INICIO / coal mining equipment to detect underground seam

coal mining equipment to detect underground seam

Research and practice of intelligent coal mine technology

2022年4月15日 Given the coal resources in China, underground mining is the main method of extraction, with open-pit mining accounting for less than 15% of coal production. Scientific research has enabled underground mining to shift from mechanized mining to automated

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Overview on the application of geophysics in coal mining

2013年7月30日 The range of applications in both surface and underground mining is extensive. Applications include coal seam mapping and geological fault detection,

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Automated coal seam detection using a modulated

2015年4月1日 Consistent top-of-coal-seam detection under field conditions without geophysical data. • Proposed measure uses a change in power ratio to infer a transition

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Coal mining - Surface, Contour, and Highwall

The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous

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Coal mining - Prospecting, Mapping, Photography, Drilling

The fundamental objective of coal prospecting is to discover coal resources through a search. In areas where coal mining has not been previously practiced, the search

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Coal mining - Underground mining Britannica

In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata.

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Use of ground penetrating radar in

2000年4月1日 The main goal of the work was to determine whether a radar-based system could be used to detect coal-rock interfaces in order to establish a suitable mining horizon within the coal seam.

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Coal seam mapping by underground in-seam seismic

1987年11月1日 Underground techniques for identifying these anomalies ahead of mining are now available. The two most promising are longhole drilling and underground in

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Analysis and Application of Coal Seam Seismic Waves for

2022年1月31日 Analysis and Application of Coal Seam Seismic Waves for detection of Abandoned Mines Daniel J. Yancey ABSTRACT It is not uncommon for underground

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coal mining equipment to detect underground seam

coal mining machinery to detect underground seam. coal mining equipment to detect underground seam. Coal Mining Machinery To Detect Underground Seam bodies and

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Research and practice of intelligent coal mine technology

2022年4月15日 This study considered the role of coal as China’s basic energy source and examines the development of the coal industry. We focused on the intelligent development of coal mines, and introduced the “Chinese mode” of intelligent mining in underground coal mines, which uses complete sets of technical equipment to propose classification and

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Overview on the application of geophysics in coal mining

2013年7月30日 The range of applications in both surface and underground mining is extensive. Applications include coal seam mapping and geological fault detection, lithological mapping, geotechnical evaluation, assessment of the rock mass response to mining, detection of voids, location of trapped miners and guidance of drills and mining equipment.

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Overlying strata movement with ground penetrating radar

2019年8月28日 The 5 # coal seam is in the fracture zone above the gobs of four coal seams, and the caved zone of lower coal seam develops to fine sandstone of the 5 # coal seam floor. Moreover, the detection accuracy of close-multiple coal seam mining can reach to 3 m, proposing an advanced detection method to determine the overlying strata

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An Accurate Digital Subsidence Model for Deformation

2022年1月17日 Coal mine surface subsidence detection determines the damage degree of coal mining, which is of great importance for the mitigation of hazards and property loss. Therefore, it is very important to detect deformation during coal mining. Currently, there are many methods used to detect deformations in coal mining areas. However, with most of

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Using an Azimuth Electromagnetic Wave Imaging Method

2020年5月28日 Also, the basic parameter selections of the proposed logging-while-drilling azimuth electromagnetic wave logging instrument were determined to be suitable for underground coal-mining purposes. It was also found that the symmetric compensation of the instrument was sensitive to the interface responses, and the anti-symmetric

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Coal mining - Surface, Contour, and Highwall

The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous

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Coal mining - Prospecting, Mapping, Photography, Drilling

The fundamental objective of coal prospecting is to discover coal resources through a search. In areas where coal mining has not been previously practiced, the search process should result in obtaining coal samples that give reasonable evidence of the existence of a coal seam. Once a seam has been discovered, considerable further work is necessary in

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Average-DInSAR method for unstable escarpments

2021年12月1日 Furthermore, the ground deformation induced by underground coal mining is commonly more than decimeters, thus TS-InSAR totally lose the measure value as the constraint limits of no measure unambiguously phase differences ＞π which corresponds to LOS deformation ＞λ/4, and the displacement of landslide induced by underground coal

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Near-surface Interface Detection for Coal Mining

2005年7月27日 One of the current challenges with automating underground coal mining machinery is measuring and maintaining a coal mining horizon [1]. The coal mining horizon is the horizontal path the machinery follows through the undulating coal seam during the mining operation. A thin layer of low-quality coal is typically found between the actual

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Analysis and Application of Coal Seam Seismic Waves for

2022年1月31日 Analysis and Application of Coal Seam Seismic Waves for detection of Abandoned Mines Daniel J. Yancey ... It is not uncommon for underground coal mining to be conducted in the proximity of aban- ... equipment, and production from inundation or explosive gas release. The mining disaster at Quecreek, PA in 2002, is a prime example.

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An Accurate Digital Subsidence Model for Deformation

2022年1月17日 Coal mine surface subsidence detection determines the damage degree of coal mining, which is of great importance for the mitigation of hazards and property loss. Therefore, it is very important to detect deformation during coal mining. Currently, there are many methods used to detect deformations in coal mining areas. However, with most of

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Coal mining - Prospecting, Mapping, Photography, Drilling

The fundamental objective of coal prospecting is to discover coal resources through a search. In areas where coal mining has not been previously practiced, the search process should result in obtaining coal samples that give reasonable evidence of the existence of a coal seam. Once a seam has been discovered, considerable further work is necessary in

اObtener precio

Average-DInSAR method for unstable escarpments

2021年12月1日 Furthermore, the ground deformation induced by underground coal mining is commonly more than decimeters, thus TS-InSAR totally lose the measure value as the constraint limits of no measure unambiguously phase differences ＞π which corresponds to LOS deformation ＞λ/4, and the displacement of landslide induced by underground coal

اObtener precio

Near-surface Interface Detection for Coal Mining

2005年7月27日 One of the current challenges with automating underground coal mining machinery is measuring and maintaining a coal mining horizon [1]. The coal mining horizon is the horizontal path the machinery follows through the undulating coal seam during the mining operation. A thin layer of low-quality coal is typically found between the actual

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Applied Sciences Free Full-Text Detection of Coal Bust

2023年5月18日 Practice and theory research proved the “square effect” during longwall mining with hard–thick strata lying on the coal seam, which could cause severe underground pressure and even dynamic disasters, such as coal burst; therefore, it became a key area and stage that need special attention. The combined active–passive seismic computed

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Automation in U.S. longwall coal mining: A state-of-the-art

2019年3月1日 INS has been widely used in Australia coal industry since 2014, but it was only recently introduced into US longwall mining and only one mine has adopted so far in early. 4.1.3. Automation of AFC. The AFC drive system requires static and dynamic power reserves, start-up against high loads and handling of slack chain.

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Image Mining for Intelligent Autonomous Coal Mining

2013年4月19日 A crucial aspect of the the coal-mining automation process lies in the proper detection of the coal-bed boundary, which is depicted in Figure 5, leftmost image. Knowing the exact position of this boundary at each point in space is su–cient to estimate the exact position of the coal seam (based on geological domain data

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(PDF) Automation of underground coal mines

2016年5月1日 To achieve the future production target, coal mining industry has to improve its productivity and safety by enhancing mechanization 3 , increasing on-line monitoring 4 , implementing wireless ...

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Method for prevention and control of spontaneous

2017年9月1日 Mechanism of coal seam spontaneous combustion is as same as that of a general spontaneous combustion, which will require oxygen. The oxygen, provided by air leakage, is influenced by extraction and other human activities [6].Meanwhile, fire extinguishment for coal seam spontaneous combustion is quite difficult as it is not easy

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Analysis and Application of Coal Seam Seismic Waves for

2022年1月31日 Analysis and Application of Coal Seam Seismic Waves for detection of Abandoned Mines Daniel J. Yancey ... It is not uncommon for underground coal mining to be conducted in the proximity of aban- ... equipment, and production from inundation or explosive gas release. The mining disaster at Quecreek, PA in 2002, is a prime example.

اObtener precio

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