摘要
新大瑶山隧道穿越砂岩段揭露一高压出水点,出水点压力为3～4 MPa,流量为430 m3/h左右,水头喷射距离达47m,在突水治理中采取了引排水、施作止水墙、顶水注浆和全断面帷幕注浆综合技术措施,成功地封堵了高压突水,取得了理想的技术经济效果。文章介绍了新大瑶山隧道的工程概况、工程地质及水文地质条件,以及涌突水情况和治理措施。
The project profile,engineering geology and hydrogeologic conditions of Dayaoshan tunnel are introduced.A water gushing spot with high water pressure was found in the tunnel sandstone areas.The pressure was 3-4 MPa at the outgushing point.The flow amounted 430 m3/h,the spraying distance reached 47m caused by the hydraulic head.Combined techniques of diversion and drainage measures,construction of water-stopping wall,intermittent grouting and full-face curtain grouting were adopted to successfully tackle the water gushing with desired techno-economic effects acquired.
出处
《现代隧道技术》
EI
北大核心
2010年第2期58-62,共5页
Modern Tunnelling Technology
关键词
隧道高压突水
超前帷幕注浆
引排水
顶水注浆
止浆墙
High-pressure water gushing
Advance curtain grouting
Water diversion and drainage
Intermittent grouting
Slurry wall
作者简介
王国际（1955-），男，硕士研究生导师，教授，系主任，特聘专家，主要从事工程灾害处理和施工安全研究工作，E-mail：gongzhw2845@163．com．
