Modeling Rock Fracture in Closely Spaced Perimeter Blasting
IF 0.7
4区 工程技术
Q4 MINING & MINERAL PROCESSING
引用次数: 0
Abstract
The article presents the design model and results for the main crack development in closely spaced blasting in brittle rocks. The 3D modeling is described as case-study of crack formation in granite in perimeter blasting of ammonite charges at different spacing and filling of blastholes. The shapes and sizes are determined for the main cracks generated by blasting of single charge and three close-spaced charges. From the modeling results obtained for a specific charge, the method is proposed to determine efficient spacing of blastholes in perimeter blasting to ensure the maximal area of the created crack.
近距离周边爆破中的岩石断裂建模
摘要 本文介绍了脆性岩石近间距爆破中主裂缝发展的设计模型和结果。三维建模以花岗岩中不同间距氨石装药周向爆破和爆破孔填充时裂缝形成的案例研究为基础。确定了单个装药和三个间距较近的装药爆破产生的主要裂缝的形状和尺寸。根据特定装药的建模结果，提出了在周边爆破中确定有效爆破孔间距的方法，以确保产生的裂缝面积最大。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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来源期刊
Journal of Mining Science
工程技术-矿业与矿物加工
CiteScore
1.70
自引率
25.00%
发文量
19
审稿时长
24 months
期刊介绍：
The Journal reflects the current trends of development in fundamental and applied mining sciences. It publishes original articles on geomechanics and geoinformation science, investigation of relationships between global geodynamic processes and man-induced disasters, physical and mathematical modeling of rheological and wave processes in multiphase structural geological media, rock failure, analysis and synthesis of mechanisms, automatic machines, and robots, science of mining machines, creation of resource-saving and ecologically safe technologies of mineral mining, mine aerology and mine thermal physics, coal seam degassing, mechanisms for origination of spontaneous fires and methods for their extinction, mineral dressing, and bowel exploitation.
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