紧临既有建筑物多层地下结构自支护施工技术

Self-supporting Technique for the Muilti-storey Underground Structure Adjacent to Existing Buildings

针对紧临既有建筑物多层地下结构施工,利用地下结构本体为支护桩提供支点,通过有限元模拟分析与实测数据相互验证,证明该技术能在确保既有建筑结构安全的前提下,大大缩小支护桩桩径和桩长,节约成本、缩短工期。

During the construction of the multi-storey underground structure adjacent to existing buildings, it uses the structure proper to provide supporting point for the support piles. The verification of finite element modelling with tested data demostrates that the self-supporting technique can greatly reduce the support piles in diameter and length, save cost and shorten the construction period when the the safety of the adjacent existing buildings is ensured.