combined mining method

基本解释

It is of important significance to the study of the open pit slope stability, underground mining method and mining sequence in open-pit and underground combined mining.
这对研究矿山露天地下联合开采过程中的露天矿边坡稳定性、地下采矿方法和开采顺序等有重要的意义。
www.jsks.net.cn
The technology of crossing over fault, drifting and actual mining method and plan of crossing over fault at combined mining face under complex geology conditions in Jining No.
介绍了济宁二号矿复杂地质条件下综放工作面过断层技术，掘进和回采对断层的处理方法及回采工作面制定过断层方案的步骤。
The BP network model of prediction of gas gushing quantity for combined mining faces is established by means of BP network method of ANN theory. The error analysis and practical use show that co…
通过误差分析及实际应用，证明将关联分析与BP网络结合起来开展采面瓦斯涌出量预测是一种可行的方法。