黄土软岩公路隧道防排水合理结构型式研究  

Research on reasonable section configuration of waterproofing and drainage in loess and soft surrounding rock road tunnel

作　　者：赖金星[1] 李宁军[1] 谢永利[1] 

机构地区：[1]长安大学桥梁与隧道陕西省重点实验室,西安7100640

出　　处：《岩土力学》2007年第3期614-618,共5页Rock and Soil Mechanics

基　　金：国家西部交通建设科技项目(No.200131800021);长安大学科技发展基金(No.06Q01)

摘　　要：针对甘肃省及临近地区干旱、半干旱黄土地区工程地质、水文地质特点,实地调查该地区已建隧道渗漏水情况,分析该地区隧道渗漏水成因。以天二级汽车专用公路9座隧道为依托,应用工程类比法提出适合该地区的涌水类型划分方法,涌水类型划分为滴渗、淋淌、股水和突水4种,并分析了影响隧道防排水结构设计的因素和防排水设计原则。在此基础上,提出了防排水设计的4种合理结构型式及其适用条件。研究结果为天公路、柳公路防排水设计与施工提供了有效指导。In light of the characters of engineering geology and hydrogeology in Gansu Province and near areas, influencing factors of the design for waterproof and drainage in road tunnel are analyzed; the topographical features, vegetation, construction method, leakage of groundwater of loess and weak surrounding rock of highway tunnel in the district are investigated. Cause of leakage in the tunnel is analyzed. On the basis of the natural conditions, field investigation of seepage and disaster conditions of road tunnel, classification of outflow types for highway tunnel is presented with analogical method. Based on nine tunnels in Tianshui to Chankou Highway, principle of design for waterproof and drainage in highway tunnels construction is provided. Based on above analysis, four reasonable structural styles and section configurations for design of waterproof and drainage are proposed.

关 键 词：黄土软岩公路隧道 防排水 断面结构型式 

分 类 号：U452[建筑科学—桥梁与隧道工程]