| 钻孔水力采矿射流喷嘴初步试验研究 |
| 投稿时间：2003-02-08 修订日期：2003-02-08 点此下载全文 |
| 引用本文：杨倩云,乌效鸣,李云波,等.钻孔水力采矿射流喷嘴初步试验研究[J].钻探工程,2003,30(6):31-34.YANG Qian-yun,WU Xiao-ming,LI Yun-bo,et al. Tentative Research on Efflux Nozzle Used for Boring Hydraulic Mining[J]. Drilling Engineering, 2003,30(6):31-34. |
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| 基金项目:教育部高等学校博士学科点专项科研基金(2000049119) |
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| 中文摘要:围绕钻孔水力采矿的关键元素——喷嘴，在进行小直径喷嘴试验的基础上，分析研究试验数据，提出喷嘴的设计思路，完成喷嘴的基本选型。针对不同岩层的特性，提出不同的水力采矿方案。研究处在钻孔底高压淹没条件下，水射流的碎岩机理和碎岩能力。 |
| 中文关键词:钻孔水力采矿 喷嘴 射流 流道形状 长径比 淹没 碎岩机理 |
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| Tentative Research on Efflux Nozzle Used for Boring Hydraulic Mining |
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| Abstract:Focusing on design of nozzle—the crucial element of boring hydraulic mining, the test data were analyzed and researched based on the experiments of small diameter nozzles. The nozzle design conception was brought forward. The patterns and types of nozzle were selected. Different alternatives for boring hydraulic mining were proposed on the characteristics of various formations. The rock broken mechanism and broken ability of water jet under the high pressure submerged down the hole were studied. |
| keywords:boring hydraulic mining nozzle jet-flow pattern of flowing passageway ratio of length to diameter submerge rock broken mechanism |
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