| 超大直径厚表土钻井法施工关键问题的研究 |
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| 引用本文： | 周益林.超大直径厚表土钻井法施工关键问题的研究[J].煤炭技术,2008,27(8). |
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| 作者姓名： | 周益林 |
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| 作者单位： | 国投新集能源股份有限公司,板集煤矿,安徽,利辛,236744 |
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| 摘 要： | 影响钻井法钻进速度的因素主要有破岩和排渣。本文主要通过国投新集板集矿副井为例,介绍了通过选择合理钻头刀盘吸浆口位置提高出浆效果,从而增加排碴能力,使钻进速度显著提高。
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| 关 键 词： | 钻进速度 洗井效果 偏心吸浆 |
Research on Key Issues on Shaft Drilling Method of Super Large Diameter and Thick Topsoil |
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| ZHOU Yi-lin.Research on Key Issues on Shaft Drilling Method of Super Large Diameter and Thick Topsoil[J].Coal Technology,2008,27(8). |
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| Authors: | ZHOU Yi-lin |
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| Abstract: | The main factors affected on the drilling speed of drilling method are rock-cutting and mud discharge.This paper,take the auxiliary shaft of Banji Coal Mine of State-run Xinji Energy Co Ltd for example introduced the improved mud drainage effectiveness by selecting the reasonable position of sucking mud entrance of drill cutter in order to increase the capacity of draining mud and raise the drilling speed significantly. |
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| Keywords: | drilling speed washing well effect eccentric sucking mud |
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