直流电测深法检测桩基埋深的理论方法与应用  

The Theory Method and Application of Direct Current Electrical Sounding in Detecting Pile Foundation Embedded Depth

作　　者：封绍武[1] 王营超[1] 刘文增[1] 

机构地区：[1]中国地质调查局水文地质环境地质调查中心,河北保定071051

出　　处：《工程质量》2009年第5期12-15,共4页Construction Quality

摘　　要：桩基埋深检测是工程建设中很重要的一个技术环节,桩基埋深是否符合设计要求是涉及到建筑物是否安全的重要标志。过去国内外多从弹性波理论方面进行研究与实际应用,用低应变检测,由于桩基接头及管桩的截面积较小,都未取得好的效果。为此,笔者试图从电场理论出发,研究直流电阻率测深法检测预应力管桩埋深的理论和技术方法,并通过实际应用,验证了直流电阻率法检测的准确性,从而为桩基埋深检测提供一种新的技术手段。Pile foundation embedded depth detection is a very important technical content in engineering construct. That pile foundation embedded depth meets design standards is a important marking relate to safety of building. At past, pile foundation embedded depth detection were researched with elastic wave theory and low strain home and abroad. But because of the smaller pile foundation joint and sectional area of pipe pile, good effect is not got. This paper tries to approach the direct current electrical sounding that most people know from the electric field. By application, the direct current electrical sounding is proved accuracy and it supplies a new technique means for pile foundation embedded depth detection.

关 键 词：直流电阻率法 预应力管桩 埋深 检测 

分 类 号：TU473.16[建筑科学—结构工程]