论文部分内容阅读
针对边坡小概率破坏的高效模拟问题,提出采用方向模拟方法进行计算,介绍了方向模拟的基本理论和楔形体破坏功能函数的算法,编制了岩质边坡楔形体破坏概率的方向模拟的Matlab程序,分别将方向模拟结果与重要抽样模拟、子集模拟的计算结果进行了对比分析。结果表明,方向模拟与子集模拟一样适合于小概率破坏的计算,方向模拟方法在抽样次数较少的情况下就能获得较高的计算精度,与其他两种方法相比效率更高。
Aiming at the problem of high efficiency simulation of slope failure, a direction simulation method is proposed. The basic theory of direction simulation and the algorithm of wedge failure function are introduced. The direction simulation of rock slope wedge destruction probability is presented. Program, respectively, the direction of the simulation results and important sampling simulation, subsection simulation results were compared. The results show that the direction simulation is suitable for the calculation of small probability damage as the subset simulation. The direction simulation method can obtain higher calculation precision with fewer sampling times and is more efficient than the other two methods.