Pillar

用法例句

Effect of Heterogeneity of Pillars and Surrounding Rock on Failure Process of Mined-Out Area;

矿柱及围岩非均质性对采空区破坏过程的影响

Analysis of pillar stability in hard rock mass by longitudinal splitting based on catastrophe theory;

硬岩矿柱纵向劈裂失稳突变理论分析

Stability Numerical Analysis of Mine Room and Pillar Affected by Fault;

矿房与矿柱稳定性的断层影响数值模拟研究

An inquiry into the feasibility of ore pillar stoping in Lanjia Gold Mine;

兰家金矿矿柱回采可行性探讨

The writer introduces the situations of ore deposit underground and ore pillar recovery during road development in Pingguo Bauxite Mine,and proposes to recover the ore pillar under the road first and then to complete the design and construction of the road in the section of mining stope afterwards.

对平果铝土矿开拓公路的压矿及矿柱回收情况进行了介绍,提出了先回收公路下矿柱,后设计、施工采场段公路的观点。

As a result,the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly,then stoping ore pillar by medium length hole caving method.

后沟金矿采用平底结构浅孔留矿法先采矿房，后用中深孔崩落法回采矿柱，经两年多的生产实践，取得较好的技术经济指标。

2 Mine area,two mining levels with different altitudes were resulted from the backfilled mining in large hypogeal area without micro-jambs,and the ore-body between them called a macro-horizontal jamb was distinguished as seven mechanized panels.

金川二矿区采用大面积不留矿柱回填采矿法,开拓出不同标高的两个采矿面,其间为水平矿柱。

Study on the mining technology for pillar group in accident potential area;

特大事故隐患区矿柱群回采技术研究

pillar robbing

【采矿】回收矿柱法

open-end method

(采矿) 敞开进路式矿柱回采法

Reliability analysis Of the Pillar stability in Bainaimiao Copper mine

白乃庙铜矿矿柱稳定性的可靠性分析

Mine Pillars Mining with Small-scale Coal Mining Approach in Small Coal Mine

小型煤矿采用小进路采矿法的矿柱回采

Application of Non-pillar Sublevel Caving Method in Pillar Recovery

无底柱分段崩落法在矿柱回收中的应用

Concrete column as substitute for ore pillar in room-and-pillar mining

人工混凝土柱代替原生矿柱在房柱法开采中的应用

When the ore is particularly valuable, the walls and pillars are often removed at a later stage and the roof of the chamber is allowed to cave in. This technique is known as robbing.

如果矿石特别宝贵，矿壁和矿柱常在最后回采，让采场顶板冒落。这一技术叫矿柱回采。

If the jamb-mine isn't exploited, the economic benefit will go down rapidly.

如果不采矿柱矿山经济效益将急剧滑坡。

The Technology and Practice of the Safe Pillar Stoping in the Mined Area of Shizishan Copper Mine

狮子山铜矿采空区矿柱安全回采技术与实践

Study and Application on the Stability of the Mine Pillars and Surrounding Rocks in Xiadian Gold Mine;

夏甸金矿矿柱及围岩稳定性分析与应用

Application Research of Artificial Jamb in Mining the Gentle Decline Underground Mine

人工矿柱在缓倾斜地下矿开采中的应用研究

On Stability Division of Irregular Pillar in a Wollastonite Mine in Zhejiang Province

浙江省某硅灰石矿不规则矿柱稳定性区划研究

Application of Room and Pillar Mining Method in Under-sea Deposit

分矿房矿柱分层充填法在海底开采中的应用

Study on Control Mining of Safety Pillar by Similarity Simulation Experiment in Chenchao Iron Mine

程潮铁矿保安矿柱控制开采相似模拟实验研究

triple-entry room-and-pillar mining

三进路房柱式采矿法

Study on the MC Nylon Shoe of Individual Strut for Mines

矿用MC尼龙单根支柱柱鞋的制备研究

STUDY ON MINERAL PROCESSING TECHNOLOG OF THE REFRACTORY OXIDIZED LEAD-ZINE ORE IN SHIZHU

石柱难选氧化铅锌矿石选矿工艺研究

Research on Longwall Rigid Separating Pillar Mining Technology of Small Colliery in YSF Field;

榆神府矿区小煤矿长壁布置刚性隔离煤柱房柱式开采研究