Study of the Dynamic Development Law of Overburden …
In coal seam mining, the overburden strata mainly subsided, the horizontal displacement was very small, and the vertical displacement of the overlying strata all …
Overburden | geology | Britannica
In coal mining: Shovels and trucks. Overburden removal is the most important operation in the system. When the haul distances are small (for example, 500 to 1,000 metres) and the overburden material soft, a fleet of scrapers can load, haul, and dump the overburden.
Slope stabilization of coal mine overburden dumps: life …
The stability of coalmine overburden dumps is a crucial aspect and often requires a slope stabilization method in place to prevent slope failures. Mechanical methods like benching, gabion wall construction, geogrid reinforcement, and biological methods like the use of vegetation can suffice the need for slope stabilization. In this study, a life …
Rules of overburden crack development in coal mining with …
After coal seam mining, the overburden movement is transmitted to the surface to form cracks. As a main factor in the damage inflicted by mining subsidence on ground environments, ground cracks always threaten the safety of people's production and life. There are obvious differences in the laws of surface movement and deformation with …
Geochemistry and mineralogy of coal mine overburden …
Coal mine overburden waste (MW) and Red Mud (RM), globally significant solid wastes posing substantial environmental challenges and inflicting ecological damage through leachates, have prompted industries to explore non-dumping alternatives; however, despite extensive research, economically viable solutions for efficient utilization and …
Hwange's coal-mining horrors
Removal of overburden during mining brings the fires close to the ground," states the report, titled Effects of coal seam fires and other environmental hazards in Hwange. It …
Experimental investigation on stress distribution and …
Coal mining has a significant impact on the movement of the overburden, leading to potential safety hazards in the working face. In this paper, a similarity simulation experiment was conducted to investigate the migration of overburden during the mining process of a specific working face in the Liuzhuang Coal Mine located in southern …
Coal and Coal Mining
Coal Mining Methods Surface mining – involves stripping off overburden to access coal resources. Overburden is the layers of soil and rock that overlie a coal bed. Surface …
A review on utilisation of coal mine overburden dump …
Coal is the cheapest and thus the preferred energy source in developing countries. A huge volume of coal mine waste rock, which is known as overburden (OB), is generated due to the surface mining ...
Moving Overburden Efficiently, Sustainably
"Early on, we got into coal," Swank said. "Shortly thereafter, the mines that had our product in coal needed beds for overburden." After the PHIL Overburden Body, released in 1979, came the HiVol Dual …
Open Pit Mining
Open pit mining method is one of the surface mining methods that has a traditional cone-shaped excavation and is usually employed to exploit a near-surface, nonselective and low-grade zones deposits. It often results in high productivity and requires large capital investments, low operating costs, and good safety conditions. The main …
Ministry of Coal, Government of India
OBR (Overburden removal) In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the …
Typical Costs for Removing Overburden (Dragline …
Download Table | Typical Costs for Removing Overburden (Dragline versus Truck and Shovel Operations) [9] from publication: A review on existing opencast coal mining methods within Australia ...
What is Mining Overburden and Does It Require …
Mining overburden refers to the soil, rocks, and ecosystem materials that lie above an ore body or coal seam, which must be moved or cleared away to access the valuable resources beneath. This process is a fundamental aspect of various mining operations, but it also raises significant environmental and management challenges.
Research on overburden structural characteristics and …
This study provides a valuable engineering reference for achieving cooperative mining of abandoned sectional coal pillars and lower layer coal seam in …
A Sustainable Approach for Stabilization of Coal Mine Overburden …
The paper reviews the different strengthening techniques to control the displacement of piles of coal overburden wastes. In the present era, the urge for power and minerals is increasing due to rapid growth in industrialization. Thus, extracting minerals buried in the earth require the removal of topsoil or cover if the method involves open …
Overburden management in open pits: options and limits …
Overburden (OB) removal to extract coal is a major mining activity of surface coal mines. In thick coal OB mining, OB removal accounts for over 70% of the total mining volume and cost (Corke et al ...
Strip Mining
Strip mining is a method of extracting coal reserves by removing overburden in rectangular blocks known as pits or strips, using equipment like draglines or continuous excavators to mine and move the overburden. The process involves drilling, blasting, overburden casting, and coal removal in a sequential manner within adjacent pits.
Research on overburden structural characteristics and …
In the mining process of the II1 coal seam at Zhaogu No. 2 coal mine, a method of stratified mining is employed, leaving relatively wide coal pillars in sections. To enhance the resource recovery ...
-Coal production and overburden removal from mines
Coal is the cheapest and thus the preferred energy source in developing countries. A huge volume of coal mine waste rock, which is known as overburden (OB), is generated due to the surface mining ...
Control of surface deformation and overburden movement in coal mine …
1. Introduction. The mining waste rock is inevitable during the coal mining operations and it accounts for 10 %–15 % of the Run of Mine production (Zhang et al., 2019; Li et al., 2022; Fan et al., 2014).It is estimated that the accumulated waste rock in China is over 6 billion tons forming over 2600 big scale waste dump occupying over …
Understanding Overburden in Mining: A Comprehensive …
Overburdens in coal mining—mountaintop removal mining is considered a safer mining method for coal removal since it avoids underground coal mining. Overburden soil is removed above the coal seams before extracting the ore.
Study of the Dynamic Development Law of Overburden Breakage on Mining
Coal is asignificant source of energy 1,2,3, but the production process is often disastrous.It is very important for the mining face pressure control and the horizon selection of high- and low ...
16.2: Mining, Processing, and Generating Electricity
Mining. Coal is extracted by two principal methods, of which there are many variants: surface mining or subsurface mining. Surface mining uses large machines to remove the soil and layers of rock known as overburden to expose coal seams that are close to the Earth's surface (figure (PageIndex{a})).Strip mining is a type of surface mining in …
Overburden management in open pits: options and limits in …
Overburden materials can be soil, soft and hard rock. A wide range of equipment can be utilised for overburden removal in open-cast mining, according to …
Numerical study of the effect of overburden pressure on the …
Coal production in India is the second highest in the world, with a production of 777.31 million tonnes (https://coal.gov.in/, 2023) in 2022–23 and a growth of 8.55% than …
Background for NEPA Reviewers: Non-Coal Mining …
Overburden and waste rock are the non-liquid wastes generated in largest volumes by extraction activities; tailings and spent ore are generated by beneficiation; and slag is generated through processing. Surface and underground mining are the two most common types of mining conducted; however, there are two other types of mining, placer and in ...
(PDF) Rules of overburden crack development in coal mining …
After coal seam mining, the overburden movement is transmitted to the surface to form cracks. As a main factor in the damage inflicted by mining subsidence on ground environments, ground cracks ...
Overburden Removal
Overburden Removal. Whether it be 50,000 cubic yards or 5 million cubic yards of overburden, Turner Mining Group has you covered. The last thing you need is a surprise when it comes to cost, which is why we …
Strip mining | Surface Mining, Reclamation & Restoration
Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common strip-mining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations