摘要
利用数值分析方法,针对某公路隧道进洞偏压段施工过程进行模拟计算,探究了隧道开挖引起的围岩变形规律及初期支护结构受力特性。结合现场监控量测技术,通过对比分析围岩变形数据,动态地掌握隧道施工过程,为围岩类别调整、初期支护和二次衬砌设计参数的调整提供了依据。
The construction process of the road tunnel was numerically calculated in the method of numerical analysis, and the resulting surrounding rock deformation laws and early supporting structure stress characteristics were studied. Combined with in - situ monitoring technology,and compared with surrounding rock＇ s deformation data, the process of tunnel construction was mastered dynamically, which provides the basis for surrounding rock＇s classification adjustment, design parameters＇ adjustment of early supporting structure and secondary lining structure.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2012年第5期65-70,共6页
Journal of Railway Science and Engineering
基金
国家自然科学基金面上资助项目(50878213)
湖南省交通建设计划项目(200928)
关键词
偏压隧道
数值模拟
进洞施工
监控量测
unsymmetrical pressure tunnel
numerical analysis
entrance construction
monitoring and measurement
