山岭隧道复合衬砌结构水压力影响因素分析

Analysis of Influencing Factors of the Water Pressure of Mountain Tunnel Composite Lining Structure

采用正交试验设计理论对隧道复合衬砌结构水压力影响因素进行了分析,得出影响山岭隧道复合衬砌结构外水压力最重要的因素是隧道排水系统的排水能力,复合衬砌结构外水压力随排水能力的增大呈线性减小趋势;同时给出利于控制复合衬砌结构外水压力的山岭隧道防排水设计建议。

This paper analyses factors influencing water pressure of tunnel composite lining structure by orthogonal design theory and concludes that the most important factor affecting external water pressure of the structure is drainage ability of the tunnel drainage system. Water pressure of the composite lining structure decreases linearly with the drainage ability increases. The paper also gives some drainage design suggestions which help controlling external water pressure of mountain tunnel composite lining structure.