an investigation on tunnel -adjacent undergroun structure interaction during construction

tunneling is increasingly being seen as an environmentally preferable means of providing infrastructure such as transportation and utilities to densely populated urban areas in some cases geometrical and environmental conditions force the projects to pass near existence tunnels in orther projects for reducing the span of tunnels ans also to reduce the deformation of medium the twin tunnels in specific distance should be used in this situation the effect of tunnel on adjacent under groung structures should be investigated in this study the interaction of two tunnels and theinfluence of this interaction on result of analysis in niyayesh sadr tunnel are investigated.

Keywords:

tunnel , undergroun structure , interactin , deformation , finite element