钻孔咬合桩施工质量控制

Quality control for construction of drilling occlusive piles

钻孔咬合桩既具挡土又具止水的双重作用,施工快捷,工艺简单,对环境干扰少,比较适合于城市地铁、隧道和大、中型基坑支护工程。结合南京火车站站前广场龙蟠路新建隧道工程,介绍了钻孔咬合桩的一般施工技术要求和主要控制措施。

Drilling occlusive piles are of dual function of soil block and waterproof. With little disturbance to the environment, the construction of drilling occlusive piles are shortcut and easy in flow sheet, and adapt to be used in urban subway, tunnel and foundation pit constructions. In combination with the recently built tunnel engineering near the train station of Nanjing, some general technical requirements and major controlling measures were presented in the text.