结构面量测最佳测线长度的确定

测线法是野外采集结构面几何特征参数的常用方法之一。为了保证采集的结构面样本数量足够多，同时又使测量工作量最省，测线法应用时首先需要确定一个能够保证测量精度的最小测线长度--最佳测线长度。当前研究人员一般通过结构面间距的概率特征确定最佳测线长度，研究成果表明，仅依据间距的概率特征确定的最佳测线长度往往偏小，在确定最佳测线长度时还需要考虑迹长等其它结构面几何参数的概率特征。在此基础上提出了一种确定最佳测线长度的修正方法，并结合两个具体的算例说明了修正方法的应用情况。

Determination of Optimum Scan Line Length in Rock Joints Survey

The scan line method is one of the most commonly used methods in rock joints survey.To ensure the quantity of collected joint samples enough,and at the same time,to save surveying workload,the optimum scan line length should be determined first of all.For the moment,the optimum scan line length is usually determined by statistical properties of joint space,while,the authors research result indicates that the optimum scan line length does not only rely on statistical properties of joint space,but also on sta...