有色金属科学与工程2016，Vol.7Issue(5)：72-75,4.DOI:10.13264/j.cnki.ysjskx.2016.05.013
不同块石配比充填体的强度特性研究
Strength characteristics of different ratio stone backfills
摘要
Abstract
The single axial compression test of the cement filling body with different block stone was performed by using RMT-150C hydraulic servo control system. The compressive strengths of the block were 3.800 MPa, 4.090 MPa, 2.729 MPa and 3.333 MPa respectively when the mass fraction of the block were 0 %, 30 %, 40 %and 50 %. The change law of the compressive strength value increases at first and then reduces and increases again with the adding of the block stone content. The value of strain which stress corresponded of peak value the stress-strain curve of the four groups was analyzed. The strain value of the block was 0.006, 0.0075, 0.010 and 0.0125 when the mass fraction of the block was 0 %, 30 %, 40 % and 50 %. The increase of the rock block can effectively improve the deformation capacity of the filling body, but it can reduce the bearing capacity of the filling body to a certain extent.关键词
块石胶结充填体/力学特性/块石含量/单轴抗压强度/粒径Key words
blocky rock cemented filling/mechanical properties/stone content/uniaxial compressive strength/particle size分类
矿业与冶金引用本文复制引用
卓毓龙,陈辰,曹世荣,王晓军,邓书强,冯萧..不同块石配比充填体的强度特性研究[J].有色金属科学与工程,2016,7(5):72-75,4.基金项目
国家自然科学基金资助项目（51304083）；江西省科技支撑计划项目（20141BBE50005）；江西省研究生创新基金资助项目 （）
