某市政边坡失稳模式分析及加固设计

Instability model analysis and reinforcement design of amunicipal slope

市政边坡加固设计,应该建立在对边坡失稳模式分析的基础上,采用有限元法以有效、方便地探究其失稳模式。以莆田市内某市政边坡为研究对象,选取稳定性最差的两个剖面作为典型断面,分析其失稳模式和稳定性,并基此失稳模式分析,采取锚杆加固,排水沟和护面墙进行针对性的行边坡防护;通过有限元分析加固后的失稳模式变化,结合极限平衡法分析该边坡加固效果。

The reinforcement design of municipal slopes should be based on the analysis of modes of slope failure,and the finite element method can be used to explore the failure modes effectively and conveniently.A municipal slope in Putian City is taken as the research object and two sections with the worst stability was selected as typical sections to analyze its instability mode and stability.Based on the analysis of instability mode of the slope,anchor rod reinforcement and drainage ditch and the protective wall was adopted as the measure of slope protection.Through the finite element analysis of the instability mode change after reinforcement and the limit equilibrium method,the slope reinforcement effect is analyzed.