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Method for determining highest risk surface of side slope

A slope and risk technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of large landslide volume, small safety factor, and failure to consider the consequences of slope sliding accidents, achieving strong engineering Meaning, the effect of overcoming oneness

Inactive Publication Date: 2013-05-01
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is worth noting that these methods only give the safety factor of the slope and the most dangerous sliding surface, without considering the consequences of the slope sliding accident
In actual engineering, it is inevitable that the safety factor is small and the sliding surface is also small, but those situations where the safety factor is slightly larger but the landslide volume is large and the consequences are very serious are ignored.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] For an existing cohesive soil slope, the sliding type of the slope is arc sliding; according to the method of the present invention, the determination process of the maximum risk surface of the slope is:

[0020] (1) Establish the risk function of the slope: R=V / F n , where R represents the risk function, F n Represents the safety factor, V represents the volume of the sliding area, and the volume V of the sliding area is used to represent the accident consequence D;

[0021] (2) According to the research of Pan Jiazheng et al., the vertical line and the normal line are drawn through the midpoint of the slope, and then the midpoint of the slope is used as the center, and concentric circles are drawn with radii of 1 / 4 slope length and 5 / 4 slope length respectively; assuming The center of the sliding surface is located in the area contained by these four lines, and the possible sliding surface is an arc surface formed by each center and possible radius; take out one of t...

Embodiment 2

[0028] There is an existing inviscid upper slope, and the sliding type of the slope is non-circular sliding; according to the method of the present invention, the determination process of the maximum risk surface of the slope is:

[0029] (1) Establish the risk function of the slope: R=V / V max +1 / F n , where R represents the risk function, F n Indicates the safety factor, V indicates the volume of the sliding area, V max Indicates the largest possible landslide area volume, using the volume V of the sliding area and the largest possible landslide area volume V max Characterize the consequences of the crash D;

[0030] (2) Determine possible sliding surfaces according to the geological interface of the rock formation, and take out one of the possible sliding surfaces;

[0031] (3) The sliding surface is divided into slices, and the safety factor F of the sliding surface is calculated by the Yang Bu slice method n ;

[0032] (4) Calculate the volume V of the sliding region...

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Abstract

The invention discloses a method for determining the highest risk surface of a side slope. The safety factor and the influence of an accident of the side slope are comprehensively analyzed so that the highest risk factor and the highest risk surface of the side slope are determined. By the method provided by the invention, the oneness of a safety factor method is overcome, and the method has higher engineering significance.

Description

technical field [0001] The invention relates to a method for determining the maximum risk surface of a slope, in particular to a method for determining the most dangerous sliding surface of the maximum slope by comprehensively analyzing the safety factor of the slope and the impact after an accident. Background technique [0002] With the development of social economy, for the slope engineering problems involved in engineering activities, through long-term engineering practice, geologists have formed a relatively complete theoretical system for slope engineering, and through the theory to effectively carry out human engineering activities. to guide. In many fields such as hydropower, transportation, mining, etc., slope engineering is an integral part of the overall project. In order to ensure the safety of project operation and save money, many scholars have conducted extensive research on the evolution law and stability of slopes. . At present, the artificial slopes of op...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 孟庆祥徐卫亚王伟金丹张久长顾锦健张强
Owner HOHAI UNIV
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