Numerical Analysis of Reserving Core Soil with Annular Excavation Method Used in Loess Tunnel

Autor: Zhong Ming Su, Zhi Jie Sun
Rok vydání: 2014
Předmět:
Zdroj: Advanced Materials Research. :143-146
ISSN: 1662-8985
Popis: To research the deformation regularity of loess tunnel in reserving core soil with annular excavation method compared with other construction methods, 3D Numerical Simulation is applied and the loess tunnel of highway is taken as an example. The research results show that[1]:The deformation of surrounding rock affected by the area of core soil is small.The stress regularity of different support structure influence on the area of core soil is different. This is mainly reflected that the maximum pressure stress of primary support increases with the area of core soil’s increasing, but the minimum bending moment of secondary lining is not appeared in the working condition which the minimum core soil area is.
Databáze: OpenAIRE