AM桩基在盖挖逆作地铁车站中的应用

Application of AM Pile into the Subway Station with Cover-and-cut Reverse Method

桩基是盖挖逆做车站中最主要的竖向支撑构件,差异沉降控制严格,质量要求高.武汉地铁二号线中南路站根据现场实际施工情况,将原长直桩方案优化为AM桩.结果表明,在满足桩基设计要求同时,缩短桩长、减少造价、简便施工,为类似工程的实施提供了可行的设计思路及施工经验.

The pile foundation is a leading vertical support component for subway station with Cover-and-cut reverse method, Which the differential settlement is controlled strictly and the high quality is required. According to the actual construction situation of Wuhan metro 2 zhongnan Road Station, the original long straight pile scheme has been optimized for AM piles. The results show that under meet of the requirements of pile foundation design, shorten pile length, reducing cost, simple construction. It provides a feasible design and construction experience for similar projects.