漫滩电站引水洞突泥突水处理技术

Treatment to Mud Gushing and Water Inrushing for Water Diversion Tunnel at Mantan Hydropower

漫滩电站引水洞隧道具有多种不良地质,施工中多次发生特大涌水、突泥灾害,造成严重坍塌事故。通过对隧道突泥、突水灾害产生的原因及坍塌形态进行详细地分析研究,采取了一系列行之有效的处理措施,并对洞身及坍塌体进行了固结和加固,快速而有效地完成了突泥段施工。

The water diversion tunnel at Mantan Hydropower was a geologically varied adverse tunnel where disasters like heavy water inrushing,mud gushing happened frequently and resulted in severe collapse. Through detailed analysis and research to the cause of the mud gushing and water inrushing occurred to the tunnel and the pattern of the collapse,a series of practical and effective measures were taken to conduct the treatment together with consolidation and reinforcement to the tunnel and collapsed subject,the construction works was completed with a high speed and efficiency. This article introduces the general situation of the mud gushing and water inrushing disasters and measures taken to conduct the comprehensive treatment to them.