摘要
本文利用电液伺服岩石力学试验系统配合自制的压实仪 ,对饱和煤矸石的压实特性进行了试验研究。结果表明 :饱和煤矸石的应力与应变呈指数关系 ,孔隙率与应力呈三次多项式关系 ,碎胀系数与应力呈对数关系 ,变形模量与应力呈线性关系 ,并且矸石粒径的大小对上述关系均有较大影响。饱和矸石由于水的软化作用 ,与自然含水矸石产生了一定的差异。以上结论对工程实际有一定的参考价值 。
etc.The essential mechanical properties of saturated broken coal waste are studied by using Serve-control Rock Mechanics Test system and a broken rock compacting apparatus. The result shows that stress and strain present the exponential relation, porosity and axial stress present polynomial relation, splinter coefficient and axial stress present logarithm relation approximately, and deformational modulus and axial stress approximate to present linear relation. The parameter of the compaction varies with the grain of the coal waste block and the effect of water. Compared with that of the compaction of broken coal waste when being nature, the parameters of the saturated broken coal waste are obviously different. This study provides a useful reference to engineering design.
出处
《矿山压力与顶板管理》
北大核心
2004年第1期106-108,共3页
Ground Pressure and Strata Control
