Three dimensional numerical simulation for explosion cavity forming of linear charge in soil 條形裝藥土中爆炸成腔的三維數(shù)值模擬
The paper outlines the development of linear charge blasting techniques and puts forward the necessity of researching characteristics of blasting vibration on linear charge 摘要簡要介紹了條形藥包的發(fā)展現(xiàn)狀,指出了條形藥包大爆破地震特性研究的必要性。
D ) . puts forward stress wave research method when the linear charge blasting . it regarded column stress wave as cylinder stress wave , end stress wave as spherical wave D )提出了將條形藥包柱部應(yīng)力波當(dāng)作柱面波、端部應(yīng)力波當(dāng)作球面波處理的應(yīng)力波研究方法。
Based on a directional cast linear charge blasting in meng jia gou mine at 17 , 9 , 2003 , the measurement and results of blasting vibration are fully analyzed 結(jié)合2003年9月16日在首鋼孟家溝鐵礦成功進(jìn)行的一次條形藥包露天礦揭頂剝離松動大爆破,對爆破地震的測試及結(jié)果進(jìn)行了全面分析。
After this , according to the difference between practice and perfect condition , the paper establish the stress attenuation formula on the radical direction under linear charge blasting 隨后對理想方程進(jìn)行了修正,建立了條形藥包爆破徑向應(yīng)力理論衰減方程。并利用已有試驗(yàn)結(jié)果對所獲得的徑向應(yīng)力衰減方程進(jìn)行了驗(yàn)證。