岩溶地区缺陷桩检测及处理措施  

Detection of Defective Piles in Karst Area and Treatment Measures

作　　者：黄柳云[1] 杜静[2] 王家全[1] 吴辉琴[1] 

机构地区：[1]广西工学院土木建筑工程系,广西柳州545006 [2]广西交通职业技术学院路桥工程系,广西南宁530023

出　　处：《施工技术》2013年第7期19-23,共5页Construction Technology

基　　金：国家自然科学基金项目(51009030);广西自然科学基金项目(2011GXNSFB018003);广西工学院科学基金(1166216)

摘　　要：结合多项工程缺陷桩实例,采用声波透射法和钻芯法系统地对桩底持力层承载力不足、沉渣过厚、桩身局部夹泥、桩身局部离析、桩头浮浆等缺陷的基桩进行对比分析并提出相应的补强处理方案。结果表明,采用声波透射法检测并辅以钻芯法进行验证,可以客观评价基桩的质量,为岩溶地区桩基施工提供经济有效的技术参考。Based on a number of projects, comparative analyses were performed to deflective piles with deficiencies such as insufficient bottom bearing capacity, excessive sediment, floating pulp, defect with mud and segregation using sound wave transmission and core drilling method, and the retrofitting treatments were proposed correspondingly. The results show that the quality of piles can be evaluated objectively, using the sound wave transmission method with the assistance of core drilling method. These provide economic and effective technical references to pile constructions in karst area.

关 键 词：地下工程 桩基础 缺陷桩 检测 

分 类 号：TU753.3[建筑科学—建筑技术科学]