摘要
渠式切割装配式地下连续墙(TAD)是在渠式切割水泥土连续墙(TRD)内插入混凝土预制板材,且预制板材间可靠连接,形成集挡土与截水功能于一体的新型钢筋混凝土地下连续墙。在设计和施工要点依次说明后,现场试验被用于验证该墙的可行性和性能,且设计要点包括墙体、预制板材和连接及构造等三部分。垂直度控制和连接可靠性是施工关键,直接决定墙体受力性能和止水能力。现场试验表明该墙充分利用水泥土连续墙止水可靠和钢筋混凝土连续墙刚度大的优点,土体变形较小,可进一步应用。
Trench cutting Assembled Diaphragm wall(TAD)is a new type of reinforced-concrete diaphragm wall with the function of retaining soil and intercepting water.It is constructed by inserting pre-fabricated reinforced-concrete slabs into Trench cutting Re-mixing Deep wall(TRD)and the prefebricated slabs are reliably connected.After design and construction essentials are explained,a field test was introduced to verify the feasibility and performance of TAD wall.Therefore,verticality control and connectivity reliability are the key to construction technology and directly determine the mechanical performance and water stopping edacity of the wall.The field test results show that the TAD wall makes full use of the cement-soil diaphragm wall to ensure its water interception and the rigidity to the reinforced concrete.Hence the soil deformation is small and TAD wall can thus be applied.
作者
刘兴旺
潘黎芳
李瑛
龚晓南
江正兵
张金红
LIU Xing-wang;PAN Li-fang;LI Ying;GONG Xiao-nan;JIANG Zheng-bing;ZHANG Jin-hong(Zhejiang Institute of Architectural Design and Research,Hangzhou 310006,China;Zhejiang University of Technology and Science,Hangzhou 310018,China;Research Center of Coastal and Urban Geotechnical Engineering,Zhejiang University Hangzhou 310058,China;Zhejiang Jitong Underground Construction Technology Limited Company,Hangzhou 310015,China)
出处
《地基处理》
2019年第3期53-57,共5页
Journal of Ground Improvement
基金
浙江省科技计划项目重点研发计划(2017C03020)。
关键词
装配式地下连续墙
渠式切割
混凝土预制板材
水泥土连续墙
深基坑
assembled diaphragm wall
trench cutting
prefabricated reinforced-concrete slab
cement-soil diaphragm wall
deep excavation
