MODEL TEST OF SANDY SOIL SLOPE REINFORCED BY SOILBAGS AND UPPER-BOUND SOLUTION
WANG Yanqiao1，LIU Sihong1，YANG Junjie2，LIU Qiang2
(1. College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing，Jiangsu 210098，China；2. College of Environmental Science and Engineering，Ocean University of China，Qingdao，Shandong 266100，China)
Abstract：A series of model tests are carried out on sandy soil slopes with and without reinforcement by soilbags. The reinforcement effect of soilbag is validated by comparing the slope failure modes and ultimate bearing capacities. Based on the test results，an allowable slope failure mode and the velocity field are established. Meanwhile，the ultimate failure heights of the reinforced slopes are obtained by using the upper-bound solution theory，which agrees well with those from the model tests. Both the model tests and the upper-bound calculations show that，after reinforcement with soilbags，the steeper the soil slope is，the more the increases of the ultimate failure height and the bearing capacity of the soil slope are，indicating a better reinforcement effect of soilbags.
王艳巧，刘斯宏，杨俊杰，刘强. 土工袋加固砂性土质边坡模型试验与上限解[J]. 岩石力学与工程学报, 2009, 28(S2): 4006-4013.
WANG Yanqiao1，LIU Sihong1，YANG Junjie2，LIU Qiang2. MODEL TEST OF SANDY SOIL SLOPE REINFORCED BY SOILBAGS AND UPPER-BOUND SOLUTION. , 2009, 28(S2): 4006-4013.
