(1. Geotechnical and Structural Engineering Research Center,Shandong University,Jinan,Shandong 250061,China;2. School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China)
Abstract:Recently,underwater tunnels have progressed vigorously in China. Therefore it is necessary to research this type of tunnel using the analogous material test. The test bench composed of high-strength PVC board and structural steel was manufactured. Optical fiber monitoring system and collection device of water seepage were exploited. The new type of solid-fluid coupling analogous material was improved. Then the fluid-solid coupling model test was performed for the Kiaochow Bay Subsea Tunnel. Water inflow and multiple information like the displacement,stress and seepage pressure of key points were recorded in the test process. In order to verify each other,numerical simulation which was similar to the physical test was made using fast Lagrangian analysis of continua in 3 dimensions(FLAC3D). The test results are credible because that the spatial distributions of multiple information got from the representative working condition accord with the general rule. Compared with the numerical simulation,physical test can take influence factors such as the excavation disturbances,water level fluctuations and wall-rock weakness due to seawater immersion into account;so that the results obtained from physical test approach the actual engineering conditions more.
蔚立元1,2,李术才1,徐帮树1,王育奎1,刘日成1. 水下隧道流固耦合模型试验与数值分析[J]. 岩石力学与工程学报, 2011, 30(7): 1467-1474.
YU Liyuan1,2,LI Shucai1,XU Bangshu1,WANG Yukui1,LIU Richeng1. STUDY OF SOLID-FLUID COUPLING MODEL TEST AND NUMERICAL ANALYSIS OF UNDERWATER TUNNELS. , 2011, 30(7): 1467-1474.
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