铁路隧道排水对环境的影响分析

发布时间：2018-05-20 08:28

本文选题：铁路隧道 + 排水　；参考：《铁道标准设计》2017年06期

【摘要】：西铁车2号隧道位于山东省境内,全长7 851 m,洞身围岩主要为寒武系中统灰岩,无大规模岩溶现象,施工过程中,局部段落存在渗水现象,为了分析隧道排水对周围环境的影响,首先通过大口径井抽水理论计算分析隧道区域内的抽水影响半径,其次根据区域内的水文地质条件分析其补给、径流、排泄的关系,最后根据历年区域内的月降雨量综合分析隧道施工排水对区域水文地质环境的影响。根据影响半径预测隧道排水可能影响宽度为136~208 m,根据径流状态分析,隧道排水对泉峪村水井基本无影响,对西埠村水井有一定的影响,根据降雨量分析,2013年降雨量比2012年少了42.8%。综合上述分析,隧道开挖排水对泉峪村水井基本无影响,对西埠村水井有一定的影响,地下水水位下降的主要原因是该地区降雨量的大量减少。
[Abstract]:The No. 2 tunnel of Xitie Che is located in Shandong Province, with a total length of 7 851 m. The surrounding rock of the tunnel is mainly limestone of the Cambrian Middle Series, and there is no large-scale karst phenomenon. During the construction process, there is a phenomenon of water seepage in some sections. In order to analyze the influence of tunnel drainage on the surrounding environment, the influence radius of pumping water in the tunnel area is calculated and analyzed by the pumping theory of large diameter well, and the relationship among recharge, runoff and discharge is analyzed according to the hydrogeological conditions in the tunnel. Finally, the influence of tunnel construction drainage on regional hydrogeological environment is analyzed synthetically according to the monthly rainfall in the past years. According to the influence radius, the possible influence width of tunnel drainage is 136 ~ 208m. According to the analysis of runoff state, tunnel drainage has no effect on Quanyu village well, but it has certain influence on Xibu village well. According to rainfall analysis, the rainfall in 2013 is 42.8 less than that in 2012. Based on the above analysis, the excavation and drainage of the tunnel has no effect on the wells in Quanyu village, but it has a certain effect on the wells in Xibu village. The main reason for the decrease of groundwater level is the reduction of rainfall in this area.
【作者单位】：中铁工程设计咨询集团有限公司;
【分类号】：U453.6

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