建筑边坡岩体分类及其应用合理性研究

摘要

In the current classification of rock masses for the building slope engineering,the slope controlled by the outward inclined and weak discontinuity structural plane and one with destruction form of topple are foreclosed and integrity of the rock mass,bond and attitude of the discontinuity structural plane,rock hardness and groundwater abundance are classification factors.The questions for the classification and its application are analyzed.Studies show that classification law,classified object and classification factors for the classification are unreasonable,that the classification has no valuable significance and that the existing universal classifications for rock mass properties and single factor classification dedicated to the slope engineering are sufficient for the building slope engineering.The suggestion is put out that the general classification of rock masses dedicated to the slope engineering be abolished.%当前的建筑边坡岩体分类不含外倾软弱结构面控制的边坡和倾倒崩塌型破坏的边坡,把岩体完整程度、结构面结合程度、结构面产状、岩石坚硬程度和地下水发育程度作为分类因素。对这种分类及其应用存在的问题进行了分析。研究表明,这个分类在分类规律、分类对象、分类因素等方面均不合理,也没有实际意义,已有的关于岩体性状的通用分类和专用于边坡的单因素分类对于边坡工程已经够用。提出了取消专用于边坡的岩体综合分类的建议。