岩体基本质量和工程岩体分级

岩体分级是评价工程岩体稳定性的3种方法之一,对于长距离和大体积开挖工程尤其具有重要意义。一个完整的工程岩体分级方法应由分级因素、分级标准和工作指标3部分组成。分级因素的选择和它的权重分配是分级方法的科学性和适用性的核心。岩体基本质量是各行业、各种类型工程岩体的共性,本文提出了岩体基本质量的SID分级法,并介绍了国家标准《工程岩体分级标准》的构思和基本内容。

Basic Quality and Engineering Classification of Rock Mass

The engineering classification of rock masses is one of three opproaches for evaluating stability of rock masses. This approach is most suitable for evaluating excavation of longer distance and largervolume. A perfect method of classification of rock mass must consist of three parts: factor of classification, standard of classification and work index, The selection of the factor of classification and weighting for each factor will be the nucleus of suitability and reasonableness of the method. The basic quality of rock masses is the commonness of all kinds of rock engineering and rock masses. In this paper a SID classification method of basic quality of rock masses is proposed and the national standard for engineering classification of rock masses is reported.