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本文根据某顺层高边坡的地质资料,探讨分析了边坡的变形影响因素,并研究分析了边坡的稳定性,FLAC3D软件构建边坡的三维计算模型,分析边坡的破坏模式与防治方案对边坡的支护效果。研究结果表明:边坡未采取治理措施进行开挖时,可能发生2种破坏模式:(1)浅层岩土体的类土质圆弧滑动;(2)受软弱夹层控制,产生中部的剪出变形或沿坡脚的整体滑移-拉裂破坏;根据分析提出了桩锚结合的治理措施,坡脚抗滑桩起到固脚与收坡作用,而预应力锚索框架梁将潜在滑动岩土体与稳定岩体连为一体,有效解决了边坡浅表层及中部的剪出变形问题。监测结果表明,目前边坡的稳定性良好。
Based on the geological data of a high bedding slope, this paper discusses the factors that affect the deformation of the slope and analyzes the stability of the slope. FLAC3D software builds a three-dimensional calculation model of the slope, analyzes the failure mode and prevention and cure of the slope Slope support effect of the program. The results show that two kinds of failure modes may occur when the slope is not dredged: (1) circular soil-like sliding of shallow soil and soil; (2) Deformation or sliding along the slope foot - pull-cracking damage; based on the analysis proposed pile-anchor combination of measures to control the foot-foot anti-slide piles play a solid foot and close the role of the slope, and prestressed anchor cable frame will be the potential sliding rock Soil and the stability of the rock as a single entity, effectively solve the slope surface and the middle of the shear deformation problems. Monitoring results show that the stability of the current slope is good.