滑坡推力的数值计算方法研究

Study on Numerical Calculation Method of the Thrust of the Landslide

滑坡推力计算是滑坡治理工程中必不可少的步骤,现行滑坡推力计算方法主要采用传递系数法、刚体极限平衡分析方法等.传递系数法因其概念清晰,计算简便而被广泛使用,但是传递系数法不能正确计算滑面强度相同但是滑体强度不同的滑坡推力,为了较真实的反映滑坡推力,本文提出用快速拉格朗日差分法计算不同滑体参数下滑坡的推力,并以实例加以验证说明,证明其在滑坡整治中的可行性,以促进其在工程上的应用.

The thrust calculation of the landslide is necessary in the landslide treatment,the current calculation methods of landslide thrust may be described as the coefficient transfer method,rigid body limit equilibrium method and so on.The coefficient transfer method is widely used in virtue of its clear concept and convenient computation,but this method cannot get the accurate thrusts when the strength of different sliding surface is the same but the strength of sliding mass change,in order to reflect the landslide thrust more realistic.In this article,fast Lagrangian analysis of continua will be used to calculate the landslide thrust when the strength of sliding mass change,the writer will prove the correction of the fast Lagrangian analysis of continua method in thrust calculation by analysising an example,and wish it will be be applied in more fields of engineering.