孔内摄像技术在钻芯检测中的应用  

Application of Borehole Camera Technology in Drilling Core Detection

作　　者：王小威 WANG Xiaowei(Shenzhen Housing Safety and Engineering Quality Testing and Appraisal Center)

机构地区：[1]深圳市房屋安全和工程质量检测鉴定中心

出　　处：《广东建材》2024年第11期70-73,共4页Guangdong Building Materials

摘　　要：本文采用孔内摄像法技术对灌注桩普通钻芯和界面抽芯的检测结果进行辅助验证,从裂缝缺陷、桩底沉渣厚度、持力层缺陷以及界面抽芯的桩端部分的混凝土性状、桩底沉渣厚度等多角度进行验证和对比,结果表明孔内摄像技术能有效弥补钻芯法在机械破损、水平裂缝判别等方面的不足问题以及准确地识别桩身缺陷和桩底沉渣厚度。孔内摄像技术与钻芯法的综合应用,可增强钻芯检测结果的科学性和准确性。This article uses borehole camera technology to assist in the verification of the detection results of ordinary core drilling and interface core pulling for cast-in-place piles.The verification and comparison were carried out from multiple perspectives,including crack defects,pile bottom sediment thickness,bearing layer defects,concrete properties of the pile end part with interface core pulling,and pile bottom sediment thickness.The results show that borehole camera technology can effectively compensate for the shortcomings of core drilling method in mechanical damage,horizontal crack discrimination,and accurately identify pile body defects and pile bottom sediment thickness.The comprehensive application of borehole camera technology and core drilling method can enhance the scientificity and accuracy of core drilling detection results.

关 键 词：孔内摄像技术 普通抽芯 桩底沉渣 裂缝缺陷 持力层缺陷 

分 类 号：TU473.1[建筑科学—结构工程]