溶洞地区冲孔灌注桩施工

Impact-cone concrete pile construction in the karst cave area

冲孔灌注桩是目前大型建、构筑物常用的基础形式之一,其在岩溶地质条件下施工具有一定的难度和危险性,常面临漏浆、塌孔的问题。本文通过结合某石灰窑冲孔桩基础施工工程实例,简要阐述了岩溶地区冲孔桩施工过程中应采取的技术措施和施工中应注意的事项,望能对同类的工程施工提供参考。

The impaet--cone is one of the commonly used basis form of large buildings/structures, the construction has a certain degree of difficulty and danger of it in the karst geological condition, often facing the problem of Mud leakage and collapsing hole. The paper is written based on a lime kiln punching pile foundation construction, gives a brief exposition of the technical measures taken during the impact--cone concrete pile construction in the karst cave area and the matters needing attention in the construc- tion, hope to provide a reference to the similar construction.