高水胶凝材料固水能力分析

高水胶凝材料是一种速凝高固化水的新型材料。本文从该材料中水的存在形式，各占的比例等几个方面对其固化水的能力进行了较详细地分析、表明在配料中，必须重视基料的质量，以及基料和辅料的合理配比。     

应用粒化高炉矿渣降低高水胶凝材料成本的可行性研究

本文根据粒化高炉矿渣含有较多活性成分的特点，从理论上分析用粒化高炉矿渣配制高水胶凝材料的可行性。     

块石胶结充填技术的研究及应用

国内外部分矿山块石胶结充填的技术数据和经验表明该项技术具有充填成本低、充填能力大、充填体强度高等优点。着重分析了影响块石胶结充填体强度的主要因素:块石级配、块石砂浆配料比、运输充填方式、采场的平面形状等, 指出了块石胶结充填技术的适用条件、发展方向及应用前景。     

铁铝型高水速凝全尾砂充填材料的试验研究

铁铝高水速凝全尾砂充填材料是一种以铁铝型高水速凝材料为胶凝材料的新型充填材料,介绍了铁铝型高水速凝材料的组成及特点,分析了全尾砂的物理化学性质,重点对铁铝型高水速凝全尾砂充填材料的配比及其物理化学性质进行了试验研究,结果表明,该材料是一种成本低,适于单管输送的优良充填材料,具有矿山推广应用的价值。     

Stability analysis of new safety cleaning bank in steep slope mining

Based on the study of the slope with gently granular structure in Xingqiao open mine, a new safety cleaning bank mode for steep slope mining was developed, including setting up dint cut, and forming natural retaining wall based on the character of gentle incline slope. It can effectively eliminate the impact of sliding body on the bottom working place and slope body, reduce the dilution of ore, keep rainwater from upper steps away, decrease influence of the weak intermediate layer, and cut cost of disposal waste rock. The safety and reliability of the mode were analyzed and verified from 3 aspects: static load calculation, ANSYS simulation of dynamic loading and spot experiment. The result of static loading calculation shows that the retaining wall can support accumulation and extrusion of granular body, and the glide or overturn disaster will not take place. The simulations of dynamic loading show that the retaining wall remains stable until sliding body collapses from 360 m (10 sublevels). Only one new safety cleaning bank in each 1 - 5 sublevels can fully meet the need of engineering. The new mode sustains steep slope mining, increases the angle of ultimate slope, and reduces invalid overburden amount of rock by 3%-5%. The result of spot experiment has verified the exactness of the above calculations and simulations.