Study On Liquefaction Characteristic Of Saturated Silty Soil By Shaking Table Test

To judge liquefaction potential in-situ test, the Standard Penetration Test is used. Based on developed laminar shear box of furthest eliminating boundary effect, the large-scale indoor emulational experiment named "Shaking stable test" is completed to simulate six-meter bankment and subgrade referring to 1:10 size scale. The test obtained developmental excess pore water pressure law of subgrade in different, depths and places, which contrast excess pore water pressure before liquefaction with that after liquefaction. And test analyzed liquefaction mechanism and characteristic of saturated silty soil, which compared varying excess pore water pressure rations and observed macroscopical phenomenons of subgrade and embankment such as emitting water and transmutation of subgrade, settlement of embankment and the like.1) the similar ratio of model should be maked sure,so that the geometrical size and simulative material of model should be maked certain.2) the acceleration is measured in the condition of liquefaction of saturated silty soil subgrade(the relation of acceleration of subgrade and aseismatic acceleration)3) how does excess pore water pressure distribute and transfer in saturated silty soil subgrade when shaking stable shakes4) Subgrade would lose stabilize and flow in lateral direction and process machanism between subgrade and embankment when shaking stable shakes5) How would embankment respond when shaking stable shakes (the relation of accelation of embankment, transmutation and aseismatic accelation)...