莆田市涵江区群英河边坡治理方案比选

Comparison and selection of Qunying River slope treatment scheme in Hanjiang District of Putian city

莆田市涵江区的群英河在清淤过程中,边坡存在失稳隐患需要治理。设计了挡土墙加松木桩和挡土墙加塑钢板桩两种支护方案。经过采用MIDAS安全稳定性分析结果显示两个方案的竖向位移都比较小,达到规范要求。使用刚体极限平衡法分析计算安全系数,两个方案都满足要求。从经济投入上比较,松木桩支护小于塑钢板桩支护。

During the desilting process of Qunying River in Hanjiang District of Putian City,there are hidden dangers of slope instability which need to be treated.The retaining wall with pine wood pile and retaining wall with plastic steel sheet pile are designed.By using MIDAS safety and stability analysis,the results show that the vertical displacement of the two schemes are relatively small,meeting the requirements of the code.Using the rigid body limit equilibrium method to analyze and calculate the safety factor,both schemes meet the requirements.In terms of economic input,pine pile support is less than plastic steel sheet pile support.