摘要
化马隧道涌水为高压宽张岩溶裂隙水,具有水量大、压力高、涌水连续、贯通性好、补给水头稳定等特点。通过详细的地质勘探、地质超前预报、超前钻孔探测水情,掌握了涌水的特点和性质,提出了采用迂回导坑绕避结合泄水洞排水的处理方案,顺利的通过了隧道涌水段。
The gushing water in the Huama Tunnel shows the main characteristics of being large in volume, high in pressure, strong in inter-connectivity and steady in waterhead, etc. The characteristics and properties of the gushing water are obtained by means of detailed geological exploration, advanced forecast of geological conditions, and performing advanced drilling to explore hydrogeological conditions, upon the basis of which a composite treating scheme of avoidance by circuitous heading in combination with the discharge tunnel is proposed. With the composite treating scheme adopted and the drainage for the tunnel properly dealt with, the excavation is safely performed through the section with gushing water.
出处
《国防交通工程与技术》
2012年第3期61-64,57,共5页
Traffic Engineering and Technology for National Defence
关键词
隧道
涌水
高压岩溶裂隙水
超前地质预报
超前水平钻孔
迂回导坑
绕避
泄水洞
tunnel
gushing water
groundwater from high-pressure karst-fractured cracks
advanced forecast of geological conditions
advanced horizontal drilling
circuitous heading
avoidance
discharge tunnel
