中文摘要：

辐射条分法较其他条分法在条分划分上存在一定优势，但目前仅适用于圆弧滑动面型式，且在安全系数计算方法上也不如其他条分法全面。本文提出一种适用于任意形状滑动面的辐射条分划分模式，以辐射土条为单元对其进行受力分析，并根据以往研究成果将条间剪切力考虑为2种方向类型，然后建立严格的力和力矩平衡方程式，进而推导出一般条间力假设条件下的安全系数计算公式。当使用Sarma法和M-P法条问力假设条件时研究其在辐射条分法中的适用性；为拓宽M-P法在辐射条分法下的使用范围，通过分析辐射条分与竖直条分条问力的关系，基于M-P法条间力关系，提出2种新的条间力假设条件。在特定滑动面（包括圆弧和任意曲线）和不同条分数时对各方法的可行性进行研究，并经过算例对比分析，可知：（1）当条间剪切力方向为方向一时，Sarma法和3种M-P法条间力假设条件都能较好地应用于边坡稳定性辐射条分法；（2）2种基于M-P法下的新的条间力假设条件较传统M-P法条间力假设条件对计算结果的收敛性进行了改进；（3）任意曲线滑动面较圆弧滑动面在辐射条分法中更具有适用性。

英文摘要：

Radiation slices method has more advantage than other slice methods in dividing slices. But currently the radiation slices method applies only to the type of circular sliding surface. The method using radiation slices to calculate factor of safety （FOS） is not as completion as those of other slices methods. This paper presents a radia- tion slices-division mode for arbitrary curved slip surface. Radiation soil slice is taken as a uni. Direction of the in- ter-shear force uses two different types of the directions based on the previous results. Then the strict balance equa- tion of force and torque is established. The formula of FOS for the general assumption of inter-force is deduced. When using the inter-force assumptions of Sarma and M-P method, their applicability to the radiation slices method is studied. At the same time, in order to broaden the use of M-P method in the radiation slices method, two new inter-force assumptions are put forward based on the inter-force relationship of M-P method by analyzing the inter -force relationship between radiation slice and vertical slice. When the sliding surface （including circular and arbi- trary curve） is fixed and the number of slices is different, this article researches the feasibility of above-mentionedmethods and through comparing and analyzing some examples. The results show the follows. （1） When the direc- tion of inter-shear force is the first case of direction, the inter-force assumptions of Sarma method and the three kinds of M-P methods could be all applied to the radiation slice method for analyzing slope stability. （2） The two new kinds of inter-force assumptions based on M-P method have better improvement in convergence of calculated results than the traditional inter-force assumption of M-P method. （3） In the radiation slice method, arbitrary sliding has more applicability than the circular sliding surface.