pillar and breast method

用法例句

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

Recently benefits of coal mines become more and more better,many local coal mines begin to reform the original mining method,among those changes,roof fall arose from room-and-pillar mining to fully mechanized mining directlythreaten the safety of production.

由于目前的煤炭效益越来越好,许多原有的地方煤矿开始进行采煤方法的改革,其中在从房柱式开采向综放开采转变过程中出现的顶板垮落现象直接危害到工作面的安全生产,文中通过相似模拟实验对此进行了研究,得出控制顶板垮落动力灾害的关键在阶段煤柱的留设。

high-face room-and-pillar mining

高工作面房柱式开采

Principal Technology Study on Pillor Mining under the System of Room and Pillor Mining;

房柱式开采体系煤柱回收关键技术研究

Study the technique of caving hanging roof in the condition of hard roof of room-and-pillar mining.;

房柱式开采坚硬顶板条件下悬顶放顶技术研究

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

Study on Disposition Method of Huge Goaf in Room-And-Pillar-Mining in Pingyi Gypsum Colliery;

平邑石膏矿房柱式开采大面积采空区处理方法研究

Study on the Damage patterns and Mechanism of Mined-out Area in Mines using Room-and-Pillar Mining Method

房柱法开采矿山采空区失稳模式及机理

triple-entry room-and-pillar mining

三进路房柱式采矿法

Lots of coal mines in neimenggu use the system of room and pillar and exploits only rooms but not pillars.

内蒙古地区很多煤炭生产基地多利用房式开采体系，只采煤房，不采煤柱。

open-end method

(采矿) 敞开进路式矿柱回采法

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

Application of Slice and Room-and-Pillar Mining with Overcut in Mofang Mine

分层开采的切顶房柱法在磨坊矿的应用

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

Research on Dynamic Controlling of Ground Pressure For Room and Pillar Mining and Application of Artificial Intelligence;

房柱式采矿地压动态控制及人工智能应用研究

Analysis self-stability of the room and pillar type mined-out area in the level or gently inclined strata

水平或缓倾斜地层中房柱式采空区自稳性分析

Study and Practice on the Coal Mining Technology of the Rooms & Pillars Mining Mechanization Operated with Continuous Miners;

连续采煤机房柱式短壁机械化采煤技术的研究与实践

Study on Technology of Top-coal Caving Mining of Lane Pillar in 3.5～10m Steeply Inclined Coal Seam;

3.5～10m急倾斜煤层巷柱式放顶煤开采技术研究

FE Dynamic Simulation Analysis of in Under-Sea Point Pillar Mining

海下点柱式开采的有限元动态模拟分析

Optimization of the Design of Mining Area and to Mine Reasonably the Coal-Pillar of Mine Surface Plant;

优化采区设计 合理开采工业广场煤柱