the slope instability of the dump. However, the buckling failure characteristics of the dump slopes with weak slope bases are complex, and the plasticity index has no obvious regularity in the slope failure process, which is different from the buckling failure characteristics of the d...

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Application Information

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IPC IPC(8): G06F17/50E02D17/20
CPCE02D17/20G06F30/20G06F2111/10G06F2119/06
Inventor 王树仁田静张岩龚健吴晓刚任连伟
Owner HENAN POLYTECHNIC UNIV
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