This results presented in this paper follow the basic principles and methodology developed for horizontal Single Hole Blast (SHB) testing using terrestrial laser scanning (TLS), introduced in Part 1, and shows specific SHB test applications as a mean to investigate rock blasting behavior. Part 1 introduced a detailed procedure for consistent and systematic SHB testing to provide the means for reproducible and comparable data collection and characterization. The concept of crater breakout angle was expanded to account for the observed non linear shape, based on measurements made at small increments along the blasthole to capture variability of the overall geometry.

This paper describes SHB testing campaigns conducted at two underground salt mines. Traditional reporting parameters (e.g. breakout angle, crater area) are presented in an enhanced approach by capturing their variation along the blasthole, and with respect to measured burden dimensions. A new crater model is proposed to better capture and represent the observed crater shape, and avoid the simplification of best-fitting triangular crater shapes. Results from the field campaigns are presented in details using LiDAR point clouds and SHB characteristic plots of the crater geometry. The crater model is calibrated from the test results to obtain site-specific burden-dependent trends of the crater shape. Two methods are then proposed for implementing SHB test results into blast pattern designs using the proposed crater model.

本文介绍的结果遵循第1部分介绍的使用地面激光扫描（TLS）为水平单孔爆破（SHB）测试开发的基本原理和方法，并显示了特定的SHB测试应用程序作为调查爆破行为的手段。第1部分介绍了用于进行一致且系统的SHB测试的详细程序，以提供可再现和可比较的数据收集和表征的方法。基于沿爆破孔以较小增量进行的测量以捕获总体几何形状的可变性，扩大了弹坑爆发角的概念以解决观察到的非线性形状。

本文介绍了在两个地下盐矿进行的SHB测试活动。传统的报告参数（例如，掘进角，陨石坑面积）以增强的方式呈现，方法是捕获沿爆炸孔并相对于测量的装料尺寸的变化。提出了一种新的陨石坑模型，以更好地捕获和表示观察到的陨石坑形状，并避免简化最适合的三角形陨石坑形状。使用LiDAR点云和火山口几何形状的SHB特征图详细介绍了野战活动的结果。从测试结果中对陨石坑模型进行校准，以获取特定于地点的与陨石坑形状有关的，与负荷有关的趋势。然后，提出了两种方法，用于使用提出的火山口模型将SHB测试结果实施到爆炸模式设计中。