NUMERICAL ANALYSIS OF DEEP FOUNDATION PIT DISPLACEMENT WITH DOUBLE-ROW END-SUSPENDED PILES IN STRATA OF SOIL-ROCK DUALISTIC STRUCTURE
LIU Hongjun1，2，WANG Yajun2，JIANG Dehong3，ZHENG Jianguo1，2
(1. Key laboratory of Marine Environmental Science and Ecology，Ministry of Education，Ocean University of China，Qingdao，Shandong 266100，China；2. College of Environmental Science and Engineering，Ocean University of China，Qingdao，Shandong 266100，China；3. Qingdao Geotechnical Investigation and Surveying Research Institute，Qingdao，Shandong 266032，China)
Abstract：Many special supporting structures have arisen in deep foundation pits corresponding to different excavation methods，depths and geological conditions. In strata of soil-rock dualistic structure，design and construction experiences are far from adequate in double-row end-suspended piles. The supporting system of Kaiyue deep foundation pit in Qingdao is taken as an engineering case to simulate the excavation process with the finite element software Plaxis. And then，comparative analyses are carried out between analytical results and in-situ monitoring data. The results show that such double-row end-suspended piles has more stiffness and can effectively control the deformation of foundation pit and the displacement of the pile，which mainly concentrates in the depth range of soil strata. The conclusions can serve as a theoretical reference for the optimal design of similar support structures.
刘红军1，2，王亚军2，姜德鸿3，郑建国1，2. 土岩组合双排吊脚桩桩锚支护基坑变形数值分析[J]. 岩石力学与工程学报, 2011, 30(S2): 4099-4103.
LIU Hongjun1，2，WANG Yajun2，JIANG Dehong3，ZHENG Jianguo1，2. NUMERICAL ANALYSIS OF DEEP FOUNDATION PIT DISPLACEMENT WITH DOUBLE-ROW END-SUSPENDED PILES IN STRATA OF SOIL-ROCK DUALISTIC STRUCTURE. , 2011, 30(S2): 4099-4103.
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2011, Vol. 30 
