Large scale Single Hole Blast (SHB) testing is used to characterize blasting behavior in a cost-effective manner. SHB testing provides the means to assess the effect of blasting specifications (e.g. burden dimension, explosive used, borehole diameter) on rock cratering and blast efficiency. The observed behavior depends significantly on the testing procedure and measurements recorded. Crater characteristics are commonly described by the displaced volume of rock and breakout shape. Analysis of SHB test results relies on reproducible measurements.

This paper proposes a method for analysis of horizontal SHB tests using data collected via terrestrial laser scanning (TLS) surveys. The procedural algorithms, point cloud manipulations, and analysis facilitate systematic SHB testing, including the use of a reference axis aligned with the blasthole orientation. The definition of crater extents, absolute burden measurements, methods for crater slicing, and filtering are developed to maintain consistency with the plane strain assumption. Crater partitioning protocols are elaborated to enhanced details of captured data. A detailed workflow of the analysis is provided with examples from compiled field testing. The conventional SHB measurement approach for crater breakout angle is refined to account for superficial surface roughness, and to capture the full crater shape. Data captured for the craters is represented along the blasthole length to capture the plane-strain component of single blasthole cratering. Comprehensive results from full scale field experiments are presented in a companion paper.

大型单孔爆破（SHB）测试用于以经济有效的方式表征爆破行为。SHB测试提供了一种评估爆破规范（例如，装料尺寸，使用的炸药，井眼直径）对岩坑和爆破效率的影响的方法。观察到的行为在很大程度上取决于测试程序和记录的测量值。陨石坑的特征通常用岩石的位移量和崩落形状来描述。SHB测试结果的分析依赖于可重复的测量。

本文提出了一种使用通过地面激光扫描（TLS）调查收集的数据来分析水平SHB测试的方法。程序算法，点云操作和分析有助于系统地进行SHB测试，包括使用与炮眼方向对准的参考轴。火山口范围的定义，绝对载荷测量，火山口切片的方法以及过滤的目的是为了保持与平面应变假设的一致性。详细介绍了Crater分区协议，以增强捕获数据的细节。分析的详细工作流程提供了已编译现场测试的示例。改进了传统的SHB测量方法，以解决火山口破裂角，以解决表面粗糙度，并捕获完整的火山口形状。沿爆破孔长度表示的陷坑捕获数据，以捕获单个爆破陷坑的平面应变分量。随附论文中提供了来自大规模现场实验的综合结果。