EARTH PRESSURES WITH SLOPING BACKFILL
EARTH PRESSURES WITH SLOPING BACKFILL
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DOI：
10.1061/(asce)1090-0241(1997)123:3(250
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发表时间：
1997-03
影响因子：
3.9
通讯作者：
Yu Fang;Jiung-Ming Chen;Cheng-Yu Chen
中科院分区：
文献类型：
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作者：
Yu Fang;Jiung-Ming Chen;Cheng-Yu Chen
本文提供了作用于垂直刚性墙的土压力的实验数据，该墙远离或靠近具有倾斜表面的干沙块。台湾国立交通大学 (NCTU) 的仪表化挡土墙设施用于研究墙体平移运动引起的土压力变化。根据实验数据发现，墙体运动各阶段的土压力分布基本呈线性。回填土达到主动状态所需的壁面运动和回填土达到被动状态所需的壁面运动均随着回填土倾斜度的增加而增加。不同回填土坡度下的主动、被动土压力系数试验结果与库仑理论计算值吻合较好。采用朗肯理论来确定倾斜回填的刚性墙的主动或被动土压力可能不合适。
This paper presents experimental data of earth pressure acting against a vertical rigid wall, which moved away from or toward a mass of dry sand with an inclined surface. The instrumented retaining-wall facility at National Chiao Tung University (NCTU) Taiwan, was used to investigate the variation of earth pressure induced by the translational wall movement. Based on experimental data, it has been found that the earth-pressure distributions are essentially linear at each stage of wall movement. Both the wall movement required for the backfill to reach an active state and the wall movement needed for the backfill to reach a passive state increase with an increasing backfill inclination. The experimental active and passive earth-pressure coefficients for various backfill sloping angles are in good agreement with the values calculated by Coulomb's theory. It may not be appropriate to adopt the Rankine theory to determine either active or passive earth pressure against a rigid wall with sloping backfill.