The dangerous and hazardous factors are analyzed in the inclined and bedded gypsum mineral deposit underground mining by pillar-and-room method.
本文对缓倾薄层石膏矿床房柱法开采过程中存在的危险危害因素进行了分析,指出采空区坍塌是最重要的危险危害因素,分析认为矿体基本力学性质和采矿方法是影响采空区坍塌的主要因素,提出了当前应优先考虑的安全管理和安全技术新对策。
Taking the effects of F13 fault into consideration,the mining method,stoping procedure and conveyance method for the practical situation of 2~# hanging wall ore in Daye Iron Mine are discussed.
探讨了国内外挂帮矿开采方法,将其按开采方式的不同分为外扩境界露天开采、地下开采和露天-地下联合开采3类,并就各自特点进行了述评。
Under the threat of water disester,a central drainage system has been set up and inclined working face has been laid,which put forward a new mining method within complicated hydrogeological conditions.
介绍了采区走向式布置在受水患影响严重的情况下,建立集中排水系统,并依托旧系统布置倾斜开采工作面的具体做法,探索了解决水文地质条件复杂、围岩含水丰富煤层的开采方法。
Advanced mining methods can be used to reduce the damage to its minimum,land reclamation and comprehensive control technology can be applied to remedy mining-damaged land,and proper economic and political measures can be taken to prevent farmland from damage.
从开采方法、土地复垦与综合治理、经济和政策等方面采取措施,可以最大限度地减小采矿对土地资源的破坏,治理好矿区土地资源,保护好耕地,实现粮食产需总量的大体平衡。
and feasible production methods of NGH are also explained.
简要介绍了天然气水合物的性质、国内外研究现状及其全球资源分布情况,阐述了其常用的地震、取心、测井等勘探手段和可行的开采方法。
In addition, the feasibility of some NGH production methods is analyzed, and some problems of NGH origin and its exploration and production risks are discussed.
综合新近前人资料,简要介绍了天然气水合物研究现状及已知勘探成果,阐述了天然气水合物地质、地震及测井等勘探手段,分析了天然气水合物开采方法的可行性,并对天然气水合物成因及勘探开发风险问题进行了讨论。
On the basis of the field data of the destruction height of the cover rocks by different mining methods, the relations of the heights of the roof caving rock strata and the destruction height of the cover rocks have been studied.
在对不同开采方法覆岩破坏高度实测资料分析对比的基础上，研究了冒落岩层高度及碎胀性与覆岩破坏高度的关系，探讨了开采方法对覆岩破坏高度的影响，其结论对于覆岩破坏理论研究及水体下采煤实践具有促进与指导意义。
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
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
high-face room-and-pillar mining
高工作面房柱式开采
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
triple-entry room-and-pillar mining
三进路房柱式采矿法
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
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
open-end method
(采矿) 敞开进路式矿柱回采法
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
Development of MCAI Courseware for Sublevel Caving;
无底柱崩落采矿法的MCAI课件的开发
An Analysis of Management of Ceiling Boards of Mining Way in House-post of Dounan Mine
斗南矿区房柱采矿法顶板管理问题初探
A new method for the mining of gentle dip and mediun thickness orebody
缓倾斜中厚矿体的一种新的采矿方法——深孔放顶连续回采房柱法
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。
pillar robbing
【采矿】回收矿柱法
Numerical Study on Substitution Extraction in Coal Pillar of Strip Mining
条带开采留设煤柱置换开采方法的数值模拟研究
Study on Optimization Design and Destruct Monitoring Character of Coal Pillar in Longwall Remaining Coal Pillar Support Mining;
长壁留煤柱支撑法开采煤柱优化设计及破坏的可监测性研究