Landslides are a commonly occurring hazard in open-pit mines. Despite extensive research on this phenomenon, there is still a lack of understanding of the mechanism involved in landslides in open-pit mines in certain geologic settings. To reveal the mechanisms of multiple landslides in large open-pit mines, the geological …
Open-pit mining is a type of surface mining used to extract coal, gold, and other minerals. ... in 1942 a mixture of gas and coal dust exploded in the Honkeiko coal mine near Benxi in the Liaoning ...
To understand the concentration and distribution of PM2.5 and PM10 in open-pit mines, a beta-ray particle monitor and some laser monitors were arranged in Haerwusu Surface Coal Mine (HSCM), Inner Mongolia, China. A fluent simulation was made to study the dust move in the pit and escape rate and time out of the pit. The …
tiguous distribution. From 1985 to 2020, the open-pit mining area expanded to more than 10 times its original size at a rate of 0.5 km2/year. In 2015, this area reached ... (2020) studied an open-pit mining area in Dalian, Liaoning Province, China. Vorovencii (2021) implemented change detection of the mining zone in Jiu Valley, Romania, during ...
The Pingshuo mining area is located in the Pinglu District of Shuozhou City, Shanxi Province, China. It is one of the five largest open pit mining areas in China.
Restoration of the degraded ecosystem is a global priority for achieving sustainable development. Although increasing ecosystem service is an important goal of ecological restoration, it is rarely used to inform mine reclamation. This study proposed a reclamation strategy that incorporated land suitability analysis and ecosystem service evaluation …
Section snippets General introduction to the project. Nanfen Open Pit Mine is located in the south of Benxi, Liaoning province, 7.5 km from Nanfen town, Nanfen district of Benxi, 6.5 km from Nanfen concentrator, which has s railway special line connected with mine area.Geography coordinate: 123.50° east longitude and 41.07° …
China's Fushun open-pit mine is located in the southwest of Fushun City, Liaoning Province, China. It is the largest century-old coal mine in Asia. Mining activities in the past 100 years have caused serious …
The total amount of water flowing to open-pit from surrounding areas is 2 477.8×10 4 m 3 /a, mainly from the lateral recharge of Hunhe River through the Quaternary aquifer in the north slope of the open-pit, and atmospheric precipitation recharge, among which the water inflow from Hunhe River is about 1115.7×10 4 m 3 /a, accounting for …
Groundwater distribution influenced by mining activities is hard to be tracked due to the lack of accurate and real-time monitoring data. To address the groundwater dynamic change data under the mining conditions of open-pit coal mines, a three-dimensional automatic observation network of groundwater was constructed, and this observation …
Open-pit mining is an important form of coal mining in China, and its damage to the ecological environment is particularly obvious in alpine regions. The ecological restoration of alpine open-pit coal mines faces severe challenges, and its restoration effect will directly affect the ecological security of China. Meanwhile, …
The Haizhou open-pit coal mine was the largest mechanized open pit coal mine in Asia. This mine was closed down due to resource depletion in July 2005 and has become a national mine park.
The rock slope of the open-pit mine is located in Fengcheng City, Liaoning Province (Figure 1). The overall distribution of slope is along the east and west …
Spatial distribution of mine areas in the Luanhe River Basin, China: Clustering implications ... The 147 m below sea level is situated at an iron open-pit mining (iron, Malanzhuang Town, Hebei Province, 40°14′ N, 118°56′ E). ... (0.96 km 2) situated in Liaoning Province. No mines are present in Inner Mongolia. The county-level ...
The Influence of Rainfall on Landslide Stability of an Open-Pit Mine: The Case of Haizhou Open-Pit Mine An Bo . Zhu Chun . Liu Kuiming . Li Sitong . ... southeastern Fuxin city of Liaoning province, which used to be one of the largest open-pit coal mines in ... Fig. 4 Distribution characteristics of main faults 123 3370 Geotech Geol Eng (2019 ...
2.2. Deposit geology. Qidashan Iron Mine is one of the most important iron resource bases for An Steel Co., meanwhile it is also the second largest BIF-hosted high-grade iron ore deposit in Anshan-Benxi area (Li H, Yang, et al. Citation 2015).The open-pit mine was composed of two mining districts: the northern mining district includes five …
In December 2019, a case of typical pneumonia [novel coronavirus disease 2019 (COVID-19)] was found in Wuhan, Hubei province in China 1,2.COVID-19 is transmitted in various ways, mainly ...
The Fushun coalfield is located in Liaoning Province 45 km east of Shenyang in a relatively small east-west-trending exposure of Mesozoic and Cenozoic rocks surrounded by Precambrian terrane. ... has both open pit and underground mines. The largest operation is the West Open Pit mine, which measures 2.0 km wide, 6.6 km long, and …
A landslide occurred on November 24, 2019, in weathered phyllite at the western longwall of Yabaling open pit of Anqian iron mine in Anshan City, Liaoning Province, China.
Open-pit mining is one of the main exploiting methods for solid mineral resources. After more than 100 years of high-intensity development, there are a large number of abandoned open-pit mines and ...
Open-pit mining is the main method to obtain ore raw materials 1. e excavation of pits and underground ... Records of Liaoning Province 43, and combined with the research from Guo ...
The Yanqianshan iron mine is a large-scale open-pit mine located in Anshan city, Liaoning Province, China (figure 1). The landform in the study area is low mountain hilly land. The study area is surrounded by mountains with an elevation of 210–386 m to the south, east and north, while the area
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 ...
The results show that, first, critical ecosystem service areas influenced by large open-pit mines in Fushun City are located in the Dongzhou and northern …
1. Introduction. As the mining method is turning from open pit mining to sag by mining, vertical height of open-pit mine slope continues to increase, the slope deformation and failure mode has close relationship with regional geological structure characteristics and the rock mass structure feature, the stability is influenced largely by …
The Fushun open-pit mine is in the southwest of Fushun City, Liaoning Province, China . The study area is 1865.61 km 2, and the area of Fushun East–West Open-pit Mine is 13.2 km 2. Its mining scale is very large, and it is known as "the largest open-pit mine in Asia" .
open-pit mining areas in Qingzhou gradually expanded from a scattered, point-like distribution to a large, con-tiguous distribution. From 1985 to 2020, the open-pit …
from Fushun City, Liaoning Province, China Lei Nie1 • Hongfei Wang1 • Yan Xu1 Received: 4 March 2016/Accepted: 23 June 2016/Published online: 6 July 2016 Springer-Verlag Berlin Heidelberg 2016 Abstract Ground subsidence disasters are characterized by wide distribution, long duration, and high-intensity damage, which can cause serious ...
Fushun west open-pit mine, which has a history of 100 years of mining, entered the pit-closing period. Due to the exploitation of resources, the west open-pit mine was threatened by geological disasters for a long time. In order to summarize the occurrence regularity of geological disasters in the west open-pit mine, ensure the safety of production and life …
The Fushun West Open-pit Mine is the largest open pit in Asia, located downtown Fushun city, Liaoning Province, China. The pit is around 6.6 km long from east to west, and 2.2 km wide from north to …
An extra-large landslide occurred on June 19, 2021, on the footwall slope of the Nanfen Open-pit Iron Mine in Liaoning Province, China, with a volume of approximately 1.2×10 7 m 3.To elucidate the causative factors, development process, and destructive mechanisms of this catastrophic landslide, comprehensive field tests, investigations, and …
: Mining can provide necessary mineral resources for humans. However, mining activities may cause damage to the surrounding ecology and environment. Vegetation change analysis is a key tool for evaluating damage to ecology and the environment. Liaoning is one of the major mining provinces in China, with rich mineral resources and long-term, …
In this paper, the sources of seepage water in an open-pit mine are studied by combining the analysis of hydrochemical characteristics and multivariate statistics.
