期刊名称:International Journal of Advances in Engineering and Management
电子版ISSN:2395-5252
出版年度:2022
卷号:4
期号:2
页码:874-880
DOI:10.35629/5252-0402669674
语种:English
出版社:IJAEM JOURNAL
摘要:Using the MIDAS GTS NX finite element analysis software, the vertical and parallel combination of the step method, CD method and CRD method are simulated, and the impact of the tunnel on the stratum under the excavation of different construction methods is analyzed. The results show that: the effect of longitudinal combined construction method is greater than that of parallel combined construction; when the longitudinal construction method is combined, the surface settlement displacement of the transition from small section to large section is slightly smaller than that of large section to small section; when parallel combined construction, The settlement value is similar to the superposition of the ground settlement values at the corresponding positions caused by the excavation of the two tunnels. Taking the large hole as the first tunnel excavation tunnel is conducive to controlling the construction disturbance deformation.