【摘要】 以广州地区地层情况为条件,研究盾构隧道在双向地震波激励作用下的横向地震响应特性,利用有限元软件ADINA的弹簧阻尼单元模拟粘弹性人工边界,有效地分析结构-地基的动力相互作用问题。对盾构隧道在地震作用下衬砌结构的应力场与位移场进行数值模拟计算,分析衬砌结构的稳定性和变形,并对计算结果进行了对比研究。更多还原

【Abstract】 Based on strata conditions of Guangzhou area,the transverse seismic response characteristics of the shield tunnel under the excitation action of two-way seismic wave were studied.The spring-damping unit of ADINA software was used to simulate the viscous and elastic artificial boundary and analyze the dynamic interaction of structure-foundation effectively.The stress field and displacement field of shield tunnel lining structure under seismic effect were simulated numerically and calculated,the stability and deformation of the lining structure were analyzed,and the calculation results were compared and studied.更多还原