longwall mining method的意思|示意

The research result shows that longwall mining method with hydraulic pressure frame supporting capping rock is the optimal mining proposal for the gently inclined and extremely thin iron mine.

研究证明，液压护顶长壁法是开采缓倾斜极薄类铁矿床最优的采矿方法。

Through the detail introduction on optimization of raining method in Shandong Wangcun Bauxite Mine, this paper puts forward a new mining method——longwall caving with artificial roof pillar.

通过对山东王村铝土矿采矿方法优化的介绍，提出了一种新的采矿方法——人工顶柱无底柱长壁式崩落法。

Based on the model of mechanics, some functional formulae of strata and surface movement above longwall mining goaf are derived by using the displacement method of theory of elasticity.

本文在力学模型的基础上，利用弹性理论的位移函数法导出了长壁采煤法采空区上方岩层及地表移动的函数表达式，同时给出了岩层及地表最大移动值的计算公式。

The ventilation system provides a new method to realize the safe and efficient mining of high gas longwall mining with sublevel caving.

这一通风系统可为其他高瓦斯综放面安全高效开采提供了一条新的技术途径。

The paper discusses the application and the effects of the coal mining method with retreating-longwall flexible shield support in steeply-inclined coal seam.

叙述了走向长壁后退式柔性掩护支架采煤法在急斜煤层中的应用及效果。

This model provides a unified idea and method for study of pressure in longwall mining and strata movement.

组合岩梁模型的建立，为采场矿压和岩层移动的研究提供了一种新的思想和方法。