求助几篇文章，望各位帮助！
1、Simplified procedure for evaluating soil liquefaction pot en t ia
2、A unified approach to densifcation and liquefaction of cohesionless sand in cyclic shearing
3、Ea r t hq ua k e i ndu c e d s e t t l e me n t s i n s a turated sands
4、S e t t l e me n t i n s a t ur a t e d s a nd i nd uc e d b y c yc l i c un dr ai ne d s i mpl e s h e ar
5、 Li qu e f a c t i on — i ndu c e d c om p a c t i o n a nd s e t t l e me n t of s a nd dur i ng e a r t hqu a ke
6、Ev a l u at i on o f s e t t l e me n t s i n s a nd de p os i t s f ol l o wi n g l i q ue f a c t i o n dur i ng e ar t hq ua ke
由于以上几篇文章出版较早，难得找到，望各位帮忙！谢谢！
