【摘要】 为了了解软夹层对基岩上覆土层破裂的影响,确定土层的破裂范围,采用平面应变有限元法,模拟了有软夹层的上覆土层在断层错动时的破裂过程．从模拟的结果看出,软夹层对上覆土层破裂有一定的阻碍作用;当软弱层埋置较深时,一旦上覆土层破裂,失效土体的范围较大;软弱夹层的厚薄对上覆土层的破裂进程和破裂范围也有影响．更多还原

【Abstract】 To know the rupture course and rupture range,we simulated the process of rupture on the overlay- ing soil with soft interlayer by plane strain finite element method in this paper.Results show that the overly- ing soil with a soft interlayer can obstruct the rupture failure from bedrock up to the earth’s surface,howev- er,a soft interlayer which is deeply buried,will bring about a wider range of the earth’s surface rupture fail- ure;In addition,the thickness of the soft interlayer may have effects on the rupture course of the overlying soil.更多还原