摘要
针对安徽某铁矿全尾砂胶结充填项目进行了单轴抗压强度试验、剪切试验、三轴压缩试验,得到不同条件参数下的抗压强度、抗剪强度和围压状态下的C,φ值,研究结果表明,砂灰比为6、砂浆浓度为72%时,在兼顾料浆输送和成本的同时,可以保证充填体的强度。
Abstract.. Aimed at the cemented filling project in an iron mine of Anhui province, mechanical strength tests were carried out, including uniaxial compressive strength test, shear test and triaxial compression test. The compre- hensive strength and shear strength under different parame- ters were obtained, as well as the C value and the φ value under confining pressures. The research results showed that the strength of filling body with sand-cement ratio of 6 and slurry concentration of 72% could be guaranteed, as well as the slurry transportation and filling cost.
出处
《矿业研究与开发》
CAS
北大核心
2016年第7期40-42,共3页
Mining Research and Development
关键词
胶结充填
全尾砂
胶结材料
力学强度
优化配比
Cemented filling, Total tailings, Cementing ma- terial, Mechanical strength, Optimum mixture ratio
