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
Key words
foundation excavation/enclosure structure/leakage/non-destructive inspection
维普
万方数据