LABORATORY MODELLING TEST ON BEARING CAPACITY OF REINFORCED SAND SLOPES
MA Qinghong1，2，3，ZHU Dayong1，2，LEI Xianshun1，WU Yinglei1，WANG Baocun1
(1. School of Civil Engineering，Hefei University of Technology，Hefei，Anhui 230009，China；2. Anhui Laboratory of Civil Engineering and Materials，Hefei University of Technology，Hefei，Anhui 230009，China；3. Zhejiang Institute of Hydraulics and Estuary，Hangzhou，Zhejiang 310020，China)
Abstract：The bearing capacity of the square footings on the reinforced sand slope was studied with the laboratory modelling tests. The effects of the location and the number of the reinforcement layers in the slope on the bearing capacity and the failure mechanism were investigated. The experimental results indicated that there was an optimum location of reinforcement with the highest bearing capacity under the different numbers of reinforcement layers. The optimum depth of the first reinforcement layer decreased，whereas the efficiency of the sand- reinforcement system increased with the increasing of the number of reinforcement layers. According to the characteristics of the load-settlement curves，the deformation and the reinforcement rupture，the failure mechanisms of the reinforced sand slope were classified into three types，the failure above the top layer of reinforcement，the failure between the reinforced layers and the failure below the reinforced zone. Meanwhile，the failure patterns were inferred.
2015, Vol. 34 
