| 水介质不耦合装药爆破岩石破坏范围的研究和应用 |
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| 引用本文： | 宗琦,田立,汪海波. 水介质不耦合装药爆破岩石破坏范围的研究和应用[J]. 爆破, 2012, 29(2): 42-46 |
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| 作者姓名： | 宗琦 田立 汪海波 |
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| 作者单位： | 安徽理工大学土木建筑学院,淮南,232001;安徽理工大学土木建筑学院,淮南,232001;安徽理工大学土木建筑学院,淮南,232001 |
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| 摘 要： | 根据水中爆炸理论和爆炸应力波理论,探讨了水介质不耦合装药爆破孔壁初始冲击压力和岩石内的动态应力分布,并以强度理论求算出了炮孔周围岩石中粉碎圈和裂隙圈的范围。在某立井掘进爆破中依据炮孔周围裂隙圈半径理论计算的结果进行掏槽炮孔布置参数设计,从工程实践上进一步验证了炮孔水介质不耦合装药爆破时岩石破坏作用范围理论分析的正确性。
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| 关 键 词： | 水不耦合装药 爆炸应力波 粉碎圈 裂隙圈 |
Study and Application on Rock Damage Range by Blasting with Water-decoupled Charge |
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| ZONG Qi , TIAN Li , WANG Hai-bo. Study and Application on Rock Damage Range by Blasting with Water-decoupled Charge[J]. Blasting, 2012, 29(2): 42-46 |
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| Authors: | ZONG Qi TIAN Li WANG Hai-bo |
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| Affiliation: | (School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China) |
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| Abstract: | Based on the theories of underwater explosion and explosion stress wave,the initial shock pressure on hole-wall and dynamic stress in rock of water-decoupled charge blasting were discussed.The ranges of pulverizing area and crack area in rock near the hole were calculated by strength theory.In a vertical shaft excavation blasting,the cut hole layout parameters was designed according to the theoretical calculation results of crack area radius.The engineering example verified the rock damage range by water-decoupled charge blasting. |
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| Keywords: | water-decouple charge explosion stress wave pulverizing area crack area |
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