软土地区下穿营业线全护筒跟进钻孔桩施工技术研究

摘要

沪通铁路下穿京沪高铁、沪宁城际铁路桥下全护筒跟进钻孔桩施工，介绍下穿京沪高铁及沪宁城际铁路钻孔桩全护筒跟进的成功经验，解决了软土地区下穿营业线全护筒跟进钻孔桩施工时确保营业线安全运营的难题。%Shanghai-Nantong Railway down traversing Beijing-Shanghai high-speed railway, and Shanghai-Nanjing inter-city railway adopts whole pile casting follow-up bored pile construction under the bridge. This paper introduced the successful experience in the down traversing Beijing-Shanghai high-speed railway and Shanghai-Nanjing inter-city railway whole pile casting follow-up bored pile construction to guarantee safe operation of the operating line in soft soil area down traversing operating line whole pile casting follow-up bored pile construction.