Stress And Deformation Analysis Of Large-scale Comprehensive Pipe Gallery Under Different Working Conditions

In recent years,more and more attention has been paid to the comprehensive pipeline gallery.In the recent construction of Xiongan New Area(located in Baiyangdian District),the underground comprehensive pipeline gallery is a very important content.Based on the engineering and hydrological environment data of Baiyangdian District,the large-scale comprehensive pipeline Gallery has been simulated and analyzed in advance,in order to get some regular conclusions,which will serve as a new area in the future.The comprehensive pipeline gallery and underground engineering construction provide reference,and enhance people's understanding of the interaction between soil and large-scale comprehensive pipeline Gallery structure.In this paper,the following studies are planned for large-scale comprehensive pipeline galleries:1.Under the condition of soil layer and without considering groundwater in Baiyangdian area,a numerical model of large-scale comprehensive pipeline gallery is established to study the influence of embedding depth on the stress,settlement and deformation of roof,floor,side wall of pipeline gallery,floor of pipeline cabin,floor of overhaul layer and soil stress around the gallery.2.According to the average groundwater level around Baiyangdian in recent years,a numerical model was established to simulate the influence of groundwater on large-scale comprehensive pipeline corridor,and the numerical simulation results were compared with those without considering groundwater.3.Considering the variation of groundwater level with the surrounding environment,the variation of stress,settlement deformation and soil stress with the groundwater level in different parts of the comprehensive pipe gallery is obtained by numerical simulation for the large-scale comprehensive pipe gallery with the determination of buried depth.