复杂地质条件下钻孔灌注桩桩底沉渣分析处理  

Analysis and Treatment of Sediment at the Bottom of Drilled Cast-in-place Piles under Complex Geological Conditions

作　　者：张聪 周政 霍玉龙 Zhang Cong;Zhou Zheng;Huo Yulong(Institute of Seismology,CEA,Wuhan,China;Key Laboratory of Earthquake Geodesy,CEA,Wuhan,China;Hubei Earthquake Agency,Wuhan,China)

机构地区：[1]中国地震局地震研究所,湖北武汉 [2]中国地震局地震大地测量重点实验室,湖北武汉 [3]湖北省地震局,湖北武汉

出　　处：《科学技术创新》2024年第24期164-167,共4页Scientific and Technological Innovation

基　　金：中国地震局地震研究所和应急管理部国家自然灾害防治研究院基本科研业务费(2022HBJJ007,2022HBJJ017)。

摘　　要：湖北省武汉市某实验室项目地处岩溶强发育地区,存在红黏土和高岭土区域,地质条件复杂。对项目地质条件和桩基础情况进行了详细描述,分析了旋挖钻孔灌注桩桩底沉渣产生的原因,并提出解决桩底沉渣过厚的方法,为其他类似工程问题提供参考。A laboratory project in Wuhan,Hubei Province is located in an area with strong karst development,where there are red clay and kaolin areas,and the geological conditions are complex.A detailed description of the geological conditions and pile foundation of the project was provided,and the reasons for the formation of sediment at the bottom of the rotary drilling and grouting pile were analyzed.A method to solve the problem of excessive sediment at the bottom of the pile was proposed,providing reference for other similar engineering problems.

关 键 词：岩溶 钻孔灌注桩 沉渣 处理 

分 类 号：TU19[建筑科学—建筑理论]