顶管下穿堤防抗滑桩清除补偿加固方案

通过对常用抗滑桩清除方法的优缺点分析，结合南京市某水环境整治工程污水干管下穿外秦淮河抗滑桩清除补偿的工程案例，详细介绍了断桩补偿设计原则、设计方案、施工方法。断桩法施工的优点比较明显，利用顶管机械直接断桩，简单、直接，无需其他辅助措施，对外界环境影响较小。可供今后城区范围内类似工程借鉴参考。

Removal Compensation and Reinforcement Scheme of Anti-slide Pile of Pipe Jacking under Embankment

Through the analysis on the advantages and disadvantages of the common anti-slide pile removal method, combined with an engineering case of the anti-slide pile removal compensation of trunk sewer under External Qinhuai River in the water environmental treatment project in Nanjing, the design principle, design scheme and construction method of pile breaking compensation are introduced in detail. The advantages of pile breaking construction method are more obvious. The pipe-jacking machine is used to directly break the piles, is simple and direct without the other auxiliary measures, and has little influence on the external environment, which can be referred for the similar projects in the urban areas in the future.