煤矿安全2019，Vol.50Issue(4)：41-45,5.DOI:10.13347/j.cnki.mkaq.2019.04.010
复合结构混凝土动力学特征及变形破坏机制
Dynamic Characteristics and Deformation failure Mechanism of Composite Structure Concrete
李玲 1钱学登 1王科2
作者信息
- 1. 湖北科技学院 资源环境科学与工程学院,湖北 咸宁437100
- 2. 中国矿业大学 矿业工程学院,江苏 徐州 221116
- 折叠
摘要
Abstract
In order to explore the dynamic characteristics of rock burst roadway filled composite concrete, the dynamic mechanical properties of pure concrete and composite structure concrete under impact load were studied by using SHPB technology with a section of 75 mm. The results show that the stress attenuation on the left and right sides of foamed concrete in composite structure concrete is 1/5 of the original stress attenuation, and the stress peak on the right side of composite sample is only 1/5 of the stress peak on the left side, the stress attenuation effect of composite structure concrete is very good, and the stress attenuation of composite structure mainly depends on the mechanical properties of soft material specimen 2.关键词
复合结构/混凝土/泡沫混凝土/冲击载荷/SHPB杆技术Key words
composite structure/concrete/foam concrete/impact load/SHPB technology分类
矿业与冶金引用本文复制引用
李玲,钱学登,王科..复合结构混凝土动力学特征及变形破坏机制[J].煤矿安全,2019,50(4):41-45,5.
