Intensive underground mining technologies Challenges

About 60% of coal is produced by the underground mining method and the depth of mining is growing which creates a more complex mining environment In 2020 Russia produced million tons of coal including million tons from 58 underground coal mines Tarazanov 2021 At the

The Recent Progress China Has Made in Mining Method

The sublevel caving method is a widely used mining method in underground mines especially in metal mines and in practical application the parameters required for its typical scheme design include stage height segmental height approach spacing etc The selection of these parameters will be optimized according to the geological conditions

Mining Special Issue Recent Advances in Underground Mine

Among all underground mining methods the sublevel caving method is a common method with moderate development requirements a high production rate and a high degree of mechanization and flexibility None of the manual planning methods and heuristic algorithms used in commercial software will lead to a truly optimal schedule Mathematical

PDF Underground Mining Method Selection with the

Underground mining method selection is a multi criteria decision making problem and the mine planners face the challenges in the selection of the appropriate mining method The selection of

The Recent Progress China Has Made in Mining Method

The shrinkage method is one of the earliest and most widely used mining methods in China s underground mines but shrinkage mining is often accompanied by a number of problems and safety hazards With the continuous improvement of the filling process and filling material preparation and transportation technology the application of trackless equipment

Review on the Development of Mining Method Selection to

The CFBPNN method is used in this paper to determine appropriate mining methods for the Chengchao iron mine under various conditions The most effective mining method is cut and fill stoping 4 Based on the total score assigned to all ore properties the results offer metrics that could be used to select among various mining methods

The Main Types of Mining and their Differences

Compared to underground mining methods the open pit mining method requires removing significant amount of overburden from the pit and moving it outside the mine

Optimisation of production planning for an innovative hybrid

Underground mining methods have been used to extract deeper ore reserve for many years where surface mining techniques cannot be economically employed The open pit mining method as the most common surface mining method is widely used to mine deposits located close to the surface in a cost effective manner However as mineral grades decline

Underground Mining Guide The Assay

Read the latest chapters of Advances in Mining Science and Technology at Elsevier s leading platform of peer reviewed scholarly literature

A Causal Analysis of the Influential Criteria in Underground Mining

The criteria affecting the choice of underground mining methods UMMs are interdependent and the causal relationship among them is intricate This can cause various risks and can be a significant challenge in mines Therefore measuring and assessing the level of a causal relationship between these effective criteria aids in the choosing of the most financially

Review on the Development of Mining Method Selection to

The CFBPNN method is used in this paper to determine appropriate mining methods for the Chengchao iron mine under various conditions The most effective mining method is cut and fill stoping 4 Based on the total score assigned to all ore properties the results offer metrics that could be used to select among various mining methods

Applying Nonnegative Matrix Factorization for

[7]and block caving [8] The selection of underground mining methods is usually the most challenging task due to the complexity associated with orebody deposit characteristics The factors that highly influence the selection of both surface and underground mining methods include the physical characteristics of the orebody

Underground Mining Guide The Assay

Read the latest chapters of Advances in Mining Science and Technology at Elsevier s leading platform of peer reviewed scholarly literature

PDF Sublevel Stoping Underground Mining

Underground mining method selection is a multi criteria decision making problem and the mine planners face the challenges in the selection of the appropriate mining method The selection of

Mining methods and method selection SpringerLink

Cite this chapter Brady B Brown E 2007 Mining methods and method selection In Rock Mechanics for underground mining

Lecture 4 Underground Mining PPT SlideShare

The paper proposes a problem solving approach in the area of underground mining related to the evaluation and selection of the optimal mining method employing fuzzy multiple criteria optimization The application of fuzzy logic to decision making in multiple criteria optimization is particularly useful in cases where not enough information is available about a given system

Underground Coal Mining Methods and Their Impact on Safety

In underground coal mining the working environment is completely enclosed by the geologic medium which consists of the coal seam and overlying and underlying strata Depillaring is one of the most dangerous phases of underground coal mining Even after centuries of experience in underground coal mining there is no well established depillaring method

A New Method for Extracting Three Dimensional Surface

Monitoring three dimensional 3D deformation in underground mining areas is crucial for the prevention and control of mining induced disasters Differential interferometric synthetic aperture radar D InSAR is limited to detecting one dimensional 1D deformation along the line of sight LOS This paper proposes a new method for extracting 3D mining induced

Underground Mining Methods 911Metallurgist

The choice of an underground mining method depends on a range of factors and these include; the size and shape of the deposit the orientation or slope of the deposit the depth of the deposit geological structures characteristics of the ore and the surrounding rocks and issues with gas and water In combination these factors allow us to determine an

The Main Types of Mining and their Differences

Compared to underground mining methods the open pit mining method requires removing significant amount of overburden from the pit and moving it outside the mine

Underground Mining Methods Google Books

Underground Mining Methods presents the latest principles and techniques in use today Reflecting the international and diverse nature of the industry a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world Industry experts have contributed 77 chapters

Coal mining Definition History Types & Facts Britannica

The conventional mining techniques described above made up of the cyclic operations of cutting drilling blasting and loading developed in association with room and pillar oldest of the basic underground methods room and pillar mining grew naturally out of the need to recover more coal as mining operations became deeper and more expensive

2024 Mining Terms Explained An Underground Miner

Longwall mining A specific method of underground coal mining where a long wall of coal is mined in a single slice Loose A term used to describe blasted material that has not yet been removed from its original location Low grade ore Ore which runs a relatively small amount of the desired mineral

Room and Pillar Mining an overview ScienceDirect Topics

Two dominant methods together account for the vast majority of underground coal mining room and pillar and longwall mining In room and pillar mining seams of coal are mined partially leaving large pillars of coal intact to support the overlying layers of by this method creates a network of alternating open spaces and large pillars of coal Fig a

Optimisation of production planning for an innovative hybrid

Underground mining methods have been used to extract deeper ore reserve for many years where surface mining techniques cannot be economically employed The open pit mining method as the most common surface mining method is widely used to mine deposits located close to the surface in a cost effective manner However as mineral grades decline