| 孔外延期爆破在中深孔爆破中的应用 |
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| 引用本文： | 殷宏.孔外延期爆破在中深孔爆破中的应用[J].江西有色金属,2009,23(3):21-22,41. |
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| 作者姓名： | 殷宏 |
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| 作者单位： | 铁山垅钨矿,江西,宁都,341800 |
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| 摘 要： | 在无底柱分段崩落法采矿中，受地质构造及地压的影响，易造成采准工程垮塌、中深孔变形，致使无法进行正常回采。铁山垅钨矿在进行中深孔多排集中爆破时，进行了孔外延期爆破实践，取得了良好爆破效果。
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| 关 键 词： | 孔外延期 中深孔 微差起爆 |
On the Application of Outer-hole Blast in Medium Length Hole |
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| YIN Hong.On the Application of Outer-hole Blast in Medium Length Hole[J].Jiangxi Nonferrous Metals,2009,23(3):21-22,41. |
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| Authors: | YIN Hong |
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| Affiliation: | Jiangxi Tieshanlong Tungsten Mine;Yudu 342300;Jiangxi;China |
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| Abstract: | The impacts of geological structure and ground pressure are likely to result in the collapse of preparatory project and deformation of medium length hole in block caving mining. Outer-hole delay blast has been applied in the cluster blasts Tieshanlong Tungsten Mine. |
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| Keywords: | outer-hole delay medium length hole millisecond detonating |
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