摘要
鲁布革水电站工程大坝是一座高103.8m的窄心墙堆石坝,坝内埋设了测变形、测渗流和测土压力、孔隙压力的各种仪器。从大坝填筑一开始就做连续的观测。心墙内埋设的渗压计和土压力计对心墙风化料在施工期和蓄水期的孔隙水压力和变形特点作了观测。下游坝壳两个高程上埋的垂直水平位移计对堆石料的变形特点做了观测。由观测成果得出结论,风化料是一种很好的心墙防渗料,洞挖石碴料是一种好的堆石料。
Lubuge dam is a rockfill dam with central earth core, 103.8m high. The material for the earth core is soft weathered rock. In the dam there are some kinds of instruments for the observation of deformation, permeability, soil pressure and pore pressure. Observation has been performed since the beginning of the construction of the dam. Piezometers and pressure cells installed in the core monitored the characteristics of pore pressure and deformation during construction and the first impounding of the reservoir. Vertical and horizontal extensometers located at two elevations in the downstream rockfill shell measured the deformation of rock fill. From observation we can conclude that soft weathered rock is a very good impervious core material and that tunnel-excavation-material can be used as excellent rock fill.
出处
《大坝观测与土工测试》
北大核心
1991年第2期73-81,共9页
Dam Observation and Geotechnical Tests
