基坑围护结构渗漏隐患检测技术及应用  

Detection Technology and Application of Leakage Hazards in Foundation Excavation Enclosure Structure

作　　者：朱黎明 唐睿 胡绕 ZHU Liming;TANG Rui;HU Rao(SGIDI Engineering Consulting(Group)Co.,Ltd.,Shanghai200093,China)

机构地区：[1]上海勘察设计研究院(集团)股份有限公司,上海200093

出　　处：《施工技术（中英文）》2024年第22期76-80,共5页Construction Technology

基　　金：中国博士后科学基金面上资助项目(2020M671165);上海市优秀技术带头人基金资助(21XD1433100)。

摘　　要：围护结构渗漏隐患所导致的次生风险已成为基坑工程建设中的常见风险源。引入微电流场法的围护结构渗漏隐患无损检测成套技术,介绍该技术的基本原理、实施流程及数据处理与渗漏隐患分类依据。以上海某基坑的围护结构为检测对象,在基坑开挖前进行提前检测,预报了3处渗漏隐患,并针对性地提供了相应的加固处置建议。在基坑开挖后,围护结构出现了预报所提及的渗漏情况。表明该技术具有较好的检测效果,有效降低了基坑施工风险,保障了施工安全。The secondary risk caused by the leakage of the enclosure structure has become a common risk source in the construction of foundation excavation engineering.A complete set of non-destructive testing technology for leakage hidden danger of enclosure structure based on micro-current field method is introduced.The basic principle,implementation process,data processing and classification basis of leakage hidden danger of this technology are introduced.Taking the enclosure structure of a foundation excavation in Shanghai as the detection object,the early detection was carried out before the excavation of the foundation excavation,three hidden dangers of leakage were predicted,and corresponding reinforcement suggestions were provided.After the excavation of the foundation excavation,the enclosure structure appeared to predict the leakage mentioned.It shows that the technology has a good detection effect,and effectively reduces the risk of foundation excavation construction and ensures the construction safety.

关 键 词：基坑 围护结构 渗漏 无损检测 

分 类 号：U456[建筑科学—桥梁与隧道工程]