| 凿井爆破冲击对随砌砼井壁强度影响的动力学研究 |
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| 作者单位： | ;1.山东矿业学院 |
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| 摘 要： | 以弹性力学和板壳理论为基础，研究了现今流行的立井短段掘砌施工法中一个关键性难题──爆破冲击对上部现浇井壁砼强度的影响，导出了其整体应力分布的解析解，并用实验数据进行了验证，从而初步阐明了问题的实质与规律，为改善建井质量提供了决策依据。
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| 关 键 词： | 短段掘砌凿井法，爆破力学，爆破危害作用 |
DYNAMICS STUDIES ON THE IMPACT OF BLASTING UPON CAST-IN-PLACE CONCRETE WALL STRENGTH IN SHAFT SINKING |
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| Affiliation: | ,Huang Qi,Hu Feng(Shandong Mining Institute) |
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| Abstract: | This paper, on the basis of elastic mechanics and the theory of shells,discusses a crux problem in the recently popular method of short sectional shaft sinking-the impact of blast vibration upon cast-in-place concrete wall strength,The analytic solution for its whole stress distribution has deduced and verified with the test data.Thus,the substance and law of the impact is preliminarily expounded,which will provide decisionmaking ba-sis for improving the quality of mine shaft construction. |
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| Keywords: | Short sectional building-sinking method of concretelined shaft Blasting dynamics Harmful effect of blasting |
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