滇中引水工程小鱼坝倒虹吸1、2号危岩体治理

Treatment of Dangerous Rock Mass in Xiaoyuba Inverted Siphon No.1 and No.2 of Yunnan Water Diversion Project

水利工程中高陡边坡危岩体治理作为水电水利工程建设中的重要技术问题,危岩体因稳定性差,施工难度较大,施工安全风险突出,对水工建筑物施工期和运行期的安全影响较大。以云南滇中引水工程昆明段小鱼坝倒虹吸1号、2号危岩体治理施工为例,介绍了危岩体治理采用了防护网、锚筋桩、喷混凝土、施工期及工后监测等方法和措施,经实践表明危岩体治理效果达到预期目标。

As an important technical problem in the construction of hydropower and water conservancy projects,the treatment of dangerous rock mass with high and steep slope is difficult to construct due to its poor stability and prominent construction safety risk,which has a great influence on the safety of hydraulic structures during construction and operation.Taking the treatment and construction of Xiaoyuba inverted siphon No.1 and No.2 dangerous rock mass in Kunming section of water diversion project in Yunnan as an example,this paper introduces the methods and measures for the treatment of dangerous rock mass,such as protective net,anchor bar pile,shotcrete,construction period and post-construction monitoring.The practice shows that the treatment effect of dangerous rock mass reaches the expected target.