The flow behavior of liquefied sand is reported using a self-developed testing system that enables the flow processes of liquefied sand to be studied at different slopes of the soil layers.The test device is mainly co...The flow behavior of liquefied sand is reported using a self-developed testing system that enables the flow processes of liquefied sand to be studied at different slopes of the soil layers.The test device is mainly composed of a vibrating table,a transparent model box and a high-speed video monitoring camera.The tests replicated the horizontal and sloping flows of saturated sand in the model box,which can be tilted to various angles to study the flow characteristics of liquefied sand.The high-speed video monitoring camera captured and recorded the processes within the flowing sand.With increasing downslope,the strain,strain rate,duration time,and sand flow distance increased.The results of our experiment indicate that when selecting sites for engineering structures,the surface downslopes should be taken into account if liquefiable soils are present.Finally,some suggestions regarding site assessment and structural design for sites prone to liquefaction were presented.展开更多
基金supported by the National Natural Science Foundation of China(No.41831291)。
文摘The flow behavior of liquefied sand is reported using a self-developed testing system that enables the flow processes of liquefied sand to be studied at different slopes of the soil layers.The test device is mainly composed of a vibrating table,a transparent model box and a high-speed video monitoring camera.The tests replicated the horizontal and sloping flows of saturated sand in the model box,which can be tilted to various angles to study the flow characteristics of liquefied sand.The high-speed video monitoring camera captured and recorded the processes within the flowing sand.With increasing downslope,the strain,strain rate,duration time,and sand flow distance increased.The results of our experiment indicate that when selecting sites for engineering structures,the surface downslopes should be taken into account if liquefiable soils are present.Finally,some suggestions regarding site assessment and structural design for sites prone to liquefaction were presented.
