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钻孔桩、挖孔桩施工技术在复杂岩溶地质条件下适应性较差,冲击钻孔技术对不均匀地层具有良好的适应性,实践证明冲击钻进是岩溶发育区较佳的嵌岩桩基础施工技术。本文重点论述岩溶区不同地质条件下相应的冲孔桩施工方法和钻进事故防治措施。
Bored pile, digging pile construction technology in complex karst geological conditions less adaptable, impact drilling technology for uneven formation has good adaptability, practice has proved that impact drilling karst development zone is better rock-socketed pile foundation Construction Technology. This article focuses on the corresponding karst area under different geological conditions punching piles construction methods and prevention measures for drilling accidents.