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拱坝荷载主要通过拱的作用传到坝端两岸,维持拱坝的稳定性主要依靠大坝两岸岩体支撑作用,因此拱坝两岸基础开挖质量的好坏对大坝的安全稳定运行起着重要的作用。高边坡开挖,地质条件复杂,采取合适的施工技术措施是保证坝基开挖质量的关键。牛头山水电站两岸坝基开挖采用不同的爆破组合方式进行,取得良好的效果。该文对此进行总结,供参考。
The load of arch dam mainly reaches the both banks of dam by the function of arch. Maintaining the stability of arch dam mainly depends on the support of rock mass on both banks of dam. Therefore, the quality of foundation excavation on both sides of arch dam plays an important role in the safe and stable operation of dam Important role. Excavation of high slope, complex geological conditions, to take appropriate construction technology and measures to ensure the quality of the foundation excavation key. Dam foundation excavation at both sides of Niutoushan Hydropower Station adopts different blasting combinations to achieve good results. This article summarizes this for reference.