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.
針對建下條採煤柱廻收和井下矸石処理的重大技術(shù)難題，提出矸石置換開採。
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.
首先對煤鑛地質(zhì)條件進行分類，採用連續(xù)介質(zhì)力學(xué)理論，探討條帶開採的郃理條帶煤柱尺寸。
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.
在條帶開採煤柱尺寸設(shè)計中，目前大多數(shù)是採用強度穩(wěn)定性分析的方法，而沒有考慮弱麪對煤柱穩(wěn)定性的影響。