| 大尺寸混凝土模型爆破试验与动态应变观测 |
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| 引用本文： | 廖先葵,粟霞云,芦开荣,楼卫国. 大尺寸混凝土模型爆破试验与动态应变观测[J]. 矿业研究与开发, 1997, 0(Z1) |
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| 作者姓名： | 廖先葵 粟霞云 芦开荣 楼卫国 |
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| 作者单位： | 长沙矿冶研究院，长沙矿冶研究院，武钢大冶铁矿，武钢大冶铁矿 长沙，410012，长沙，410012，黄石市，435006，黄石市，435006 |
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| 摘 要： | 通过三个模型多次爆破和动态应变测试,得出在不同的介质和不耦合系数时主炮孔峰应变表达式和爆破动态应力的半经验计算方法,提出了预裂参数和光面爆破参数的另一种计算方法,实测预裂缝降低主炮孔峰应变23.6%～60%。
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| 关 键 词： | 混凝土模型 爆破试验 动态应变 |
EXPLOSION TEST AND DYNAMIC STRAIN OBSERVATION OF LARGE SIZE CONCRETE MODELS |
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| Liao Xiankui Su Xiayun. EXPLOSION TEST AND DYNAMIC STRAIN OBSERVATION OF LARGE SIZE CONCRETE MODELS[J]. Mining Research and Development, 1997, 0(Z1) |
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| Authors: | Liao Xiankui Su Xiayun |
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| Abstract: | Through the explosion and dynamic strain measurement of three models for several times, an expression of peak strain of main blasthole with different media and decouple coefficients and a semi-experienced calculation method of dynamic stress in explossion were obtained, and another method for the calculation of pre-splitting blasting parameters and smooth blasting parameters was put forward. The measured pre-splitting seams can reduce 23.6% ~ 60% of the peak strain of main blasthole |
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| Keywords: | Concrete model Explosion test Dynamic strain |
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