杨房沟水电站大型崩坡积体开挖出渣施工技术研究

Study on Excavation and Mucking Technology of Mass Colluvium Slope in Yangfanggou Hydropower Station

杨房沟水电站崩坡积体的开挖出渣较常规的土方边坡开挖出渣有较大的区别,笔者详细介绍了杨房沟水电站崩坡积体利用上游冲沟溜渣和下部集渣平台出渣施工方法,为大型土方边坡开挖提供了一种安全性更高的施工方法,同时也总结了该施工方法施工过程中出现的一系列问题及相应的处理方法,其研究成果可供其他类似工程参考。

Excavation and mucking of colluvium slope in Yangfanggou Hydropower Station is different from that of the conventional earth slope.This paper introduces in detail excavation and mucking scheme of colluvium in Yangfanggou Hydropower Station utilizing upstream gully flow and lower collecting platform,provides a safer method for soil excavation on large-scale projects,identifies the problems occurred in construction and the treatment methods.The study in this paper provides reference for other similar projects.