host rock types

Rock mechanics models have been established for different types of rock structure to offer a reliable mechanical basis for the analog analysis of host rock stability while mining in a broad area.

采用围岩分类专家系统中的不确定性推理处理方法，以工程地质学家谷德振提出的岩体结构划分标准为基础，对金川二矿区岩（矿）体用模糊数学中择近原则的方法进行模糊综合判别。

Rock mechanics model has been established for different types of rock structure to offer a reliable basis for a comparative analysis of host rock stability while mining in a broad area.

建立了各种结构类型岩组的岩体力学模型。为大面积采矿的围岩稳定性模拟分析提供了可靠的依据。

The relationships between VMS types, source of metal, host rock, volcanic rock types and tectonic setting have been studied in this paper.

研究了北祁连山造山带火山成因块状硫化物矿床（VMS）类型、金属来源与容矿围岩、火山岩类型及其构造环境的关系。