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岩体分级是根据隧道、边坡和大坝的稳定性调查研究的需要发展起来的,至今还没有一个专门适应岩体崩落性分级的方法。本文作者提出了一个岩体崩落性分级的方法。这个方法密切结合了阶段自然崩落法的实践,考虑了影响矿体崩落性的6个主要地质因素,即NRQD(Normal Rock Quality Designation)指标、裂隙频率、节理特性、原岩应力、岩石单轴抗压强度和地下水。该方法具有简洁和使用方便的特点。本文章给出了应用的实例。
Rock mass classification has been developed based on the investigation of the stability of tunnels, slopes and dams. Up to now, there has not been a method specially adapted to the classification of rock mass collapse. The authors propose a method for rock mass collapse. This method closely integrates the practice of the natural caving method and considers the six main geological factors that affect the ore body collapse, that is, the NRQD (Normal Rock Quality Designation) index, the fracture frequency, the joint characteristics, the original rock stress, the rock uniaxial resistance Compressive strength and groundwater. The method is simple and easy to use features. This article gives an example of the application.