土层隧道动力分析  

Seismic analysis of tunnels in soil

作　　者：谷拴成[1] 高宗祺[2] 

机构地区：[1]西安科技学院建筑与土木工程学院,陕西西安710054 [2]陕西省建筑科学研究设计院,陕西西安710082

出　　处：《西安科技学院学报》2002年第4期404-406,410,共4页

摘　　要：考虑土与隧道体的相互作用,忽略结构惯性力,根据反应位移法,将隧道设计过程中各种动荷载(包括地震和爆破荷载)形成的地震波引起的隧道周围的土体位移作为荷载,通过弹簧作用于支护结构体上,推导出较为简单实用的公式来计算隧道在地震中的纵向和弯曲荷载,并讨论了其设计中的塑性问题。This paper takes account into soilstructure interaction, ignoring intertia force of structure, adopting action displacement method, then soil displacement surrounding tunnel caused by earthquake wave, which was producted by the dynamic loads(including earthquake or blast load) applying as earthquake load in tunnel design, is imposed on the supporting tunnel by spring as imposed loads. According to this, the author gets the simplified and useful formula to determine longitudinal and curing loads, and discuss plastic problem in design at the same time.

关 键 词：动力分析 土层隧道 反应位移法 纵向荷载 弯曲荷载 地震波 支护构体 

分 类 号：U452.28[建筑科学—桥梁与隧道工程]