Dynamic feedback analysis and optimization design method for fissure rock slope based on monitoring information

A technology for rock slope and optimization design, which is applied in the fields of on-site foundation soil survey, excavation, foundation structure engineering, etc., can solve the blindness of the support design method of cracked rock slope, the awkward feedback analysis, and the inability to consider the rock mass structure. The influence of characteristics on slope stability and other issues can achieve the effect of optimizing design and risk prediction, improving safety and economy.

Inactive Publication Date: 2019-11-12
ZHEJIANG ZHONGKE ITASCA ROCK ENG RESDEV +1
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Problems solved by technology

[0002] The structural characteristics of rock mass generally play a controlling role in the deformation mechanism and stability of rock slopes, but the structural characteristics of rock mass are complex and uncertain, and it is difficult to quantify them before the start of the project. The design method of fractured rock slope support is very blind, and cannot consider the impact of specific rock mass structure characteristics on slope stability, which brings certain safety risks and engineering economic problems
[0003] The dynamic feedback analysis method based on numerical means is currently one of the main methods for rock slope optimization design and risk management a

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  • Dynamic feedback analysis and optimization design method for fissure rock slope based on monitoring information
  • Dynamic feedback analysis and optimization design method for fissure rock slope based on monitoring information

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Embodiment Construction

[0029] This embodiment is a method for dynamic feedback analysis and optimal design of a fractured rock slope based on monitoring information, including the following steps:

[0030] Divide the slope excavation and support construction steps. According to the slope scale and construction organization design, the slope is divided into several construction steps, see the attached figure 1 , the slope height of each level is 20-30m, and each construction step includes excavation construction and support structure 9 construction. In this implementation case, the slope is divided into 6 construction steps of ①, ②, ③, ④, ⑤, and ⑥.

[0031] Slope deformation monitoring arrangement. Multiple displacement monitoring points are arranged at the typical elevation of the slope. Generally, at least one monitoring point needs to be arranged on both sides of the controlling structural surface to understand the discontinuous deformation characteristics of the rock mass on both sides of the s...

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Abstract

The invention relates to a dynamic feedback analysis and optimization design method for a fissure rock slope based on monitoring information. According to the dynamic feedback analysis and optimization design method for the fissure rock slope based on the monitoring information, quantitative analysis, optimization design and risk prediction of the engineering stability of the fissure rock slope are achieved, and engineering safety and economical efficiency are improved. According to the technical scheme, the dynamic feedback analysis and optimization design method for the fissure rock slope based on the monitoring information is characterized by comprising the steps that the slope is divided into a plurality of excavation construction steps conducted along the slope from top to bottom, andeach construction step comprises slope excavation construction and supporting structure construction; deformation of each construction step during slope excavation is monitored in real time; and aiming at the n construction step, wherein n is greater than or equal to 1, a fissure rock numerical analysis model is established based on the survey result of the site rock mass structure characteristics. The dynamic feedback analysis and optimization design method is suitable for fissure rock slope treatment in the fields of water conservancy and hydropower, traffic and the like.

Description

technical field [0001] The invention relates to a method for dynamic feedback analysis and optimal design of a fractured rock slope based on monitoring information. It is suitable for the treatment of fractured rock slopes in the fields of water conservancy, hydropower, transportation, etc. Background technique [0002] The structural characteristics of rock mass generally play a controlling role in the deformation mechanism and stability of rock slopes, but the structural characteristics of rock mass are complex and uncertain, and it is difficult to quantify them before the start of the project. The design method of fractured rock slope support is very blind, and cannot consider the influence of specific rock mass structure characteristics on slope stability, which brings certain safety risks and engineering economic problems. [0003] The dynamic feedback analysis method based on numerical means is currently one of the main methods for rock slope optimization design and r...

Claims

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Application Information

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IPC IPC(8): E02D1/02E02D17/20
CPCE02D1/02E02D17/202
Inventor 黄文洪曾继坤潘兵褚卫江周站勇
Owner ZHEJIANG ZHONGKE ITASCA ROCK ENG RESDEV
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