中文摘要：

机械冲孔桩是岩溶地区桩基施工常用的施工方法。面对复杂的地质条件，机械冲孔桩在成桩过程中卡钻现象时有发生，如何分析卡钻成因、预防卡钻现象发生及卡钻发生后及时处理卡钻事故，成为控制施工进度和质量的关键。文章结合工程案例，从分析冲孔桩卡钻成因入手，针对具体地质情况，提出预防卡钻的具体措施和卡钻的处理方法，为现场机械冲孔桩施工顺利开展提供参考和借鉴。

英文摘要：

Mechanical punching Pile Foundation Construction in Karst Region is commonly used construction method. Faced with the complex geological conditions, Mechanical punching pile in the process of pile stuck drill frequendy occurred, How to analyze the cause, prevention stuck drill stuck drill phe- nomenon and timely processing stuck drill occurred after stuck drill accident, Become the construction progress and quality control of＂ the key. Combining with a project example, From analyzing the punching pile stuck driU cause of geological conditions, according to specific stuck drill, puts forward the prevention measures and stuck drill, the processing method of mechanieal punching pile construction for the site to offer reference and smoothly.