金川Ⅲ矿区岩体分类及其力学特性参数预测

本文针对金川Ⅲ矿区岩体质量及参数,并在11个钻孔数据资料的基础上,采用数学统计和数值模型来分别分析矿区岩体质量和力学参数的特征。对11个钻孔的资料进行详细的统计分析,进行每一个钻孔不同深度的岩体节理裂隙统计和岩体分类评价,并由此获得了建立矿块力学参数模型的数据。再建立表征整个岩体特性的三维力学模型,并揭示了矿块力学特性的分布特性和变化规律。此研究为崩落法采矿设计和数值模拟提供可靠的依据。

CLASSIFICATION OF ROCK MASS AND PREDICTION OF ROCK MECHANICAL PARAMETERS IN JINGCHUAN MINE NO.3

This paper aims at quality and parameters of rock mass in the No. 3 zone of Jing-chuan Mines. Statistics and numerical value models are applied to analyze the characteristics of classification and mechanical parameters based on the data of eleven drillhole logs. At first, the logging data were statistically analyzed. Joint and fissures at different depths in each drillhole were then analyzed. The rock masses were classified. The data for the mechanical model were obtained. And then, the three-dimensional mechanical model was made up which could taken into account characteristics of the entile rock mass. The mechanical characteristics of the distribution and change of mine mass were described. Finally, some important conclusions were summarized. The findings in the paper can provide practice data for the design of mining and numerical simulation.