边坡挡土墙局部开裂加固方案设计及效果研究

Study on Design and Effect of Local Cracking Reinforcement for Slope Retaining Wall

边坡挡土墙随服役时间增加、自身材料劣化、外部荷载条件改变等因素,局部出现开裂破坏或整体失稳情况时有发生,如何选取合理的加固方案以延续其正常工作状态显得尤为重要。基于此考虑,依托工程实例,采用理论分析、数值模拟和现场测试相结合的方法,首先对某边坡重力式挡土墙局部开裂破坏的原因进行分析,预测可能失稳的概率,并结合场地条件选取合理的加固方案,然后结合现场测试数据对边坡挡土墙加固的控制效果进行分析,能够为类似工程实践提供参考数据。

It is necessary to select reasonable reinforcement scheme to extend the normal working condition of slope retaining wall due to the increase of service time, deterioration of its own material and the change of external load condition, local cracking or partial instability occur occasionally. Based on this consideration, based on the engineering examples, the causes of local cracking failure of a gravity retaining wall are analyzed by theoretical analysis, numerical simulation and field testing. The probabilistic probability of failure may be predicted, and then combined with field test data,the control effect of slope retaining wall reinforcement is analyzed,which can provide reference data for similar engineering practice.