六河段隧道是大伙房输水工程中透水量大、地质最为复杂的地段,也是制约整个工程施工的关键地段。本文通过建立三种数学模型,对六河段隧道的排水量进行了计算分析,并以此为依据对防排水方案进行了研究。 Liuhe tunnel is Dahuofang water project in the large amount of water, the most complex geological areas, but also restrict the construction of the key sections. In this paper, three kinds of mathematical models are set up to calculate and analyze the displacement of the six sections of the tunnel. Based on this, the drainage and drainage schemes are studied.