考虑隧道间相互作用的黄浦江打浦路隧道抗震性能研究  

Study on seismic performance of tunnel on Dapu road of Huangpu river considering interaction between tunnels

作　　者：吕政权[1] 任青[1] 韩东晓 段创峰[3] 

机构地区：[1]上海理工大学土木工程系,上海200093 [2]上海房屋工程建设技术发展有限公司,上海200051 [3]上海隧道工程股份有限公司,上海200233

出　　处：《水资源与水工程学报》2013年第5期96-100,共5页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金青年基金项目"考虑土体循环弱化影响的群桩动力非线性研究"(51008194)

摘　　要：在传统有限单元法中引入了粘弹性边界,建立了隧道动力时程分析模型。通过与离心振动台模型试验进行对比,验证了本方法的合理性。然后,建立了隧道结构的三维有限元动力分析模型,研究了在地震荷载作用下,复线隧道和既有隧道之间的动力相互作用,重点分析了施工加固措施、净化设备的安装、隧道管片变形缝等因素对于复线隧道抗震性能的影响,结果表明:隧道间的相互作用随间距的增大而降低,施工加固措施明显降低了结构的动力响应,净化设备对隧道结构地震响应无明显影响。This paper set up a finite element model for tunnel structures by introducing visco - elastic boundary. Through comparing the obtained result with that of centrifuge shaking table model test, the rationality of this method was verified. Moreover, a three -dimensional finite element dynamic tunnel structure model was used to study dynamic interaction of double line tunnel and existing tunnel under seismic load. More attention was paid to the influence of construction reinforcement measures, the installation of purification equipment and deformation joint of tunnel segments on seismic performance of a doubletrack tunnel. It can be concluded that the interaction between tunnels decreases with the increase of space; construction reinforcement measures evidently reduce the dynamic response of tunnel structure; purification equipment has no clear impact on earthquake response of tunnel structure.

关 键 词：隧道 有限元 施工加固 动力响应 

分 类 号：TV312[水利工程—水工结构工程]