岩溶地区桩基检测方法对比分析和综合应用  

Comparative Analysis and Comprehensive Application of Detection Method of Pile Foundation in Karst Area

作　　者：吴辉琴[1] 王鹏[1] 王家全[1] 

机构地区：[1]广西工学院土木建筑工程系,广西柳州545006

出　　处：《建筑科学》2012年第3期79-82,共4页Building Science

基　　金：国家自然科学基金资助项目(51009030);广西自然科学基金项目(编号2011GXNSFB018003);广西教育厅科技项目(200911LX187);广西工学院博士基金项目(项目编号:院科博1011)

摘　　要：岩溶地区冲孔灌注桩设计,由于地质条件复杂,增加了对桩身完整性检测的难度。通过实际工程,分析探讨各种检测方法的特点、适用范围和局限性,提出低应变法、超声波投射法和钻芯法综合运用模式,针对不同工况灵活采用不同检测方法组合的模式,提高了检测精度,加快检测进度,降低检测费用,可为类似工程提供参考依据。Owing to the complex geologic conditions,it is difficult to detect the integrality of the punching grout piles in the karst region.Based on the actual projects,the characteristics,applicable scope and limitations of various detection methods are analyzed and explored,and the comprehensive application mode of low-strain method,ultrasonic projection method and drilling core method is proposed.The flexible application of the combination of different detection methods in different operating conditions can improve the detection accuracy,speed up the detection progress,and reduce the detection costs.The paper can provide a reference for similar projects.

关 键 词：岩溶地区 冲孔灌注桩 桩基检测 

分 类 号：TU473.14[建筑科学—结构工程] TU473.16[建筑科学—土工工程]