Numerical Simulation and Analysis of Excavation and Support in Traffic Tunnel of a Power Station?

• 作者: ZHOU Weibo LEI Ming WANG Tao SARHOSIS Vasilis
• 来源期刊: 施工技术
• 学科: 交通运输
• 年，卷（期）: 2021,（24）
• 所属期刊栏目: Underground Engineering
• 页码范围: 147-151
• 页数: 5页
• 分类号: U455
• 语种: 中文
• DOI: 10.7672/sgjs2021240147

摘要

To evaluate the rationality of the excavation and support structure design in tunnel engineering, numerical simulation and structural deformation stability analysis in excavation and support in a traffic tunnel are carried out in combination with the practical geological conditions study. The computation results demonstrate that following excavation, the surrounding rock deforms minimally and has a large self-bearing capacity. The shotcrete-bolt structure in the initial support has small deformation and stress, ensuring that it meets the safety and stability requirements. The stress of the secondary lining structure is calculated, which can also meet the structural strength requirements. The traffic tunnel ' s supporting system is a practical and cost-effective manner. The proposed study will provide a specific reference for the design and research of the support structures in traffic tunnels.