CAJ | 학술논문

为分析按直线滑动法计算边坡稳定系数的合理粘聚力范围，对不同内摩擦角（20°～40°）和粘聚力（≤10 kPa）的60个边坡算例，按直线滑动法、简化Bishop法和强度折减有限元法计算其稳定系数．结果表明：简化Bishop法与强度折减有限元法的计算值接近；不考虑粘聚力的直线滑动法偏保守，考虑粘聚力的直线滑动法偏危险；以简化Bishop法为参照标准，偏差不超过20％为可接受范围，则只有在粘聚力不超过1.0～1.5 kPa时，才能按直线滑动法计算边坡稳定系数．
위분석안직선활동법계산변파은정계수적합리점취력범위，대불동내마찰각（20°～40°）화점취력（≤10 kPa）적60개변파산례，안직선활동법、간화Bishop법화강도절감유한원법계산기은정계수．결과표명：간화Bishop법여강도절감유한원법적계산치접근；불고필점취력적직선활동법편보수，고필점취력적직선활동법편위험；이간화Bishop법위삼조표준，편차불초과20％위가접수범위，칙지유재점취력불초과1.0～1.5 kPa시，재능안직선활동법계산변파은정계수．
In order to analyze the reasonable cohesion range of slope stability factor calculated using linear sliding method,different internal friction angles(20°—40°)and cohesion(≤10 kPa)of 60 slopes are calculated using linear sliding method,simplified Bishop method and strength reduction finite element method. The results show that,simplified Bishop method and the strength reduction finite element method are close to the stability factors;linear sliding method is conservative as cohesion is not considered,while linear sliding method is partial to risk as cohesion is considered. Only when the cohesion is not more than 1.0—1.5 kPa can use linear sliding meth-od to calculate the stability factor if taking simplified Bishop method as the reference standard and no more than 20% deviation is acceptable.