考慮庫水位波動和暴雨影響的滑坡穩(wěn)定性分析

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關(guān)鍵詞：滑坡；動水壓力；滲透系數(shù)；數(shù)值模擬；穩(wěn)定系數(shù)

中圖分類號：P642.22 文獻(xiàn)標(biāo)志碼：A 文章編號：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

庫水位變化會引起滑坡穩(wěn)定系數(shù)及失穩(wěn)機(jī)理改變。（剩余4219字）