价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
24期
103-106
,共4页
软弱地层%超大异形深基坑群%施工技术
軟弱地層%超大異形深基坑群%施工技術
연약지층%초대이형심기갱군%시공기술
soft ground%super large profiled deep excavation group%construction technology
宁波轨道交通2号线TJ2105-1标为地铁2、4号线换乘车站及宁波火车站北广场地下配套工程，共分10个基坑，总面积约为35000平米。其中II-6（a）基坑面积为26971平米，为超大异形深基坑；II-5基坑属4号线西段部分，该基坑为北广场坑中坑；地铁2号线、4号线均下穿北广场；该工程围护、加固、支撑、开挖、防水及结构等设计形式多样，工序安排要求高，施工组织难度大，技术要求程度高，是同类工程中较为典型，施工方案及相关技术总结对类似基坑施工具有借鉴意义。
寧波軌道交通2號線TJ2105-1標為地鐵2、4號線換乘車站及寧波火車站北廣場地下配套工程，共分10箇基坑，總麵積約為35000平米。其中II-6（a）基坑麵積為26971平米，為超大異形深基坑；II-5基坑屬4號線西段部分，該基坑為北廣場坑中坑；地鐵2號線、4號線均下穿北廣場；該工程圍護、加固、支撐、開挖、防水及結構等設計形式多樣，工序安排要求高，施工組織難度大，技術要求程度高，是同類工程中較為典型，施工方案及相關技術總結對類似基坑施工具有藉鑒意義。
저파궤도교통2호선TJ2105-1표위지철2、4호선환승차참급저파화차참북엄장지하배투공정，공분10개기갱，총면적약위35000평미。기중II-6（a）기갱면적위26971평미，위초대이형심기갱；II-5기갱속4호선서단부분，해기갱위북엄장갱중갱；지철2호선、4호선균하천북엄장；해공정위호、가고、지탱、개알、방수급결구등설계형식다양，공서안배요구고，시공조직난도대，기술요구정도고，시동류공정중교위전형，시공방안급상관기술총결대유사기갱시공구유차감의의。
Ningbo Rail Transit No.2 Line TJ2105-1 is the auxiliary project of subway No.2,4 Lines transfer station and Ningbo Railway Station North Plaza, and it is divided into 10 pit, with a total area of approximately 35,000 square meters. In which, the area of II-6 (a) pit is 26971 square meters, belonging to the super large shaped deep excavation;II-5 pit belongs to the No.4 line western section, belonging to the middle shaped deep excavation of North Plaza; Metro No.2,4 Lines are beneath the North Plaza. The design form of the envelope, reinforcement, support, excavation, waterproofing and structure of this project is diverse, which has a higher demand for work arrangements, and the construction difficulty is large, technical requirements are high, so it is more typical in similar projects, and its construction program and related technical summary draw on the experience on similar pit construction.
