摘要
岩溶隧道在勘察设计施工阶段会遇到各种各样的岩溶,而针对这些岩溶的实际情况很难做出详细的评价,使得勘察设计阶段划分的围岩级别与实际施工阶段的有所不同。因此,要通过实际现场情况来随时调整原设计围岩的级别。在岩溶隧道围岩基本的分级基础上,将岩溶发育程度作为定性指标、岩溶对围岩稳定性影响程度作为定量指标,用定性和定量相结合的方式对岩体基本质量指标进行修正。并应用于峨岭关隧道岩溶围岩分级中,使其分级更加合理、准确。
Karst tunnel will encounter all kinds of karst in the exploration and design construction stage,and it is difficult to make a detailed evaluation for the actual situation of these karst,which makes the difference between the level of the design stage and the actual construction stage. Therefore,to adjust the level of the original design of the surrounding rock at any time through the actual situation. Based on the basic classification of surrounding rock of karst tunnel,the degree of karst development is used as a quantitative index,and the qualitative and quantitative methods are used to modify the basic quality index of rock mass. And it is applied to the Eling off karst tunnel surrounding rock classification,the classification is more reasonable,accurate.
出处
《水利科技与经济》
2015年第12期27-30,共4页
Water Conservancy Science and Technology and Economy
关键词
岩溶
隧道
围岩分级
修正系数
Karst
tunnel
rock mass classification
correction coefficient
