矿用高水速凝材料结石体基本物理参数测定及微观结构分析

摘要

With respect to the serious environment problems of coal mining, a new concept of green mining is proposed. The goal is to maximize the economic and social benefits. The technical framework of green mining includes water-preservation in mining areas, coal mining to retard surface subsidence, simultaneous extraction of coal and coal-bed methane, reduction of rock waste, underground coal gasification, and others. The natural climate in Northwest in China is very odious, and its geological condition is very complex. The precipitation is less and concentrated. Drought and water logging in the area are very usual to see, and the eco-system is very weak. Water resources in the area are limited. The eco-environment problems such as desertification,loss of soil,mud-rock flow, earth slide, land degeneration and decrease of cultivation area are quite common in the area. In the meantime disorder exploitation of coal mine in the area has made the geological environment and ecology system more fragile. Based on analyzing the problems in detail, his paper puts forward green mining in the areas.%了解材料的基本物理量，对评价该材料的使用价值及使用效果具有十分重要的意义，并且有助于分析材料的强度特征与力学参数。因此在研究高水速凝材料的强度特征与力学性质之前，有必要对其基本物理参数进行测定。高水速凝材料的基本物理参数包括结石体重度、浆液重度、含水率、孔隙率、渗透系数、初凝时间等，本次实验主要测定材料的重度、含水率以及初凝时间。