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      豎井爆破最佳延時(shí)時(shí)間的減振控制研究
      2021-03-01 10:10
      來源: 紹興交投

      字號(hào):

      論文題目:

      豎井爆破最佳延時(shí)時(shí)間的減振控制研究

      論文類別:

      CSCD核心

      單位及作者:

      紹興市交通建設(shè)有限公司 侯義輝

      論文摘要:

      為了深入研究在豎井爆破擴(kuò)挖施工中不同延時(shí)時(shí)間對爆破效果的影響,總結(jié)分析現(xiàn)有相關(guān)研究后,綜合考慮研究需要,相對 全面地將延時(shí)時(shí)間設(shè)定為0、2、5、10、20、25、35ms,通過控制變量法只考慮不同延時(shí)時(shí)間對于研究主體的影響規(guī)律。利用動(dòng)力有限元 分析軟件LS-DYNA 建立通風(fēng)豎井延時(shí)爆破擴(kuò)挖數(shù)值模擬模型,計(jì)算得出不同延時(shí)時(shí)間以及不同間隔距離對應(yīng)的振速時(shí)程曲線、峰值 振速以及結(jié)構(gòu)失效情況,通過對計(jì)算結(jié)果的綜合分析,從多個(gè)角度確定了針對所模擬的工況最佳的延時(shí)時(shí)間為25ms,且得出了延時(shí) 爆破不同延時(shí)時(shí)間對減振效果的一些實(shí)用性規(guī)律,對于類似工程延時(shí)爆破技術(shù)設(shè)計(jì)及參數(shù)優(yōu)化具有一定的借鑒意義。

      關(guān)鍵詞:

      延時(shí)爆破;豎井爆破;延時(shí)時(shí)間;減振效果;數(shù)值模擬

      正文:

      豎井爆破最佳延時(shí)時(shí)間的減振控制研究.pdf


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      發(fā)表刊物

      (CN或ISSN號(hào)):

      《工程爆破》(CN 11-3675/TD,ISSN 1006-7051),2021年2月第27卷第1期,109-115頁

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