摘要
毛坝1号隧道右线YK297+293特大高压涌水段的涌水特点为水头压力大、持续时间长、涌水量大;研究了涌水产生的机理,制定并实施了泄水减压结合小导管预注双液浆的施工方案,快速有效通过特大高压涌水地质灾害洞段,效果显著。
The characteristics of the gushing water at the high pressure water gushing segment on the Maoba 1# tunnel YK297 ＋ 293 right line are high head pressure, long duration and large water flow. The thesis studies the principal of the gushing water＇ s generation, works out and implements the construction program of combining the discharge decompression with ductule double-liquid grouting. This method can make the construction complete through the geological disasters area of the high pressure water gushing segment and achieves the good effect.
出处
《铁道建筑技术》
2009年第11期82-85,共4页
Railway Construction Technology
关键词
隧道施工
高压涌水
泄水减压
小导管
注浆加固
tunnel construction
high pressure water gushing
discharge decompression
ductule
grouting reinforcement
