摘要
基于数值模拟方法,研究了隧道开挖后有、无衬砌支护情况下地下渗流场和水位的变化,并分析了双孔隧道对渗流场的影响。通过分析,得出了不同工况下孔隙水压力的变化和渗流场的影响范围,并且得出了地下水位与时间的关系,为隧道的设计、施工以及隧址区环境的保护提供依据。
Tunnel excavation always induces the change of ground water seepage field and ground water level.Groundwater lowering would cause environmental destruction at the site where tunnel excavated.Studying the change of ground water level is significance for environment protection at the site where tunnel excavated.Based on the numerical simulation,the change of ground water seepage field is studied under the lined and unlined conditions after tunnel excavation.The influence of twin tunnels on the seepage field was also analyzed,and the change of pore water pressure and the influence range of seepage field is obtained.The achievements can provide a reference for the design and construction of similar projects.
出处
《交通科学与工程》
2015年第2期58-63,共6页
Journal of Transport Science and Engineering
关键词
隧道开挖
数值模拟
渗流
地下水位变化
tunnel excavation
numerical simulation
seepage
change of ground water level
