摘要
Abstract
In order to enhance the safety management level of reservoir,the changing law of the slope stability safety factor of the soil mass on the right bank of the reservoir for a hydropower station under various water level fluctuation rates are calculated with the modules of SEEP/W and SLOPE/W in the software of GEO-SLOPE respectively on the basis of the limit equilibrium theory.The result shows that under the normal storage condition,the changing trend of the curve of the slope stability safety factor is to be lowered at first and subsequently raised,and then tends to be stable.The quicker the water level raising rate is,the higher the slop stability safety factor is to be and the more stable the slope is to be.However,when the storage rate surpasses a certain value,the slope stability is to be lowered.During the lowering of the reservoir water level,the slope stability factor is lowered at first and then stably raised after reaching its minimum value.Therefore,for ensuring the dam slope stability during the construction of the reservoir,the status of the structural plane inside of the slope must be monitored at all time during the storage and discharge of the reservoir,while the water level fluctuation rate must be reasonably controlled during the operation of the reservoir as well.关键词
水库边坡/水位变动速度/数值分析/边坡稳定性/安全系数Key words
reservoir slope/water level fluctuation rate/numerical analysis/slope stability/safety factor分类
建筑与水利
