基于 LS-DYNA 的井下中深孔爆破地表震动强度模拟分析
기우 LS-DYNA 적정하중심공폭파지표진동강도모의분석
Simulation study on surface vibration intensity of deep hole blasting based on LS-DYNA
  • 万方数据
    黄金 황금
    GOLD JOURNAL
    2014年 11期 37-41 ,共5页

    尹丽冰%吴贤振%胡维%高祥%王亮亮

    윤려빙%오현진%호유%고상%왕량량

    爆破震动%LS-DYNA%最大段药量%总药量%模拟 爆破震動%LS-DYNA%最大段藥量%總藥量%模擬
    폭파진동%LS-DYNA%최대단약량%총약량%모의
    blasting vibration%LS-DYNA%maximum explosives of single stage%total explosives%simulation
    为了研究微差爆破最大段药量和总药量对爆破震动的影响程度，在对某铀矿井下生产爆破进行爆破震动现场测试的基础上，采用LS-DYNA有限元软件分别以最大段药量和总药量作为集中药包进行数值模拟。分析结果表明，震动强度测试值介于最大段药量和总药量数值模拟值之间，最大段药量虽是影响微差爆破震动强度的重要因素，但非决定性因素，微差爆破震动强度与总药量有密切关系；井下生产爆破地表三维震动强度值中，水平径向值相对较小。
    위료연구미차폭파최대단약량화총약량대폭파진동적영향정도，재대모유광정하생산폭파진행폭파진동현장측시적기출상，채용LS-DYNA유한원연건분별이최대단약량화총약량작위집중약포진행수치모의。분석결과표명，진동강도측시치개우최대단약량화총약량수치모의치지간，최대단약량수시영향미차폭파진동강도적중요인소，단비결정성인소，미차폭파진동강도여총약량유밀절관계；정하생산폭파지표삼유진동강도치중，수평경향치상대교소。
    To study the effect of maximum explosives of single stage and total explosives inshort delay blasting on the blasting vibration,the paper based on field investigations in one uranium mine about blasting vibration takes LS-DYNA finite element software for numerical simulation of maximum explosives of singlestage and total explosives re-spectively.The results show that vibration intensity ranges between the values of the two simulations;very important in-fluence factor as the maximum explosives of single stage is,it is not decisive while the total explosives are closely relat-ed with the vibration intensity;among the 3D intensity value in underground blasting,the horizontal radial value is the relatively small one.
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