工程岩体分级标准 meaning in English
standard for classification of engineering rock masses
Examples
- Standard for engineering classification of rock masses
工程岩体分级标准 - Standard for classification of engineering rock masses
工程岩体分级标准 - Research shows that four factors have great influence on the formation of complex rock mass . first , rock mass subjected six times of tectonic movement during long period of geo - history , each tectonic movement produced fractures and associated joints corresponding to the orientation of maximum principal stress and deteriorated the properties of fractures formed at former period ( s ) . second , down - cutting of langcangjiang river produced unloading fractures
采用了四种岩体质量分级评价方案对研究区岩体质量进行了研究，这四种方案包括：工程岩体分级标准( gb50218 - 94 ) 、水利水电围岩工程地质分类( gb50267 ? 99 ) 、岩体rmr分类( bieniawski , 1973 ) 、岩体质量指数z分级(小湾, 1995 ) 。 - Standard for engineering classification of rock masses ( gb50218 - 94 ) , the rock engineering geological classification of code for water resources and hydropower engineering geological investigation ( gb50267 - 99 ) , rock mass rating system ( bieniawski , 1973 ) and q - system were used in the rock mass quality classification . a evaluate system relative to the rock mass mechanism of the left bank rock mass was achieved finally
采用工程岩体分级标准( gb50218 - 94 ) 、水利水电围岩工程地质分类( gb50267 - 99 ) 、岩体地质力学rmr分类及岩体质量指标q系统围岩分类，对左岸地下洞室区围岩按其基本指标作出定量化评分、分级。