隧洞地下水渗流场变化对衬砌受力影响的数值分析

摘要

In order to study the influence of the changes of groundwater seepage field on the stress of lining structure,through the establishment of the finite element model of plane strain seepage coupling,the numerical simulation of tunnel excavation,drainage and consolidation grouting is carried out,the variation of groundwater seepage field in different construction measures and the influence on the stress of masonry structure are analyzed dynamically.%为研究隧洞地下水渗流场变化对衬砌结构受力的影响,通过建立平面应变渗流耦合有限元模型,对隧洞开挖、设置排水管、进行固结灌浆等不同施工工况进行了数值模拟,动态地分析了不同施工措施时的地下水渗流场变化以及相应对衬结构受力的影响.