水工隧洞内径对软岩稳定性影响分析研究  

Analysis of Influence of Inner Diameter of Hydraulic Tunnel on Stability of Soft Rocl

作　　者：安普太[1] An Putai(Shanxi Water Resources and Hydropower Survey and Design Institute Co.,Ltd.,Taiyuan 030024,Shanxi)

机构地区：[1]山西省水利水电勘测设计研究院有限公司,山西太原030024

出　　处：《陕西水利》2024年第7期146-149,共4页Shaanxi Water Resources

摘　　要：软岩隧洞的衬砌对工程投资影响较大,研究软岩围岩的稳定性与不同隧洞洞径之间的变化趋势非常重要。依托老鹰水库水源保护—望水河泄水工程,在软岩地质特性的分析基础上,通过对不同洞径下围岩变形、围岩应力等的计算分析,初步得出可不衬砌的最小洞径,为类似工程提供借鉴。The lining of soft rock tunnel has a great influence on project investment,so it is very important to study the stability of soft rock surrounding rock and the variation trend between different tunnel diameters.Based on the water source protection of Eagle Reservoir-Wangshui River drainage project,based on the analysis of the geological characteristics of soft rock,through the calculation and analysis of the deformation and stress of surrounding rock under different hole diameters,the minimum hole diameter that can not be lined is obtained,which can provide reference for similar projects.

关 键 词：软岩隧洞 洞径 数值模拟 

分 类 号：TV672.1[水利工程—水利水电工程]