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为探讨公路下挖通道排水中浅层渗井的使用性能,利用SEEP/W软件模拟调蓄式渗井向非饱和带岩层的排水过程,并分析井深、井径、渗水段长度及渗水岩层土水特性等参数对井流量的影响。研究发现,井流量与这些参数均成正相关关系,其中渗水层渗透系数最敏感,其次为井深、井径和渗水段长度;井深设置到潜水面之上2m左右处,渗井性能最优;井流回灌过程中,非饱和带岩层径向影响范围为1～2倍井深,渗井排水结束后再经过1/2排水时间,渗水层中水丘基本消散,仅在渗井周围残留有局部滞水带。
In order to investigate the service performance of shallow seeping wells in the drainage channel of highway undercut, the SEEP / W software was used to simulate the drainage process of the controlled seepage tunnel to unsaturated zone rock strata, and the well depth, well diameter, seepage length and seepage strata Water characteristics and other parameters of the well flow rate. It is found that the well flow rate is positively correlated with these parameters. The permeability coefficient of the seepage layer is the most sensitive, followed by the well depth, well diameter and length of the seepage section. The well depth is set to about 2m above the surface of the dive, In the process of flow recharging, the radial influence range of unsaturated zone rock strata is 1 ~ 2 times deep. After the draining run-out of drainage seep through 1/2 drainage time, the water dome in water seepage layer basically dissipates, and only some parts remain around the seepage well Stagnant water.