摘要
基于对目前国内外广泛用于土石坝渗流安全监测的两种仪器的分析 ,认为测压管由于迟后时间的影响 ,不宜用在监测土石坝浸润线和坝体内部渗透水压力的粘性土体中 ,但可用在渗透系数大于 1 0 -3 cm/s的无粘性土体内 ;渗压计是一种理想的渗流监测仪器 ,但应用时必须在专业人员指导下进行。
Based on the analysis of two kinds of earth rockfill dam safety monitoring apparatuses applied widely at home and abroad, it is thought that the piezometer is not fit to be used in clay to monitor the phreatic line of earth rockfill dams or seepage water pressure in dams because of the influence of lag time, but it can be used in non cohesive soil whose permeability coefficient is larger than 10 -3 cm/s. The seepage pressure meter is a kind of ideal permeability monitoring apparatus, but it must be used under the supervision of professional personnel.
出处
《大坝观测与土工测试》
2000年第5期11-13,共3页
Dam Observation and Geotechnical Tests
关键词
测压管
渗压计
土石坝
渗透压力
渗流
安全监测
piezometer
seepage pressure meter
seepage pressure
lag time
safety monitoring
