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严寒地区隧道洞口渗井排水技术探讨
引用本文:刘学霸,杨春勃,梁文雨,王超朋.严寒地区隧道洞口渗井排水技术探讨[J].隧道建设,2019,39(3):430-434.
作者姓名:刘学霸  杨春勃  梁文雨  王超朋
作者单位:(中铁隧道集团二处有限公司, 河北 三河 065201)
摘    要:为缓解严寒地区隧道排水口易冻堵、山体地下水流失严重等问题,在既有的路基渗井排水系统的研究基础上,分析总结前人的经验,然后针对寒区隧道特殊的排水结构和严寒地区恶劣的自然气候条件,对传统渗井结构进行优化设计,将渗井结构应用于隧道排水工程中,提出用渗井排水系统来代替传统的保温出水口完成洞口排水的任务。在满足渗水条件和排量要求的前提下,针对不同的水文地质条件设计3套渗井排水方案,同时给出各方案的设置参数和结构尺寸计算公式。文章提出的渗井排水系统相较传统的洞口排水方式最大的优势在于水流经过渗滤直接排入地下,可解决排水口易冻堵的难题,减少水分蒸发,有利于地下水资源的储存,符合绿色环保和可持续发展的理念。

关 键 词:严寒地区  隧道洞口排水  渗井排水  绿色环保  
收稿时间:2018-05-07
修稿时间:2018-11-22

Seepage Well Drainage Technology for Tunnel Portal in Cold Region
LIU Xueba,YANG Chunbo,LIANG Wenyu,WANG Chaopeng.Seepage Well Drainage Technology for Tunnel Portal in Cold Region[J].Tunnel Construction,2019,39(3):430-434.
Authors:LIU Xueba  YANG Chunbo  LIANG Wenyu  WANG Chaopeng
Institution:(The 2nd Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)
Abstract:The drainage at tunnel portal in cold region is easily frozen, and the ground water loss is serious. Hence, the drainage scheme of seepage well instead of traditional insulation outfalls is proposed for tunnel portal based on existing seepage well drainage system of highway subgrade and drainage experience. And then traditional seepage well structure is optimized considering to the special drainage structure in cold region and harsh natural conditions. Finally, three seepage well drainage schemes corresponding to different hydro geological conditions are designed, and the setting parameters of every scheme and calculation formulas for structural size are given. The water percolates and flows to underground directly in the seepage well drainage system, which is superior to the traditional one in terms of water storage, green and environmental protection, and avoiding water frozen and evaporation.
Keywords:cold region  tunnel portal drainage  seepage well drainage  green and environmental protection
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