strip coal mining

常見例句

In order to solve the technical problems of mining strip extraction coal-pillar and waste disposal, the waste substitution extraction is proposed.
針對建下條采煤柱回收和井下矸石處理的重大技術難題，提出矸石置換開采。
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.
首先對煤礦地質條件進行分類，采用連續(xù)介質力學理論，探討條帶開采的合理條帶煤柱尺寸。
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.
在條帶開采煤柱尺寸設計中，目前大多數(shù)是采用強度穩(wěn)定性分析的方法，而沒有考慮弱面對煤柱穩(wěn)定性的影響。