饱和南京细砂永久应变势模型的试验研究-世界地震工程-地震工程与.pdfVIP

27 , 2 V o l. 27, N o. 2 20 11 6 W OR LD EA RTHQUAKE ENG INEER ING Jun. 20 11 : 1007 - 6069 ( 20 11) 02 - 0001- 08 1 1 2 1 王炳辉, 陈国兴, 刘汉龙, 胡庆兴 ( 1. , 2 10009 2. , 2 10098 ) : , , , , , : , : : TU 435 U 4421 5+ 5 P3 151 98 : A Experim en tal study on a m od el of the perm an en t strain potential for saturated N anjing fine sand 1 1 2 1 WANG B inghu i , CHEN Guox ing , L IU H anlong , HU Q ingx ing ( 1. Inst itu te of G eotechn ical Engin eering, N an jing U n ivers ity of T echnology, N an jing 2 10009, Ch in a 2. G eotechn ical R esearch In stitu te, H ohai U n iv ersity, N an jing 2 10098, Ch ina) Abs tract: The research on the m odel of the perm anent strain po tentia l o f so il e lem ent is an mi portant task of so il dynam ics. T he previou s m odels on th is issue h ave not con sidered the in flu ence of the pore w ater pressure grow th in sand so ils on the perm anen t strain potential of so il elem ent, wh ich are difficult to explain the m echan ism of the earthqu ake- indu ced settlem ent of foundation m ain ly caused by soften or re-conso lida tion deform ation o f saturated sand so il foundation reasonably. Based on the effective stress state analysis o f the resu lts of dynam ic triax ial tests on saturated N anjing fine sand, the relat ion ship betw een the pore w ater p