| 层状岩体爆破抛掷方向对大块率的影响 |
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| 作者单位： | ;1.武汉理工大学;2.广东宏大爆破股份有限公司 |
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| 摘 要： | 层状岩体的爆破效果往往较差,易引起较高大块率。通过理论分析层状岩体软弱结构面,并结合单个爆破漏斗试验可知,结构面间粘结力、应力波振幅和入射角度是影响爆破效果的主要原因,以此为理论基础并总结前人的科研成果,建立抛掷方向和岩层走向的夹角θ与大块率的关系。
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| 关 键 词： | 层状岩体 抛掷方向 大块率 |
THE EFFECT OF LAYERED ROCK MASS BLASTING THROWING DIRECTION ON BOULDER YIELD |
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| Affiliation: | ,Wuhan University of Technology,Guangdong Hongda Blasting Co.,Ltd. |
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| Abstract: | The blasting in layered rock mass causes a lot of chunks and the blasting effect is often poor.Based on a single blasting funnel test,the main reasons of poor blasting effect were adhesion between the structural plane,stress wave amplitudes and incident angles through the theoretical analysis of weak structural plane in layered rock mass.The influence relation between angle of throwing direction with the strike direction of strata and boulder rate was established based on theoretical foundation and previous research results. |
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| Keywords: | Layered rock mass Throwing direction Boulder rate |
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