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| 土中不耦合柱状装药的外部作用爆腔分析 | |
| 引用本文： | 李毅,代仁平,史瑾瑾.土中不耦合柱状装药的外部作用爆腔分析[J].水科学与工程技术,2011(4):44-47. |
| 作者姓名： | 李毅 代仁平 史瑾瑾 |
| 作者单位： | 1. 重庆华地工程勘察设计院,重庆,400042 2. 同济大学道路与交通工程教育部重点实验室,上海,201804 3. 西南科技大学环境与资源学院,四川绵阳,621010 |
| 基金项目： | 西南科技大学青年基金项目(08zx3112),西南科技大学大学生创新基金项目(09013) |
| 摘 要： | 基于现场爆破试验、爆炸应力波理论和爆生气体等熵方程,分析了土中不耦合垂直柱状药包外部作用的爆腔特性,将爆腔分为柱状空腔和半椭球腔两部分,并推演了柱状空腔半径和半椭球腔高度的理论计算公式。通过进行现场爆破试验和理论计算的对比分析,表明:柱状空腔半径比半椭球腔高度大,柱状空腔半径为8.5～15.3倍炮孔半径,半椭球腔高度为7.5～12.1倍炮孔半径。理论计算值与试验值较吻合,理论计算的柱状空腔半径的误差范围是5.2%～20.6%,理论计算的半椭球腔高度误差范围为2.0%～24.8%。同时表明:不耦合装药时药包周围空气间隙的大小对柱状空腔半径影响较大。 |
| 关 键 词： | 柱状药包 不耦合装药 柱状空腔 半椭球腔 |
Analysis for the Explosion Cavity of Decoupling Column Charge External Effect Blasting in Soil |
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| LI Yi,DAI Ren-ping,SHI Jin-jin.Analysis for the Explosion Cavity of Decoupling Column Charge External Effect Blasting in Soil[J].Water Sciences and Engineering Technology,2011(4):44-47. | |
| Authors: | LI Yi DAI Ren-ping SHI Jin-jin |
| Affiliation: | LI Yi1,DAI Ren-ping2,SHI Jin-jin3(1.Huadi Engineering Survey and Design Institute,Chongqing 400042,China,2.Key Laboratory of Road and Traffic Engineering of Ministry of Education Tongji University,Shanghai 201804,3.Institute of Environment and Resource Southwest University of Science and Technology,Mianyang 621010,China) |
| Abstract: | Based on the blasting tests,explosive stress wave theory and isentropic equation of the detonation gas,the explosion cavity characteristics of decoupling column charge external effect blasting in soil was analysed,the explosion cavity was bursted into cylindrical cavity and semi-ellipsoidal cavity,the theoretical formulas of ellipsoidal cavity radius and semi-cylindrical cavity height were deduced.According to the comparative analysis of blasting tests and theoretical calculations,the results showed that el... |
| Keywords: | column charge decoupling charge cylindrical cavity semi-ellipsoidal cavity |
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