岩土力学Issue(5)：1259-1263,1273,6.
瀑布沟水电站砾石土心墙初次蓄水期原位钻孔渗流试验研究
In-situ drilling tests of seepage in gravel soil core wall during the first impoundment in Pubugou hydropower station
摘要
Abstract
At present the prototype monitoring is commonly used to know the seepage in performance period in earth-rock dam. Much research to stable seepage and there is no report about in-situ drilling tests of seepage during the first impoundment. In Pubugou hydropower station,the core-wall is such thin and not decorated with any monitoring instruments at early time above the elevation of 788.00 m. Weak areas of anti-permeability are revealed probably by the earlier monitoring, in-situ drilling tests of seepage is carried out in the core-wall during the first impoundment at 0+131and 0+434 section in August 2010. The results of the test analysis shows that, weak penetration area exists at some elevation of section 0+131and section 0+434 in the core-wall of Pubugou hydropower station. It also shows that under the necessary condition, in situ drilling tests in the core-wall during the first impoundment is practical and meaningful. The anti-permeability of fissured soil under the protection of reversed filter is suggested to be evaluated, the seepage monitoring in core-wall should be strengthened to inspect the safety of the core-wall. The experiment researches provide a reference for other gravel soil core wall of the dam design, construction, and the safety of the operation period.关键词
土石坝/渗透试验/心墙/初次蓄水期Key words
earth rock dam/permeability test/core wall/fisrt impoundment分类
建筑与水利引用本文复制引用
胡万雨,陈向浩,林江,况磊强..瀑布沟水电站砾石土心墙初次蓄水期原位钻孔渗流试验研究[J].岩土力学,2013,(5):1259-1263,1273,6.基金项目
国家自然科学基金项目(No.51079093)。 （No.51079093）
