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以皖南地区某强烈变形的强风化千枚质板岩边坡为例,通过对其工程地质条件的调查,结合边坡岩体结构类型和结构面组合特征,对其变形破坏特征及稳定性进行了分析和评价。研究结果表明,边坡的变形受坡内软弱岩体(挤压破碎带)控制,剪应力的集中易使坡体产生圆弧形滑动,据此定量评价边坡的稳定性,提出合理的支护方案,减小地质灾害发生的可能。
Taking a strong deformed metamorphic phyllite slope in southern Anhui Province as an example, the deformation and failure characteristics and stability of the rock mass are analyzed through the investigation of engineering geological conditions and the combination of structural type and structural plane of rock mass. Analysis and evaluation. The results show that the deformation of the slope is controlled by the weak rock mass in the slope (crushing and crushing zone), and the concentrated shear stress easily causes the slope to slide in a circular arc. Based on this, the stability of the slope is quantitatively evaluated and a reasonable branch Protection programs to reduce the possibility of geological disasters.