room and pillar mining

ventilation systems of room and pillar mining method

房柱式开采的通风系统

discussion on ventilation leakage law in gateway of room and pillar mining

关于房柱式开采巷道漏风规律的探讨

A large number of mined-out areas usually formed, in the process of mineral resources exploitation, Open-stope method including breasting mining method, room-and-pillar method and shrinkage mining method were adopted in underground mine.

地下矿山应用全面法、房柱法及留矿法等空场类方法进行矿产资源开采过程中，通常会形成大量的采空区。

a semi-analytic method used in three-dimensional subsidence calculation of room and pillar mining

半解析方法用于房柱式开采沉陷的三维计算

expert system in identifying failure mode of hanging wall of room-and-pillar mining

空场采矿法采场顶板破坏模式识别专家系统

rediscussion of room and pillar mining technique

再论房柱式采煤工艺

technical analysis on feasibility of new room and pillar mining method

新型房柱式采煤法可行性技术分析

ore recovering from goaf of room and pillar mining method in xishan gypsum mine, taiyuan city, shanxi province

西山石膏矿房柱采矿法采空区矿石回收

a numerical simulation method used in three-dimensional subsidence calculation of room and pillar mining

房柱式开采减沉效果的三维数值模拟研究

According to mining condition in Xinli mining area, the room and pillar filling method for large and thick ore-body is determined after research.

根据新立矿区开采技术条件，研究确定对厚大矿体采用分矿房矿柱分层充填法开采。

Simulant Research of Room-and-Pillar Mining Structural Size with Digital Computer

房柱采矿法结构尺寸的模拟研究

this type of operation, called room- and- pillar mining , is used most often with soft mineral deposit like salt and coal.

这种作业通常称为房柱式采矿法，开采盐和煤这样的松软矿床时最常用。

application of roof bolt support technology in room and pillar mining of daliuta mine

锚杆支护在大柳塔矿房柱式开采中的应用

influence factors of room-and-pillar mining in seam groups under building

建筑物下煤层群房柱式开采的影响因素