Soil arching in unsaturated soil with different water table

Soil arching above support structures with different water tables may be different. A series of trapdoor tests are carried out to research the effect of water table on soil arch. Displacement of sands and soil pressure on trap door is obtained from test results and the influence of grain size and trap door width have also been considered in the model test. It can be concluded that the limit influenced range of water table on soil arching is two...