高陡边坡桥台稳定性分析及处治

Stability Analysis and Treatment of Bridge Abutment with High Steep Slope

高速公路运营过程中,高陡边坡桥台受地形、地质及自然条件等因素影响,易降低边坡稳定性影响桥台安全。以临县至离石高速公路枣林互通1号桥为工程背景,分析探讨桥台边坡水毁产生的原因,结合勘察资料及计算结果,提出了综合的边坡处治方案。通过Plaxis有限元计算软件模拟得出边坡处治前后的最大应力值、处治后位移以及安全系数,验证得到预期效果,为类似的工程提供参考依据。

During the operation of expressways,the influence of terrain,geology and other natural conditions of the bridge abutment with high steep slope is easy to reduce the slope stability and affect the abutment safety.In this paper,taking the Zaolin No.1 Interchange Bridge of Linxian to Lishi Expressway as the engineering background,the cause of the water damage of the abutment slope is analyzed and discussed.Combined with the survey data and calculation results,the comprehensive slope treatment scheme is put forward.The maximum stress value of the slope before and after the treatment,the displacement after the treatment,and the safety factor are obtained by the simulation with Plaxis finite element calculation software,which verifies the expected effect and provides reference for similar engineering.