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基于强度折减法边坡稳定性分析研究 被引量:2

Slope Stability Analysis Based on Strength Reduction Method
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摘要 文章首先验证了强度折减法分析边坡稳定性是可行的,并分析了FLAC计算边坡安全系数结果的影响因素,最后通过正交试验设计,对边坡岩土体参数(内摩擦角、粘聚力、重度和弹性模量)和安全系数的灵敏性做了分析研究。研究表明:剪胀角、抗拉强度、模型网格疏密程度及边界范围对FLAC计算边坡安全系数结果会产生影响;在参数敏感性上,岩土体的内摩擦角对安全系数影响最大,其次是粘聚力、重度,弹性模量影响最小。 This paper firstly verifies that the strength reduction method is feasible to analyze the stability of slope,and the influencing factors of FLAC calculation result of slope safety factor are analyzed.Finally,through the orthogonal test design,the sensitivity of the safety factor of rock and soil parameters of slope(internal friction Angle,cohesion,gravity and elastic modulus)is analyzed and studied.The results show that dilatancy Angle,tensile strength,mesh density and boundary range will affect the slope safety factor calculated by FLAC.In terms of parameter sensitivity,the internal friction Angle of rock and soil mass has the greatest influence on the safety factor,followed by the cohesive force and the gravity,and the elastic modulus has the least influence.
作者 黄志涵 Huang Zhihan(Guangdong Yunmao Expressway Co.,Ltd.,Guangzhou,China)
出处 《科学技术创新》 2023年第25期144-147,共4页 Scientific and Technological Innovation
关键词 强度折减法 边坡稳定性 精度 灵敏性 strength reduction method slope stability precision sensitivity
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