基于CPTU的承压水位勘察测试方法  

Measuring method for confined water level using piezocone penetration tests

作　　者：孙彦晓 刘松玉[1] 张国超 王勇[3] 何欢 童立元[1] 陈稳 吴烁 SUN Yanxiao;LIU Songyu;ZHANG Guochao;WANG Yong;HE Huan;TONG Liyuan;CHEN Wen;WU Shuo(Institute of Geotechnical Engineering,Southeast University,Nanjing 211189,China;China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan 430056,China;Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China;Jiangsu Provincial Transportation Construction Bureau,Nanjing 210004,China;China Railway 14th Bureau Group Co.,Ltd.,Jinan 250101,China;China Railway 14th Bureau Group Mega Shield Construction Engineering Co.,Ltd.,Nanjing 211800,China)

机构地区：[1]东南大学岩土工程研究所,江苏南京211189 [2]中铁大桥勘测设计集团有限公司,湖北武汉430056 [3]中国科学院武汉岩土力学研究所,湖北武汉430071 [4]江苏省交通工程建设局,江苏南京210004 [5]中铁十四局集团有限公司,山东济南250101 [6]中铁十四局集团大盾构工程有限公司,江苏南京211800

出　　处：《岩土工程学报》2024年第S02期38-42,共5页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金项目(41972269,52178384,52008098);江苏省自然科学基金项目(BK20200405);江苏省交建局项目(2021QD05)。

摘　　要：基坑隧道等工程中承压水突涌、渗漏等问题时有发生,如何经济、便捷、准确地获取承压水位对工程设计及施工具有重要指导意义。通过分析江阴靖江过江隧道和海太过江通道工程中的孔压静力触探(CPTU)测试及地勘资料,提出了一种基于CPTU的承压水位测试方法,可在获取CPTU原位测试参数的同时,通过测量的孔隙水压力计算承压水位。将CPTU测试获取的承压水位与观测井水位进行对比,结果表明,测试值与观测值较为一致;CPTU方法具有操作便捷、快速、施工成本低的优点,值得在基坑隧道工程中推广使用。The occurrence of confined water inrush and leakage is common in engineering projects such as foundation pits and tunnels.To economically,conveniently and accurately obtain the confined water level is of great significance for the guiding of engineering design and construction.By analyzing the piezocone penetration tests(CPTU)and geotechnical data from the projects of Jiangyin-Jingjiang Yangtze River Tunnel and Haitai Yangtze River Tunnel,a CPTU-based method for measuring the confined water level is proposed.This method allows for the calculation of the confined water level through measurement of pore pressure while obtaining the CPTU in-situ test parameters.The comparisons between the calculated and observed confined water levels show high consistency.The CPTU method offers advantages of convenience,speed and low construction cost,making it worth promoting and implementing in foundation pit and tunnel engineering.

关 键 词：承压水 孔压静力触探 原位测试 孔隙水压力 承压水位 

分 类 号：TU413[建筑科学—岩土工程]