Construction Technology of 5#Rescue Hole in the Collapse Accident in Pingyi Gypsum Mine and the Drilling Tool Configuration
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摘要: 阐述了2015年12月25日山东省临沂市平邑县保太镇玉荣商贸有限公司石膏矿坍塌事故救援中成功救出4名被困矿工的5号救生孔的施工过程。详细介绍了在抢险救援中国家矿山应急救援淮南队采用德国宝峨公司RB-T90型钻机配套河北省地矿局国土资源勘查中心石家庄探矿机械厂(河北石探机械制造有限责任公司) SG219/152型双壁钻具空气反循环钻进施工5号大直径救生孔的整个过程,包括地层情况、钻孔设计、施工工艺、钻具配置、施工过程和施工中遇到的问题以及最终的解决方法。Abstract: The paper gives an account of the construction process of 5#rescue hole in the collapse accident in Pingyi gyp-sum mine on Dec.25, 2015.The application situation of RB-T90 drilling rig (made by Bauer of Germany) by Huainan rescue team of national mine emergency rescue organization matching with SG219/152 double-wall drill tools ( made by Shi-jiazhuang Mineral Exploration Machinery Factory of the Land and Resources Exploration Center of Hebei Provincial Bureau of Geology and Mineral Resources) is introduced in detail, the formation conditions, borehole design, drilling tool configu-ration, construction process, difficulties encountered and the final solution are also stated.
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