strip coal mining

常见例句

In order to solve the technical problems of mining strip extraction coal-pillar and waste disposal, the waste substitution extraction is proposed.
针对建下条采煤柱回收和井下矸石处理的重大技术难题，提出矸石置换开采。
The coal mine's geological conditions are classified, and the rational sizes of strip coal pillars in strip mining are discussed using the theory of continuous medium mechanics.
首先对煤矿地质条件进行分类，采用连续介质力学理论，探讨条带开采的合理条带煤柱尺寸。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
在条带开采煤柱尺寸设计中，目前大多数是采用强度稳定性分析的方法，而没有考虑弱面对煤柱稳定性的影响。