| 减少喀斯特岩层铝土矿台阶爆破根底和大块的研究 |
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| 引用本文： | 陈寿如,毛晖,张劲松,赵坤. 减少喀斯特岩层铝土矿台阶爆破根底和大块的研究[J]. 工程爆破, 2003, 9(2): 42-45 |
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| 作者姓名： | 陈寿如 毛晖 张劲松 赵坤 |
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| 作者单位： | 中南大学,长沙,410083;贵州铝厂第二铝矿,贵州清镇,551413 |
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| 摘 要： | 喀斯特岩层铝土矿的主要特点是岩溶洞、岩溶水多,裂隙发育,岩层和泥层相夹等,这些特点使露天台阶爆破中出现较多的根底和大块。试验中通过采取一系列技术措施,如空气间隔装药、合适的孔网参数、孔底起爆、增加炸药密度及改进药包包装等,取得了良好的爆破效果。文中介绍了试验方法及试验结果的分析。
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| 关 键 词： | 喀斯特岩层 台阶爆破 根底 大块 空气间隔装药 |
| 文章编号： | 1006-7051(2003)02-0042-04 |
| 修稿时间： | 2002-09-13 |
STUDY ON REDUCTION OF TOE ROCKS AND BOULDERS IN BENCH BLASTING IN THE KARST FORMATION BAUXITE |
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| CHEN Shou ru ,MAO Hui ,ZHANG Jin s ong ,ZHAO Kun. STUDY ON REDUCTION OF TOE ROCKS AND BOULDERS IN BENCH BLASTING IN THE KARST FORMATION BAUXITE[J]. Engineering Blasting, 2003, 9(2): 42-45 |
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| Authors: | CHEN Shou ru MAO Hui ZHANG Jin s ong ZHAO Kun |
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| Affiliation: | CHEN Shou ru 1,MAO Hui 1,ZHANG Jin s ong 2,ZHAO Kun 2 |
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| Abstract: | The Karst formation bauxi te is mainly characterized by more Karst cavities,a lot of Karst wate r and fissures,and interbedding of rock and clay These features resul t in more toe rocks and boulders i n bench blasting A favorable blast ing effect is gained through takin g some technical measures such as air spaced charges reasonable hole pattern pa rameters, hole bottom priming, i ncreased explosive density and imp roved charge packing The test meth ods and analysis on test results a re introduced in this paper |
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| Keywords: | Karst formation Bench bl asting Toe rock Boulder Air spaced charge |
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