重力式挡土墙的修复与加固

Repair and reinforcement of gravity retaining wall

通过一重力式挡土墙倒塌事故实例 ,分析了其倒塌原因为 :断面小 ,砂浆标号低 ,墙后填土不符合要求 ,不按施工规程施工 ,为抢进度未留伸缩缝。提出挡土墙的修复及加固措施。介绍了挡土墙加固构造的施工工艺 ,并给出了其设计验算过程。经施工实践 ,证明方案选择经济、安全、可行。

Through reasons analysis on a collapse accident of gravity retaining wall, which caused by small corss section, low grade of mortar, unqualified fill and incorrect construction regulations, the repair and reinforcement measures are proposed. The new construction plan contains inner reinforcement, backfilling rock and adding anchor reinforcement bar. The construction practice verified the economical efficiency, safety and feasibility of this plan.