China coal mine death toll rises to six, 47 missing | Reuters
China's Inner Mongolia region ordered inspections at all of its open-pit mines on Friday, after at least six people were killed in a landslide at a coal mine, with 47 others still missing.
Research on production capacity planning method …
Introduction. China is heavily dependent on coal, and the proportion of coal in the energy structure will be continuously high 1, 2, 3. The open-pit coal mining has …
Effects of groundwater level on slope stability of open pit coal mine
The results of the slope stability analysis obtained the value of the safety factor (SF) for cross-section A-Aˈ 1.56 at the low wall and 1.42 at the high wall. In cross-section C-Cˈ, the SF ...
Using regression model to identify and evaluate heavy
The Wucaiwan open-pit coal mine area is located in Jimusar County in the eastern part of the Junggar Basin (44˚42'-44˚57' N, 89˚5'-89˚16' E), Xinjiang Province, the People's Republic of China ...
Multidimensional spatial monitoring of open pit …
The open pit mining industry is an important basic industry related to China's economic lifeline and energy security, China's open pit coal production has …
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China is the largest coal producer and consumer in the world, accounting for 47.30% of the total global coal production in 2019 . Open-pit coal mining is the main mining method in the world, and the proportion of open-pit coal mining in several other major coal mining countries (USA, Russia, India, etc.) except China is basically above …
Fushun transforms century-old coal mine into tourist site
The West Pit, once the largest open-pit coal mine in Asia, served as an economic engine for Fushun City, northeastern China's Liaoning Province. It fueled China's heavy industries, beginning in 1914 and peaking in the early 1960s, with annual coal production reaching 18 million tons. However, prosperity came at a price.
Preliminary analysis of the catastrophic February …
Qiang Xu, Huiyan Lu, Hao Fu, Pengyu Guo, Jianjun Zhao & Congwei Yu. 447 Accesses. Explore all metrics. Abstract. On February 22, 2023, a devastating …
Succession law and model of reconstructed soil quality in an open-pit …
The construction of the Pingshuo mining area was very important to China's coal industry base, where the Antaibao open-pit coal mine, Anjialing open-pit coal mine and East open-pit coal mine started operating in …
Ecological Reconstruction Research and Practice in the Large Open-Pit
Moreover, the safety factor of the open-pit mining is higher than that of the underground mining. Therefore, two thirds of the mines are mined by the open-pit mining mode. China is the world's largest coal producer and consumer. In 2015, the coal output in China is 3.75 billion tons, accounting for 47% of the world's total. However, most of ...
Stability analysis of a deep and large open pit based …
The coal mining began in 1901. since the founding of the People's Republic of China in 1949, over 280 million tons of coal and 530 million tons of oil shale have been mined, …
A multi-source remote sensing satellite view of the February …
Open-pit coal mine landslides are a common hazard, and a major mine landslide disaster occurred on February 22, 2023, at the Xinjing mine in Alxa Left Banner, China. In this study, multi-source remote sensing techniques, combined with actual environmental conditions, were used to conduct a preliminary investigation of the pre …
Effects of groundwater level on slope stability of open pit coal mine
The coal mine slopes in the Warukin formation consist mostly of sandstone and claystone. Moreover, those stones are part of sedimentary rocks. One of the factors that influence the instability of sedimentary rock slopes was the presence of the groundwater level because it can reduce the internal strength of the slope and increase …
Open-Pit Coal Mines: Implications for Green Mining
3 Haerwusu Open-Pit Coal Mine, China Shenhua Energy Co. Ltd., Ordos 017100, China * Correspondence: [email protected] (W.Z.); ... Qingxiang [40] analyzed dust distribution in a Chinese open-pit coal mine and found that PM concentration is nearly the same throughout the mine, but its concentration is very high around the equipment …
Ecological Reconstruction Research and Practice in the Large Open-Pit …
The soil of three soil depths (0–10, 10–20, and 20–30 cm) from natural land and three waste dumps with primary succession ages of 5 (R5), 10 (R10), and 20 (R20) years in the Heidaigou open-pit coal mine of Northwest China, were analyzed to examine changes in the soil properties and to highlight relationships between these properties.
The Thin Coal Seam (TCS) Mining Technology for Open Pit Mines in China
Coal seam that is thinner than a certain value is defined as thin coal seams (TCS). It commonly occurs in China as it covers 84.2% of the mining area. This situation is even severe in China's large surface coal mines, in which TCS accounts for 10–50% of the total reserve. Most TCS cannot be feasibly mined due to the working conditions of …
Stability evaluation and optimal excavated design of rock …
Rock slope deformation stability for Antaibao open pit coal mine under mining was analyzed using finite difference technique (FLAC 3D).Optimal excavated scheme with relatively steeper slope angle of 47° instead of 30° was successfully implemented at the west wall on the geological section 73200 of the mine area, where …
Multidimensional spatial monitoring of open pit mine dust …
The open pit mining industry is an important basic industry related to China's economic lifeline and energy security, China's open pit coal production has been maintaining good growth momentum.
(PDF) Development status of coal mining in China …
The results show that 87% of China's coal is mined by underground methods, with an average production capacity of 0.93 Mt/a per mine. Open pit mining accounts for 13%, with an average mine ...
Summarizing research on topsoil substitute material of open-pit coal mine
2. Engineering Research Center of Mining Environment & Ecological Safety of Ministry of Education, Beijing 100083, China. Address: Dongxiaolou, Yard 10, Xiaoguandongli, Andingmenwai Street, Chaoyang District, Beijing Code: 100029. Tel: 010-62213826 E-mail: zgkyzzs@163 Fax: China Mining Magazine Co., Ltd. ICP13051254-1 ...
Influence of Open-Pit Coal Mining on Ground Surface …
The Qinghai-Tibet Plateau (QTP) is the largest mid-to low latitude and high-altitude permafrost. Open-pit coal mining and other activities have caused serious damage to the alpine ecological environment and have accelerated the degradation of permafrost on the QTP. In this study, the influence of open-pit coal mining on the time series ground …
Research on the influence of vegetation restoration in loess open-pit …
The Antianbao open-pit coal mine, located in Shuozhou city, Shanxi Province (Fig. 2), is the largest and most modern coal production base in China (Bai et al., 2018b).The geographical coordinates of this open-pit coal mine are 112°19′-112°24′E and 39°30′-39°35′N, and the area is a typical ecologically fragile area of the Loess Plateau …
Vegetation coverage change and stability in large open-pit coal mine …
The Shendong coal base in China was selected as the study area consisting of 133 open-pit coal mines. Annual NDVI was generated using Landsat time-series data. The maps of vegetation destruction and restoration caused by surface mining during 1990–2021 were drawn with accuracies of 0.82 and 0.87, respectively.
Formation mechanism and dynamic process of open-pit coal mine
The Xinjing Open-Pit Coal Mine landslide is situated in the southern region of Helan Mountain (Fig. 1a). This region under experienced aulacogen deposition from the middle-late Proterozoic and to early Paleozoic periods, with the reactivation of ancient faults and rift development in the late Paleozoic, and reverse thrusting and folding uplift since …
(PDF) Open Pit Coal Mines
PDF | On Apr 23, 2019, Cai qing xiang and others published Open Pit Coal Mines | Find, read and cite all the research you need on ResearchGate. ... 2 Surface mining in China. 2.1 Output.
What Is Open-Pit Mining? Definition and …
Open-pit mining is a type of surface mining used to extract coal, gold, and other minerals. It creates immense water and air pollution, disfigures landscapes, and destroys habitats.
Monitoring and Analysis of the Collapse at Xinjing …
The collapse of open-pit coal mine slopes is a kind of severe geological hazard that may cause resource waste, economic loss, and casualties. On 22 February …
Tracking the Vegetation Change Trajectory over Large-Surface Coal …
The annual production of the Heidaigou open-pit coal mine reached 25 Mt/a in 2006 after capacity expansion and renovation, making it the largest open-pit coal mine in China . The secondary expansion and renovation project of Heidaigou Coal Mine began construction in June 2011, and the raw coal production capacity was increased to 34 Mt/a.
Death toll rises in China mine collapse as rescue …
CNN —. Search and rescue operations continued in northern China Thursday, after a collapsed coal mine left at least five dead and dozens trapped. Chinese state media reported that six were ...
Polycyclic aromatic hydrocarbons in the soil profiles (0–100 …
Mining and industrial activities are the primary sources of soil pollution in the open-pit coal mine. The concentrations of PAHs in 11 sampling sites in the industrial district and 9 sampling sites with different land use types in Pingshuo open-pit coal mine, China, were measured to investigate the distributions of PAHs and possible sources in soil profiles …