【摘要】 以煤矿岩体为例 ,分析了大小规模结构面的相关性 ,提出了地下工程岩体结构面产状的统计方法 ,阐述了多组结构面并存于一岩体时迹线间距的统计与计算方法。并用这些统计参数来确定巷道危石的最大可动区域 ,选择最佳轴线方向 ,为巷道的支护设计提供了科学依据。更多还原

【Abstract】 Taking the rock mass in coal mines as example, this paper analyses the relation between major and minor discontinuities, proposes a statistical method of discontinuities in rock mass in coal mines, suggests the statistical and calculation methods of the trace spacings in the coexistence of multiple sets of discontinuities in the same rock mass, and show a way to to determine the maximum movable domains of the critical blocks in the roadway and to select the optimum axial direction using these statistical parameters. The result provides a scientific basis for support design of roadways.更多还原