向家坝水电站左岸300m高程以上边坡开挖工程施工控制爆破技术

Control blast technology for slope excavation works above EL. 300m on left bank of Xiangjiaba hydropower project

向家坝水电站工程是继三峡、溪洛渡工程之后的国内第3个大型水电站工程,是在金沙江流域开发上与溪洛渡同时规划设计和施工的水电站。向家坝左岸300m高程以上边坡开挖工程是其开工以来的第1个主体施工标,与该项目隔江相望的是中国云天化公司的厂区和生活区,故在施工中控制爆破成为该项目的核心。通过采取控制爆破技术措施,该边坡开挖取得了良好的效果。

Xiangjiaba hydropower project, planned designed and constructed simultaneously with Xiluodu hydropower station in the development of Jinshajiang catchment, is the third largest hydropower project following Three Gorges and Xiluodu hydropower projeets. The slope excavation above El. 300m on the left bank is the first main construction lot for Xiangjiaba hydropower project. It is very important to control the construction blast in view of the factory and living area of Yuntianbua Company just on the opposite bank of the river. By using the control blast technology, the slope excavation has achieved a good result.