Sustainability | Free Full-Text | Overview of Solid Backfilling
The mining-separating-backfilling + X takes the underground mining, separation and backfilling as a whole and aims to achieve high coordination between …
Equipment Backfilling Strip Mine
Research on Application of Strip Backfilling Mining …
Aiming at the problem of difficult mining of coal resources under buildings, railroads and water bodies in northern Shaanxi, China, a narrow strip filling mining (NSFM) method is proposed.
Backfilling Materials for Underground Mining, Volume II
In coal mining, backfilling of the gob area is performed in conjunction with the mining operations. The properties of solid-waste backfilled materials may significantly influence local strata behavior. ... the equipment of the backfill mining method. Finally, the authors claim that this paper serves just as a guide, tossing out a brick to get a ...
Surface subsidence prediction method of backfill-strip mining …
Backfill-strip mining technology is composed of backfill mining technology and caving mining technology,and a conventional subsidence prediction method, which has been proposed based on the implementation process of backfill-strip mining technology, has been used to predict the surface subsidence in backfill-strip mining (Wang et al. …
Strip Mining
Coal Mining, Design and Methods of. Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area …
Thermal recovery process of a backfilled open-pit in
Timely and proper backfilling of open-pits in strip coal-mines has been an effective measurement for the recovery of the hydrothermal regimes and ecological environment in permafrost regions. In this study, numerical simulations and statistical regressions were applied for analyzing the recovery processes of the backfill and its …
Properties and Application of Backfill Materials in Coal Mines …
Coal is the basic resource underpinning energy generation in China, however, constant, large-scale mining of coal results in many problems such as ecological destruction of mining areas. As a result, backfilling of solid waste underground is proposed to control strata and surface subsidence and to protect the environment. At …
Solid Backfilling Efficiency Optimization in Coal Mining
In coal mining, solid backfilling technology is widely used. However, its efficiency is seriously hindered by the following two factors. Firstly, the process flow of the solid backfilling operation is more complicated in the back, and the spatiotemporal linkage (SPL) between actions of the cylinders powering each support and between hydraulic …
Key theory and technology of cemented paste backfill for …
Cemented paste backfill technology plays a pivotal role in promoting green mining within the metal industry. The technology allows safely backfilling of surface …
Study on surface subsidence prediction method of shallow
The backfill-strip mining is gradually applied to shallow coal seam mining for buildings protection because of its good effect, high resource recovery rate, and low filling cost (Guo et al. 2004; Wang et al. 2015a, b; Li et al. 2016; Zhu et al. 2019a, b).The traditional subsidence prediction method in backfill-strip mining is to divide the mining …
Mining scheme design for super-high water backfill strip mining …
Considerable coal resources are buried under buildings in No. 5 mining area of Hengjian Coal Mine, which greatly shortens its service life. Working on the premise that the degree of mining-induced damage to surface buildings should not exceed the protective indicator, the mine proposes to use super-high water backfill technology so as to …
Subsidence Control Design Method and Application to Backfill‐Strip
Since backfill-strip mining method was proposed, it has undergone continuous development. Backfill-strip mining uses coal gangue and other solid wastes as the main backfill material to fill the underground mine; on the one hand, it can reduce waste discharge such as gangue; on the other hand, it can be applied in coal seam extraction …
Surface collapse control under thick unconsolidated layers …
Request PDF | On Jan 15, 2019, Feng Wang and others published Surface collapse control under thick unconsolidated layers by backfilling strip mining in coal mines | Find, read and cite all the ...
A new indicator for estimating the degree of mining-induced …
The 'Massive or Intact' rock mass dominated overburden in the deep mining areas of the Ordos coalfield is very well-suited for using a non-conventional strip or …
What is Backfilling? A Guide to Backfill in Mining and …
While backfilling is often used in the mining sector, there are a number of hazards to be mindful of when undertaking the backfill. Incorrectly applied backfill can be hazardous and potentially fatal for your team. ... Equipment and Machinery (48) Home Improvement (45) smart building technology (43) Textbooks (42) Gadgets and Products …
Surface collapse control under thick unconsolidated layers …
The principle of the backfilling strip mining technique can be described as follows: a certain longwall length and an appropriate mining height are considered . Design. Based on the geological conditions within the two coal mines, the mining parameters of the longwall face are determined based on the backfilling strip mining technique, and the ...
Open Pit Mining | IntechOpen
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 …
(PDF) Experimental research on strata movement …
Backfill – strip mining is a partial backfilling mining technology that combines the advantages of strip mining and backfilling mining to control strata subsidence.
Experimental research on strata movement characteristics of …
In this study, similar material modeling is established to simulate strata movement characteristics of backfill–strip mining. The displacement and deformation …
Monitoring and measurement analysis of key indexes for the
The backfilling mining equipment consists . of a coal mining machine, scraper conveyor, ... in backfilled strip mining under the metropolitan district: case . study. Int J Geomech. 2018;18(7):102. 9.
Surface Coal Mining
Surface Coal Mining. The primary methods of surface coal mining used in Pennsylvania are: Strip Mining: Layers of soil and rock overburden are removed the coal exposed coal seam is excavated.The area is then backfilled, regraded, and replanted during the reclamation process.
Thermal recovery process of a backfilled open-pit in
Zhang et al. 2017).In particular, in strip coal-mine areas in cold regions, mining activities in combination with the overburden and rock dumping, construction of ground facilities and access roads, backfilling and other infrastructural operations have dramatic impacts on the thermal regimes of the underlying and surrounding
Surface Coal Mining
Surface Coal Mining. The primary methods of surface coal mining used in Pennsylvania are: Strip Mining: Layers of soil and rock overburden are removed the coal exposed …
Backfilling: Meaning & Importance | SafetyCulture
This means that backfilling is essential in the construction process, following the foundation's pouring and installing utility lines. Depending on the project, backfilling can be a simple or complex operation requiring special equipment. It is vital to ensure that the backfill material is compacted correctly to provide a stable foundation.
Design and application of solid, dense backfill advanced …
Detailed designs are presented for the backfilling mining hydraulic support, backfilling scraped conveyor, backfilling transfer conveyors, and other key backfilling …
(PDF) THE NATURE-LIKE EQUIPMENT FOR BACKFILLING THE MINE …
The priority task in the mineral industry is to increase the efficiency of the exploited and infrastructure, equipment, including the creation of transport systems that have high performance while reducing the cost of transporting mineral raw
Mine Tailings Disposal Methods
The Surface Mining Control and Reclamation Act of 1977 now specifically regulates this type of surface mining. As a result, standard contour strip mining methods are increasingly being modified to facilitate contour regrading to minimize overburden handling, and to contain overburden within the mined areas.
(PDF) THE NATURE-LIKE EQUIPMENT FOR …
The priority task in the mineral industry is to increase the efficiency of the exploited and infrastructure, equipment, including the creation of transport systems that have high performance while reducing the cost of …
Beginners' Guide to Cut and Fill Mining Method
Strip mining, unlike underground mining, performs mineral extraction without disturbing or removing the underlying rock. Most often, mining companies only …
Monitoring and measurement analysis of key indexes for the
1 INTRODUCTION. Building green mines are imperative for developing the green mining industry. 1, 2 It is necessary to realize the development of near-zero ecological damage and the use of near-zero pollutant emissions from the source of innovative mining methods. 3, 4 Mining, dressing, backfilling, and X 5 is typical …
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