公路Ⅳ级围岩支护结构对围岩稳定性影响分析

Analysis of the Influence of Supporting Structure of GradeⅣSurrounding Rock on the Stability of Surrounding Rock of a Highway

基于对周边公路隧道及公路隧道围岩稳定性及支护技术的相关研究,使用有限元分析软件MIDAS/GTS进行比较和分析隧道围岩的变形状况,研究支护结构对隧道开挖后围岩位移、应力的影响,以达到优化结构,指导施工的目的,为设计、施工技术人员提供一定的参考依据。

Based on the research on the stability and support technology of surrounding Rock Tunnel and Highway tunnel,this paper compares and analyzes the deformation condition of tunnel surrounding rock using the finite element analysis software MIDAS/GTS,and studies the influence of support structure on the displacement and stress of surrounding rock after tunnel excavation so as to optimize the structure and guide the construction,which provides a certain reference basis for the design and Construction technicians.