滑坡的稳定性分析一直是滑坡工程研究领域的核心问题。本文以典型风化堆积体滑坡黄陵二号煤矿滑坡为依托，详细的阐述了滑坡的基本特征、影响因素、成因机制及应力分布特征。采用极限平衡法中的Fellenius法、Janbu法和传递系数法进行了滑坡稳定性分析计算，分析了三种方法在风化堆积体滑坡稳定性分析中的差异性和适用情况。结合稳定性分析结果给出了相应的滑坡支护方案，介绍了相关的施工工艺，并对滑坡监测结果做了分析。通过上述全面的分析研究，得出的主要成果及认识有： （l）风化堆积体滑坡的形成和发展的主要影响因素有滑坡的地层结构、地质构造、地形地貌、水的作用、人类活动及植被作用。 （2）通过对滑坡的成因机制和应力特征分析可知，滑坡的形成大致经历了三个变形阶段：自重压密蠕变阶段、滑面逐渐形阶段和近期变形破坏阶段，且每个阶段都有其变形破坏特点。在坡体浅表层应力量值处于低值分布状态，坡脚和坡体的不同部位产生一定程度的应力集中和分异现象。 （4）通过对极限平衡法中Fellenius法、Janbu法和传递系数法三种方法的对比研究可知， Fellenius法适用于均质土坡的稳定性分析，复合滑动面型滑坡采用Janbu法进行稳定性分析更为符合滑坡实际情况，滑动面为折线的滑坡可以采用传递系数法进行计算。在风化堆积体类边滑坡稳定性分析计算时，可以将采用传递系数法计算出的结果作为稳定性评价的依据。 （5）本文从定性和定量两个方面对滑坡稳定性作了分析评价，认为在天然工况下滑坡处于欠稳定～基本稳定状态。在暴雨工况下，滑坡将处于不稳定状态，若不加支护，将不能满足建筑边坡整体稳定性要求。 （6）滑坡支护技术研究中采用支挡结构和结合坡体内外疏排水相结合的方式进行滑坡防治，微型（抗滑）桩和锚索肋柱挡墙的支挡工程措施起到了控制滑坡变形的作用，截排水系统工程起到了有效地疏排水作用，抑制了水对坡体稳定性的不利影响。监测结果表明，滑坡已经处于稳定状态，治理效果较好。

Landslide stability analysis is the core issue of the landslide engineering research field. This article relies on the landslide of Huangling No.2 colliery which is the typical weathering accumulative slide, expatiates on its basic characters, influencing factors, formation mechanism and the stress distribution characteristics. According to Fellenius, Janbu and Carry-over factor of limit equilibrium methods which are used to analyze and calculate the landslide stability, we have analyzed three measures’ differences and application conditions in the weathering accumulative landslide stability analysis. The corresponding slide supporting scheme is suggested combining the stability analysis results. Also the correlative construction technics have been introduced, and the slide monitoring results have been analyzed. According to the above comprehensive analytic study, the main achievements are as follows: (1) The main influencing factors of the weathering accumulative landslide’s forming and development are its stratal configuration, geologic structure, landform, water effects, human activity and vegetation effects. (2) According to the analysis of slide’s formation mechanism and the stress distribution characteristics, it can be seen that there are three transmutation stages during the forming of the slide: the self weight consolidation creep stage, sliding surface gradually shaped stage and recent deformation stage, and every stage has its deformation damage characteristics. The slope shallow surface layer’s stress value is in the low value distribution. The toe of side slope and the slope’s different parts have a certain extent of stress concentration and differentiation. (3) According to contrastive study of Fellenius, Janbu and Carry-over factor of limit equilibrium methods, it can be known that Fellenius is applied to the homogeneous soil slope’s stability analysis. And for the composite sliding surface of landslide, Janbu is much more in line with the actual situation of landslide. Carry-over factor of limit equilibrium method can be used to slide whose sliding surface is polygonal line. In the stability analysis calculation of weathering accumulative landslide, the calculated results from the carry-over factor method can be the basis for stability evaluation. (4) This article has made the analysis and the evaluation for the landslide stability from qualitative and quantitative aspects. In natural condition, the slide can be in the state of under stability ~ basic stability. And in rainstorm condition, the slide can be in the under stable state, if there is no shoring, the needs of construction slope’s overall stability cannot be met. (5) The combinative manner of retaining structure and drainage combining the slope inside and outside during the research of slope shoring methods have been used to landslide preventive treatment. The shoring methods of miniature (anti slide) pile and anchor cable ribbed wall have the effect of controlling the slide’s deformation, drainage system project has the effective function of drainage, and restrained water’s adverse impact towards the slope stability. It is indicated from the monitoring results that the landslide has already been in the stable state, and the governance has had the good results.