锅锥成孔灌注桩施工技术

Construction technology of drilling hole for cast-in-place pile bored by kettle-cone

介绍了锅锥成孔灌注桩成孔的工作原理、适应范围及施工工艺 ,并对其成孔灌注桩成孔过程中易出现的桩位偏移 ,沉渣超标 ,坍孔、缩颈等工程施工质量问题作了分析 。

In this paper the working principle of kettle -c one in cast-in-place pile drilling, its application scope and construction tec hnology are introduced. According to the quality issues encountered in drilling process such as stake offset, hole collapsing, diameter reducing and other defec ts corresponding prevention measures are proposed.