Research on Stability and Prevention Measures of Weathered Deposit Slope

2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR) Pub Date : 2021-11-06 DOI:10.1109/ICHCESWIDR54323.2021.9656311

X. Fu, K. Yuan, Dongge Chen, Wenjie Du, Hongru Mei

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Abstract

The prevention and control of geological hazards on the slopes of weathered deposits is a hot and difficult issue in the field of geotechnical engineering. According to the excavation slope characteristics of the highway in Yunnan Province, China, an engineering slope analysis model of weathered deposit body type was established, the three-dimensional finite-difference method was used to analyze the slope stability evolution law during the excavation process, and the support effect of micropile was studied. The research results show that, for the disturbance caused by the substep excavations, the displacement after the micro-pile support is reduced by more than 50% compared with that before the support. The research results can provide theoretical and technical support for understanding the deformation mechanism and suggesting the preventive measures for weathered deposit slope.

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风化堆积物边坡稳定性及防治措施研究

风化矿床边坡地质灾害的防治是岩土工程领域的热点和难点问题。根据云南某高速公路开挖边坡特点，建立了风化堆积体型工程边坡分析模型，采用三维有限差分法分析了开挖过程中边坡稳定性演化规律，并对微桩支护效果进行了研究。研究结果表明，对于分段开挖引起的扰动，微桩支护后的位移比支护前减小50%以上。研究结果可为认识风化堆积物边坡的变形机理和提出防治措施提供理论和技术支持。

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2021 7th International Conference on Hydraulic and Civil Engineering & Smart Water Conservancy and Intelligent Disaster Reduction Forum (ICHCE & SWIDR)

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