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 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.
各层序分别由低位体系域的下切谷充填沉积的砂岩、砂砾岩，海侵体系的灰岩、泥灰岩、泥岩、煤和高位体系域的碎屑岩和煤组成。
Each sequence is composed of incised valley sandstone of low system tract, limestone, marl, coal and mudstone of transgressive system tract and clastics and coal of high system tract.
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