| 复杂环境烟囱爆破拆除的安全防护 |
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| 作者单位： | ;1.神华准格尔能源有限公司;2.北京矿冶研究总院 |
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| 摘 要： | 为了安全、高效地拆除砖结构烟囱,根据待拆烟囱与相邻建构筑物距离较近的情况,采用定向爆破拆除方案。将爆破切口位置布置在离地面高0.8m处,采用正梯形切口,通过精心设计和施工实现了烟囱准确定向倒塌。采取开挖减振沟、铺设缓冲垫层等措施减小振动,采用湿草垫、竹板对切口严密覆盖,防止爆破飞石的飞散。爆破未对周边建筑设施产生影响,取得了良好的效果,可为类似工程提供参考。
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| 关 键 词： | 复杂环境 烟囱 爆破拆除 定向爆破 安全防护 |
APPLICATION OF SITE MIXING AND LOADING SYSTEM FOR EXPLOSIVE TO CASTING BLAST TECHNIQUE IN LARGE OPEN PIT COAL MINE |
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| Affiliation: | ,Rizhao Pingda Blasting Engineering Co.,Ltd. |
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| Abstract: | Combining the practice of the technology of site mixing and loading system for explosive used in casting blast technique in Heidaigou open pit coal mine,this paper introduced the production technology of emulsion matrix and ANFO ground station,the structure of multi-function loading truck,and the properties of on-site mixed explosives,which were suitable for large-scale open pit mine.By analyzing the on-site blasting effects,economic and social benefits,the advantages of the technology were described.These successful experiences could be used in blasting projects in other large open pit. |
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| Keywords: | Explosive Site mixing and loading Loading truck Ground station Open pit Casting blast |
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