杭州湾跨海大桥海上深孔勘探新技术应用  

Application of new geotechnical technique in deep borehole exploration for cross-sea bridge in Hangzhou Bay

作　　者：孙德科 孟庆鹏 唐寿岭 Sun Deke;Meng Qingpeng;Tang Shouling(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]中交第三航务工程勘察设计院有限公司,上海200032

出　　处：《工程勘察》2022年第4期31-35,共5页Geotechnical Investigation & Surveying

摘　　要：杭州湾区域具有潮大、流急和浅层气较发育的特点,是世界上第三大强潮区,对在该区域进行工程勘察提出较高要求,现阶段的常规勘察手段无法满足。为满足勘探技术、质量和安全施工要求,通苏嘉甬铁路杭州湾跨海特大桥勘探中采用了本单位完全具有知识产权的单侧悬臂式勘探平台、深层承压水取水工艺、浅层气发育区域勘探施工技术及钻孔垂直度量测等关键技术,为中国海上高铁工程提供强力技术支持。同时,其应用技术成果可供类似重大勘察项目借鉴和参考。Hangzhou Bay area is the third largest strong tidal area in the world, which is characterized by high tide, rapid current and relatively developed shallow gas. Therefore, higher requirements are put forward for engineering investigation in this area, which could not be met by conventional investigation methods at present. To meet the requirements of the exploration technique, the quality and safety of construction, the key exploration techniques are used, which are developed by our company completely with intellectual property rights such as the unilateral exploration of cantilever platform, the water intaking technique for deep confined water, the exploration construction technique in shallow gas development area, and the measurement of borehole vertical degree. The techniques could provide the strong technical support for the sea high-speed rail engineering in China. At the same time, the application technique could be used as a reference for similar major reconnaissance projects.

关 键 词：勘探平台 承压水取水 浅层气 垂直度量测 

分 类 号：TU411[建筑科学—岩土工程]