摘要
库水位变动是造成水库滑坡的一个重要原因.选取了西部某库区滑坡堆积体作为研究对象,应用FLAD 3D软件分析了蓄水前天然工况、正常蓄水位工况及水位骤降工况的稳定性.通过对比3种工况的塑性区、最大位移、安全系数分析了库水位变动对堆积体稳定性的影响.结果发现:在水位骤降工况下稳定系数大幅下降,但仅对局部造成影响.
Water level variation in reservoirs is one of the deposit body in western China is taken as study object. Via most important factors that can cause landslide. The FLAC3 D soft, the stabilities of this deposit body are calculated in river level condition, normal storage water level condition and water level drawdown condition. The influence on deposit body caused by water level variation is analyzed by the comparison of plastic zone, maximum displacement and safety factor of three working conditions. It can be concluded from the analysis that the safety factor decrease obviously in water level drawdown condition but only part of the deposit body is affected.
出处
《北华大学学报（自然科学版）》
CAS
2013年第1期121-124,共4页
Journal of Beihua University（Natural Science）
关键词
滑坡
稳定性
水位骤降
强度折减法
FLAC
3D
landside
stability
water level drawdown
strength reduction method
FLAC 3D
