滨海大道围堰吹砂填筑路基的破坏分析

Failure Analysis for Subgrade Construction with Sand Cofferdam of Binhai Road

随着围堰吹砂填筑路基的应用越来越广,此类滑坡事故经常发生。根据已掌握的唐山市滨海大道砂袋围堰吹砂填筑路基滑坡事故的资料,综合极限平衡法稳定验算、分析并调整参数、有限元数值模拟对比等手段,对此水平平面滑坡进行分析,并总结其成因、变形破坏机制,为此类滑坡的防治提供依据。

Landslide becomes a common occurrence with wider and wider application of sand blasting cofferdam in subgrade construction.Based on the data of landslide accident of sand pocket cofferdam subgrade along Binhai Road,the paper analyzes the horizontal plane landslide and summarizes the reasons and deformation or failure mechanism through the means such as stability checking computation with limit equilibrium method,analyzing and adjusting parameters,numerical simulation with finite element,so as to provide basis of prevention and treatment for such landslide.