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按工程的性质对岩体进行比较科学、合理的分类,有助于明确勘探要求和简化设计,并能加速规划、可行性研究和初步没计,因而是一项很重要的工作。本文拟简单介绍美国地下工程岩体的几种分类方法。
It is a very important task to make a comparatively scientific and reasonable classification of rock mass according to the nature of the project so as to help to clarify the exploration requirements and simplify the design and speed up the planning, feasibility study and preliminary calculation. This article is intended to briefly introduce several classification methods for underground rock mass in the United States.