摘要
库水位下降过程中,坝体黏性土对水份的吸力作用,使得黏性土体内的水份不能及时消散,造成黏性坝体内水位高于库内水位,所发生现象对坝坡渗流、稳定与应力均产生较大影响。以某水库工程为例,分析在库水位下降前和下降过程后的渗流稳定、应力及水压荷载下应力变形。以期研究结果能对土石坝水库调度运行管理起一定的指导作用。
In the process of reservoir water declining, The water level in the viscous soil can not be dissipated in time, resulting in the water level in the viscous dam is higher than the water level in the reservoir, and the phenomenon has great influence on the dam slope stability, seepage and stress, taking a reservoir project as an example, analyzes the stress and deformation of seepage sta- bility, stress and water pressure load before and after the drawdown of reservoir water level, The research results can guide the operation and management of earth rock dam reservoir.
作者
艾志娟
周清勇
AI Zhi - juan ZHOU Qing - yong(Jiangxi Province Linchuan District River Authority, Fuzhou 344100, Jiangxi, China Jiangxi Provincial Institute of Water Sciences, Nanchang 330029, China)
出处
《水利科技与经济》
2017年第9期26-30,共5页
Water Conservancy Science and Technology and Economy
关键词
水位下降
渗流
稳定
应力
水压荷载变形
安全系数
the water level drop
seepage
stability of field
stress field
deformation of hydraulic load
safety coefficient
