深溪沟水电站施工期安全监测技术

Safety Monitoring Technology for Shenxigou Hydropower Station During Construction Period

深溪沟水电站位于四川省大渡河流域,施工条件复杂、施工干扰大、左右岸为高陡边坡,开挖与支护工程量大,钻爆与支护工程交叉施工。为确保施工安全,采用了左右岸边坡原型观测、围岩收敛变形监测、爆破振动安全监测、爆破岩体松动圈声波监测四种监测手段,进行了有效的安全监测,促进了工程安全高效施工。

Shenxigou hydropower station is located in Dadu River Basin in Sichuan Province.It is Characterized with complicated geological conditions,significant construction interference,high and steep slopes in right and left banks,large quantities of excavations and supports,alternate constructions for drilling and blasting with support implementation.To ensure construction safety,four monitoring methods are used,namely prototype observations on right and left bank slopes,convergence and deformation monitoring for surrounding rocks,safety monitoring for blasting vibration and sound wave monitoring for relaxation zone of blasted rock mass.In this way,the project is constructed safely and effectively by above mentioned safety monitoring.