Safety assessment method for stable reliability of consequent bedding rock slope under earthquake action

A technology for rock slope and safety evaluation, applied in excavation, special data processing applications, construction, etc., can solve problems such as ignoring the randomness of earthquake motion, and achieve the effect of rationality and engineering applicability

Inactive Publication Date: 2017-05-24
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, the existing reliability evaluation indexes of slope under earthquake action, such as quasi-static reliability, minimum dynamic reliability, average reliability and average maximum reliability, often ignore the random characteristics of earthquake motion

Method used

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  • Safety assessment method for stable reliability of consequent bedding rock slope under earthquake action
  • Safety assessment method for stable reliability of consequent bedding rock slope under earthquake action
  • Safety assessment method for stable reliability of consequent bedding rock slope under earthquake action

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[0040]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0041] refer to figure 1 , figure 2 with image 3 , a safety evaluation method for the stability and reliability of bedding rock slopes under earthquake action, comprising the following steps:

[0042] Step 1, establishing the dynamic motion equation of the bedding rock slope block.

[0043] In the seismic response analysis of bedding rock slope, the rock mass is regarded as a viscoelastic b...

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Abstract

The invention belongs to the technical field of analysis and assessment of stability of slopes in geotechnical engineering, and discloses a safety assessment method for stable reliability of a consequent bedding rock slope under earthquake action. The safety assessment method comprises the following steps: (1) establishing a kinetic motion equation of rock masses of the consequent bedding rock slope; (2) acquiring seismic response of a shear force and a normal force on a structural surface of the consequent bedding rock slope; (3) acquiring time-histories of dynamical safety factors and degree of reliability of the slope; and (4) establishing the safety assessment method for the stable reliability of the slope under earthquake action. According to the earthquake reliability degree calculating method, random characteristics of earthquake motion are considered. The method is combined to a slope engineering technical specification and actual engineering risks, and the calculation result can really reflect safety conditions of the slope under the earthquake action.

Description

technical field [0001] The invention belongs to the technical field of slope stability analysis and evaluation in geotechnical engineering, and more specifically relates to a method for evaluating the stability, reliability and safety of bedding rock slopes under earthquake action. Background technique [0002] At present, the stability analysis methods of bedding rock slopes under earthquake mainly include quasi-static method, Newmark slider displacement method, time-history analysis method based on numerical simulation software, and simplified and efficient calculation method of seismic response of bedding rock slopes. . Among them, the quasi-static method is a simple method for approximately solving dynamic problems with static methods. It was developed earlier and is still widely used so far. The basic idea is to simplify the earthquake action into an inertial force system and attach it to the research object on the basis of static calculation. The core is to determine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50E02D17/20
CPCE02D17/20G06F30/20
Inventor 陈训龙李逸龚文惠钟旭晗吕伟东
Owner HUAZHONG UNIV OF SCI & TECH
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