论文部分内容阅读
无底柱分段崩落采矿方法,目前在我国地下开采矿山得到较广泛的应用。通过生产实践,已初步显示出它具有比其它采矿方法独到的优点。但是每种采矿方法都具有各自的特殊性和一定的适用条件,作为一种崩落采矿法,又都具有自身的放矿规律。为了进一步认识无底柱分段崩落采矿法的放矿规律,我们在1966～1970年大庙铁矿工业试验基础上,于1973年开始了实验室的研究工作和现场的测定工作。这里仅将实验室初步的试验结果,总结如下。
Bottomless pillar caving mining methods, mining underground in China is now more widely used. Through production practices, it has been initially shown to have unique advantages over other mining methods. However, each mining method has its own particularity and certain applicable conditions. As a caving mining method, it has its own law of ore draining. In order to further understand the law of subsoil caving mining law, we in 1966 to 1970 on the basis of iron ore industry test, based on the laboratory in 1973 began the research work and site determination. Here only the initial laboratory test results, summarized as follows.