岩溶强发育地区钻(冲)孔桩设计与处理  

Design and treatment of bored (punched) pile in Karst Area

作　　者：佟旋 黄洲 张兴富 蔡惠娇 苏健峰 向伟明 Tong Xuan;Huang Zhou;Zhang Xingfu;Cai Huijiao;Su Jianfeng;Xiang Weiming(Guangzhou Urban Renewal Planning Institute,Guangzhou 510055,China;Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州市城市更新规划研究院,广东广州510055 [2]广州大学,广东广州510006

出　　处：《建筑科学》2021年第5期150-155,共6页Building Science

摘　　要：岩溶地区地质条件复杂多变,在勘察设计过程中经常会遇到溶(土)洞、破碎带、裂隙等岩溶发育强烈的地质条件,高层建筑地基基础设计遇到这种不利情况时,如果处理方式不当,会造成严重的安全隐患和经济损失,如何保障桩基础安全显得尤为重要。本文结合广州市北部地区某实际工程,探讨处于断裂带附近岩溶破碎地质条件下钻(冲)孔桩的设计与处理。The geological conditions in karst areas are complex and changeable. In the process of survey and design,karst( soil) caves,fracture zones,fissures and other geological conditions with strong karst development are often encountered. When the foundation design of high-rise buildings encounters this unfavorable situation,if the treatment method is improper,it will cause serious security risks and economic losses. How to ensure the safety of pile foundation is particularly important. Taking a practical project in the north of Guangzhou as an example,the design and treatment of drilling( punching) pile under the condition of karst broken geology near the fault zone are discussed.

关 键 词：钻(冲)孔灌注桩 岩溶 破碎带 设计与处理 

分 类 号：TU973[建筑科学—结构工程]