Development of Rock Excavation Method Assisted by High Pressure Water Jet

高压水射流辅助岩石开挖方法的研制

基本信息

  • 批准号:
    61850112
  • 负责人:
  • 金额:
    $ 3.97万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research
  • 财政年份:
    1986
  • 资助国家:
    日本
  • 起止时间:
    1986 至 1987
  • 项目状态:
    已结题

项目摘要

A laboratory investigation was made of the effests of high pressure water jets on the cutting force of point asstack bit. About 400 cuts using Sanjome-andesite were carried out at different water pressures and cutting speeds to determine the reduction of cutting forces on the bit.The cutting forces shoewed continuous change with wear of bit. The greatest reduction in cugging force were with severely worn bits; the drag force was reduced about 25% and the normal force about 40% at 100MP water pressure. The method was less effective in case of sharp bit.Together with the reduction of cutting force, the water jet was found gto be effective to prolong the bit life; the bit life becoms about 3 times. An important benefit may be the cooling and lubricationg action of the water jet.
通过室内试验,研究了高压水射流对尖齿钻头切削力的影响。在不同的水压和切削速度下,对三城目安山岩进行了约400次切削试验,以确定钻头切削力的减小情况,切削力随钻头磨损而连续变化。咬合力的最大减少是严重磨损的钻头;在100 MP水压下,拖曳力减少约25%,法向力减少约40%。结果表明,在切削力降低的同时,水射流能有效地延长钻头寿命,钻头寿命提高了3倍左右。一个重要的好处可能是水射流的冷却和润滑作用。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Yuichi Nishimatsu: "Errect of Water Jet with Nozzle behind the bit - Waterjet-assisted Rock Cutting (1st Report)" Proceesing of Spring Meeting, MMIJ. 307-308 (1987)
Yuichi Nishimatsu:“钻头后面有喷嘴的水射流的安装 - 水射流辅助岩石切割(第 1 次报告)”MMIJ 春季会议论文集。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
西松 裕一: 日本鉱業会研究・業績発表講演会講演要旨集. 307-308 (1987)
Yuichi Nishimatsu:日本矿业协会研究与成就演讲摘要集 307-308 (1987)。
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    0
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NISHIMATSU Yuichi其他文献

NISHIMATSU Yuichi的其他文献

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{{ truncateString('NISHIMATSU Yuichi', 18)}}的其他基金

Effect of Machine Stiffness on Cutting Performance
机器刚度对切削性能的影响
  • 批准号:
    02555132
  • 财政年份:
    1990
  • 资助金额:
    $ 3.97万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
Time dependent behaviour of Class II rocks under the confining pressure
围压下 II 类岩石的时间相关行为
  • 批准号:
    61460192
  • 财政年份:
    1986
  • 资助金额:
    $ 3.97万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

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