敏感环境下地下水池基坑围护施工技术

On the application of hard bite pile supporting foundation pit construction in sensitive environment

杨树浦水厂深度处理改造工程具有地质条件复杂、场地工况敏感、施工组织及环境保护要求高等特点。结合周边建筑物密集,且离运营中的文保工业建筑最近距离仅为15 m的特点,从支撑选型、回填及降水、土方开挖等方面介绍了敏感环境下地下水池处理改造基坑围护施工技术,有效地保障了重大工程的高效、安全实施,为今后类似环境下地下结构建造涉及到的基坑施工提供了借鉴和参考。

The advanced treatment and reconstruction project of Yangshupu Water Plant has the characteristics of complex geological conditions,sensitive site conditions,high requirements for construction organization and environmental protection.The surrounding buildings are dense,and the nearest distance from the cultural protection industrial buildings in operation is only 15 m.Combining the above characteristics of surrounding buildings,introduced the construction technology of foundation pit enclosure for treatment and renovation of underground pool under sensitive environment from aspects of the perspective of support selection,backfilling and precipitation,earth excavation,etc..Effectively ensure the efficient and safe implementation of major projects,and provide reference for the construction of underground structure in similar environments involving foundation pit construction in the future.