软地基中基桩的完整性测定  

Integrity Detection of Foundation Piles Driven into Oozy Ground Base

作　　者：徐白山[1] 金成洙[1] 田钢[2] 黄航[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]吉林大学地球探测科学与技术学院,吉林长春130026

出　　处：《东北大学学报（自然科学版）》2004年第7期699-702,共4页Journal of Northeastern University(Natural Science)

基　　金：教育部博士点基金资助项目(1999014513).

摘　　要：利用地质雷达技术具有快捷、准确和实时处理及显示的优点,采集高分辨率的连续剖面·研究了地质雷达信息与碎石桩、粉喷桩、扩底桩的桩体形态和桩长度等完整性的定性、定量关系问题,在桩基检测的工程实践中,找出了一套有效的地质雷达探测技术和工作方法·它是常规检测方法的有力补充·并对各种条件下的检测技术的特点和探测技术进行了分析和评价,用具体的实例验证了本文提出的方法的可行性和有效性·结果表明该技术可为今后复合地基的桩基工程质量检测提供相关地下精细要素的大量信息·GPR(ground penetrating radar)technique has the advantages of quick,accurateness and real-time processing/display especially available to collect continuously high-resolution sections of underground pile. Investigating quantitatively and qualitatively the relationship of GPR information to the pile integrity including shape and length of macadam, powder spray pile and bottom expansion pile, an effective complete set of applications of GPR detection technique and relevant operation procedures was found out and proposed as supplement highly beneficial to the conventional detection procedure. Moreover, the characteristics of testing and detection technique were discussed and evaluated under different conditions, with proposed method exemplified to verify its feasibility and usefulness. The results showed that GPR technology will provide a big amount of detailed reliable information to the engineering quality inspection of underground piles of composite foundation structures.

关 键 词：地质雷达 复合地基 检测 桩基础 软地基 

分 类 号：P319.32[天文地球—固体地球物理学]