岩溶地区桩基施工技术

Construction Technique for Pile Foundation in Karst Area

研究目的:探讨岩溶地区桩基工程特点,解决岩溶地区施工中遇到的问题,并进行技术归纳总结,为同类工程提供经验。研究结果:岩溶地区岩溶发育地段钻孔桩基础,采用回填片石、红粘土、钢护筒跟进等施工技术,配合冲击成孔工艺处理溶洞,取得了满意的技术和经济效果。

Research purposes:The discussion on the construction characteristics of the pile foundation in karst area and technical summary are made for the purposes of solving the construction problems in karst area to provide reference to the similar construction. Research results:To the foundation of bored pile in the development section of karst area,the construction techniques of filling chipped stones and red clay followed by steel protection cylinder are adopted along with impact pore-forming process to treat ka...