考虑库水位波动和暴雨影响的滑坡稳定性分析

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关键词：滑坡；动水压力；渗透系数；数值模拟；稳定系数

中图分类号：P642.22 文献标志码：A 文章编号：1003-5168（2025）07-0039-05

DOI： 10.19968/j.cnki.hnkj.1003-5168.2025.07.008

Landslide Stability Analysis Considering the Influenceof Reservoir WaterLevel Fluctuation and Heavy Rain

SONG Yongdong （Shuifa Planning and Design Co.，Ltd.， Jinan 25O1O9， China）

Abstract：[Purposes] This paper aims to study the change of stability coeficient of hydrodynamic pressure landslide with different permeability coefficients under the action of reservoir waterlevelfluctuation and heavy rain. [Methods]Taking a specific landslide as the object，this paper numerically simulates its stability coefficient based on saturated-unsaturated seepage theory and finite element analysis.The stability coefficient calculation conditions are the change of reservoir water level between 175 and 145 m， diferent reservoir water levelfluctuation rates and 3 days of continuous heavy rain.[Findings] With the decrease of reservoir water level，the stability coefficientof hydrodynamic pressure landslide decreases; the stability coefficient of landslide increases with the increase of reservoir water level; three days of heavy rain leads toa significant decrease in landslide stability，and the rateof decrease of stability coeficient increases first and then decreases with the increase of permeability coefficient.[Conclusions] The fluctuation rate of reservoir water level directlyaffects the stability coeficient of landslide，and heavy rain will aggravate this effect.The larger the permeability coefficient is，the more obvious the effect is.

Keywords： landslide; dynamic water pressure;permeability coeficient; numerical simulation; stability coefficient

0 引言

库水位变化会引起滑坡稳定系数及失稳机理改变。（剩余4219字）