摘要
某抽水蓄能电站上水库岩性为气孔状玄武岩和凝灰质角砾岩,通过对原岩的物理力学性质研究,二者指标均不能满足坝体对堆石料的质量指标要求。其挖填特征表现为库区开挖料多于填筑料需求量,且开挖料不能直接用于筑坝。为提高电站的经济效益,对库内开挖料进一步开展了相关物理特性、力学特性、渗透与渗透变形特性等试验研究,次中选优,认为气孔状玄武岩夹杂部分凝灰质角砾岩可用于大坝次堆石区的填筑,从而达到了挖填平衡的最优化设计目的。
The lithology of upper reservoir in a pumped storage power station is stomatal basalt and tuffaceous breccia. Through the study of the physical and mechanical properties of the original rock,the quality indicators of the two rocks cannot meet the dam fill material requirement. The excavated material in the reservoir area is more than the demand of the filling,and the excavated material cannot be directly used for dam construction. In order to improve the economic benefit of the power station,the relevant physical characteristics,mechanical properties,infiltration and infiltration deformation characteristics of the excavation materials were studied. The stomatal basalt can be used in the secondary dam rock fill area so as to achieve the balance of cut and fill.
作者
肖海波
李院忠
赵开开
Xiao Haibo;Li Yuanzhong;Zhao Kaikai(Beijing Engineering Corporation Limited, Beijing 100024, China)
出处
《工程勘察》
2018年第5期22-25,共4页
Geotechnical Investigation & Surveying
关键词
挖填平衡
开挖料
上水库
抽水蓄能电站
cut and fill balance
excavated material
upper reservoir
pumped storage power station
