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基坑支护体系的拆、改扩建已经成为目前岩土工程面临的一个重要课题。以沈阳市某深基坑支护改扩建工程为例,分析了如何拆除旧桩锚支护体系,研究和解决了在设计和施工上建立新支护体系所面临的问题,制定了兼顾可行性与经济性的最优施工方案,可供相似工程参考。同时发现,设计与施工的信息化起到了十分重要的作用。
Foundation pit support system demolition, renovation and expansion has become the geotechnical engineering is now facing an important issue. Taking the reconstruction and expansion project of a deep foundation pit in Shenyang as an example, this paper analyzes how to dismantle old pile and anchor support system, studies and solves the problems in establishing new support system in design and construction, And the optimal economic construction program, for similar projects for reference. Also found that the design and construction of information has played a very important role.