| 线性聚能切割器的应用研究 |
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| 引用本文： | 罗勇,沈兆武,崔晓荣. 线性聚能切割器的应用研究[J]. 含能材料, 2006, 14(3): 236-240 |
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| 作者姓名： | 罗勇 沈兆武 崔晓荣 |
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| 作者单位： | 广东宏大爆破工程有限公司,广东,广州,510055;中国科学技术大学力学和机械工程系,安徽,合肥,230027;中国科学技术大学力学和机械工程系,安徽,合肥,230027 |
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| 摘 要： | 为精确控制岩石定向断裂爆破中断裂面的发展,根据爆炸力学、岩石断裂力学理论,对线性聚能切割器应用于岩石定向断裂爆破时裂纹的产生及扩展进行了研究,同时对线性聚能切割器进行了设计,并在实验室进行了验证试验。结果表明由聚能射流形成的切缝有明显的定向作用,使爆生气体的能量沿预定方向集中,裂纹的定向断裂控制效果良好。利用自行设计的线性聚能切割器,在大理石采石场进行了现场试验,结果表明定向断裂爆破效果显著,岩石断裂面平整,凹凸量不超过55 mm,眼痕率高达100%。
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| 关 键 词： | 爆炸力学 断裂力学 定向断裂爆破 聚能切割器 |
| 文章编号： | 1006-9941（2006）03-0236-05 |
| 收稿时间： | 2005-11-25 |
| 修稿时间： | 2006-03-31 |
Application Study on Blasting with Linear Cumulative Cutting Charge in Rock |
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| LUO Yong,SHEN Zhao-wu,CUI Xiao-rong. Application Study on Blasting with Linear Cumulative Cutting Charge in Rock[J]. Chinese Journal of Energetic Materials, 2006, 14(3): 236-240 |
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| Authors: | LUO Yong SHEN Zhao-wu CUI Xiao-rong |
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| Affiliation: | 1. Guangdong Hongda Blasting Engineering Co. , Guangzhou 510055, China; 2. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | According to explosion mechanics and fracture mechanics,the initiation mechanism of the crack and its expansion of orientation fracture blasting were studied,the mechanism of crack initiation and its expansion of orientation fracture blasting by linear cumulative cutting charge in rock were studied,then the linear cumulative cutting charge was designed and tested in laboratory and field.The directional expansion of crack is satisfactory from the experiment and the result of field test is very good,the ruggedness fracture plane is less than 55 mm and the rates of half-hole marks are 100%. |
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| Keywords: | explosion mechanics fracture mechanics orientation fracture blasting cumulative cutting charge |
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