| 程家沟-沙沟银多金属矿区坑道钻探工艺 |
| 投稿时间：2016-06-17 修订日期：2017-03-29 点此下载全文 |
| 引用本文：时志兴,杨春,翟东旭.程家沟-沙沟银多金属矿区坑道钻探工艺[J].钻探工程,2017,44(5):39-43.SHI Zhi-xing,YANG Chun,ZHAI Dong-xu. Tunnel Drilling Technology of Chengjiagou-Shagou Silver Polymetallic Deposit[J]. Drilling Engineering, 2017,44(5):39-43. |
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| 基金项目:2010年度河南省地质勘查基金（周转金）项目 |
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| 中文摘要:坑道内孔深大于300 m大顶角钻孔施工，施工难度明显加大，通过在坑道内完善施工硐室设计，确保钻孔顺利施工及钻探施工安全。从设备选择与安装、钻孔结构、钻进参数、冲洗液的配置、常见事故及其预防等方面的完善，完成了顶角56°、设计孔深593 m钻孔的施工，总结出了坑道内大顶角钻孔施工工艺。 |
| 中文关键词:坑道钻探 硐室设计 大顶角钻孔 钻探事故 |
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| Tunnel Drilling Technology of Chengjiagou-Shagou Silver Polymetallic Deposit |
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| Abstract:For the large angle drilling construction with hole depth greater than 300m, the construction difficulty increases obviously. By improving construction chamber design in the tunnel, the smooth drilling construction and the safety are ensured. Based on the improvement of equipment selection and installation, hole structure, drilling parameters, flushing medium configuration, common accidents and the prevention, the construction technology of large apex angle drilling in tunnel is summarized, the drilling construction of borehole with apex angle 56 degree and designed depth 593m has been completed. |
| keywords:tunnel drilling chamber design large apex angle drilling drilling accident |
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