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| 基于有效保护围岩的定向断裂爆破参数研究 | |
| 引用本文： | 戴俊. 基于有效保护围岩的定向断裂爆破参数研究[J]. 辽宁工程技术大学学报(自然科学版), 2005, 24(3): 369-371 |
| 作者姓名： | 戴俊 |
| 作者单位： | 西安科技大学,建筑工程学院,陕西,西安,710054;解放军理工大学,工程兵工程学院,江苏,南京,210007 |
| 基金项目： | 陕西省教育厅专项科研计划基金资助项目(02JK081，04JK221) |
| 摘 要： | 对岩石周边爆破进行深入研究。指出了光面爆破不可避免造成围岩损伤的不足，提出了采用定向断裂爆破技术是降低围岩爆破损伤的有效方法：进而，依据现有的定向断裂爆破原理，导出了定向断裂爆破的预裂纹长度、炮孔装药量与炮孔间距的计算式：最后，结合工程算例对这些爆破参数之间的关系作了分析。表明：计算结果与所得结论以工程实际相符，有参考价值。 |
| 关 键 词： | 围岩 定向断裂爆破 爆破参数 |
| 文章编号： | 1008-0562(2005)03-0369-03 |
| 修稿时间： | 2003-07-23 |
Study on parameters of directional-split blasting based on protecting effectively remaining rock |
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| DAI Jun. Study on parameters of directional-split blasting based on protecting effectively remaining rock[J]. Journal of Liaoning Technical University (Natural Science Edition), 2005, 24(3): 369-371 | |
| Authors: | DAI Jun |
| Abstract: | The contour blasting technique is deeply studied in the paper. The shortcoming of conventional smooth blasting in damaging inevitably to remaining rock is pointed out, and it is presented that the application of the directional - split blasting technique is an effective way to minimize damage to remaining rock by blasting. And then, the calculating formulae for pre-split length charge per one hole and spacing are presented according to the existing principle of parameters of directional - split blasting. Finally, the relations between pre-split length, charge per one hole and spacing are also analyzed by means of calculating an engineering example. It is indicated that the results from the formulae and summing-up are in accord with practice and worthy to be consulted. |
| Keywords: | remaining rock directional-split blasting blasting parameter |
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