有衬砌条件下隧道地下水渗流场变化规律研究

摘要

基于数值模拟方法，研究了隧道开挖后有衬砌支护情况下渗流场的变化及地下水位的变化情况，并分析了无衬砌条件下双孔隧道对渗流场的影响，得出了不同工况下孔隙水压力的变化情况及渗流场影响范围，并且得出了地下水位随时间的变化情况，可为隧道的设计、施工以及隧址区环境的保护提供参考。%Based on the numeric simulation method, the paper researches the changes of the seepage fields under the lining support after the tun-nel excavation and alteration of the underground water level, analyzes the influence of the double-hole tunnel under the lining condition, con-cludes the changes of the pore water pressure under different conditions, and achieves the changes of the underground water level along with the time, so as to provide some reference for the design of tunnels, construction and protection of the tunnel address areas.