| 小湾水电站高陡边坡开挖爆破试验 |
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| 引用本文： | 刘美山,余强,张正宇,赵根.小湾水电站高陡边坡开挖爆破试验[J].工程爆破,2004,10(3):68-71. |
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| 作者姓名： | 刘美山 余强 张正宇 赵根 |
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| 作者单位： | 1. 中国科学技术大学,合肥230027;长江科学院,武汉,430010
2. 长江科学院,武汉,430010 |
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| 摘 要： | 小湾水电站开挖区地形、地质构造复杂,边坡高而陡。深孔大区爆破规模大,可能会影响边坡的安全,需要通过试验确定合理的开挖爆破方案和爆破参数。试验结果表明,采用垂直于边坡方向上的分区爆破方案,可以彻底消除爆碴压死现象。在全面分析试验结果的基础上,推荐了能确保高陡边坡安全的爆破参数以及爆破震动控制标准。
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| 关 键 词： | 岩石开挖 深孔爆破 边坡稳定 爆破试验 |
| 文章编号： | 1006-7051(2004)03-0068-04 |
| 修稿时间： | 2003年3月15日 |
BLASTING TESTS FOR EXCAVATION OF HIGH AND STEEP SLOPES AT XIAOWAN HYDROPOWER STATION |
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| LIU,Mei-shan.BLASTING TESTS FOR EXCAVATION OF HIGH AND STEEP SLOPES AT XIAOWAN HYDROPOWER STATION[J].Engineering Blasting,2004,10(3):68-71. |
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| Authors: | LIU Mei-shan |
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| Affiliation: | LIU Mei-shan~ |
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| Abstract: | There are varied topography and geologic structures and excavated slopes are high and steep at (Xiaowan) Hydropower Station.Because large-scale deep-hole blasting has a potential influence on the safety of high and steep slopes,the practical tests have to be conducted to determine a reasonable excavation scheme and blasting parameters.The test results show that the phenomena of broken-rock dead-press can be completely eliminated when the zonial blasting scheme is used.On the basis of a full analysis on the results of blasting tests,the blasting parameters and blasting vibration criterion are recommended to ensure the safety of the high and steep slopes. |
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| Keywords: | Rock excavation Deep-hole blasting Slope stability Blasting tests |
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