(PDF) Water inrush characteristics and hazard …

The Yanqianshan iron mine is a large-scale open-pit mine located in Anshan city, Liaoning Pro vince, China (figure 1). The landform in the study ar ea is low mountain hilly land.

Stability analysis of open-pit mine slope considering …

This paper focuses on the West Open-Pit Mine in Fushun City as the research subject. By analyzing the distribution of abandoned mines and new energy sources in China and considering the peak regulation status of the power grid in Liaoning Province, demonstrating the impact of constructing a pumped-storage power station in the West Open-Pit Mine.

(PDF) Landscape Analysis and Ecological Risk Assessment

China's Fushun open-pit mine is the largest century-old coal mine in Asia. Large-scale mining and the use of coal has caused dramatic changes in the regional urban landscape pattern, seriously ...

Spatial distribution of mine areas in the Luanhe River Basin, …

Over time, mining in the Luanhe River Basin has formed many mine areas, which include land occupation of tailings ponds, waste rock piles, open pits, and mineral processing facilities [33].For example, Chengde, Hebei Province, produces approximately 200 million tons of V-Ti-Fe ore yearly, and 833 tailings ponds have been formed [48].However, the impact of …

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 ...

Extraction and spatiotemporal changes of open-pit …

Moreover, the 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 mining area …

Web pillar stability in open-pit highwall mining

The LDC100 highwall miner (Han et al. 2014) is used to extract the coal left under the west highwall of the open-pit mine.This is an unmanned mining machine with a production capacity of 60 t/h and a suited coal-rock hardness factor of f ≤ 2, which is applicable for recovery from lignite open-pit mines.The recovery chamber has a rectangular cross-section measuring …

Water inrush characteristics andhazardeffectsduringthe …

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.

Engineering geology and mechanism of multiple landslides …

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 engineering conditions in a Copper Mine …

The Influence of Rainfall on Landslide Stability of an …

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 ...

distribution of open-pit mining in liaoning province

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 ...

Deformation characteristics and mechanism of the landslide in West Open

A district covering 200 km² around the west open-pit mine in Fushun of Liaoning Province, a city located in Northeast China, is chosen as the study area. ... the distribution of dominant ...

Failure process and mechanism analysis of rock slope …

Study area. The Yanqianshan Iron Mine, which belongs to the Ansteel Group in China, is located in the Lishan District of Anshan city, Liaoning Province, approximately 21 km west of the city center (122°09′31″E; 41°04′00″N) (Fig. 2).The mine area is connected to the Anqian Secondary Highway, and there are several township-level roads within.

SHOWCASE MINE OF THE WEEK

Nanfen open pit iron mine, located in Nanfen district of the Liaoning province, China, is approximately 500m deep. It is one of the largest open-pit metal mines in China. Nanfen open pit mine is owned and operated by Benxi Iron and Steel Corporation (Benxi Steel). The mine produced more than 100 million tonnes of iron ore in 2011. It was the maximum iron ore output …

Numerical Simulation Analysis of NPR Anchorage …

1. Introduction. Under the blasting, rainfall, and human activity, the rock mass of slope weakens, causing a large number of engineering disasters [1 – 6].The disaster because of large deformation during a landslide in an open-pit mine not only causes huge economic losses but also seriously threatens the safety of life and property of the staff in the mine.

Extraction and spatiotemporal changes of open-pit mines

Qingzhou City is located at the border between the northern foot of the Yishan Mountain and the Lubei Plain in Shandong Province. It is a county-level city under the jurisdiction of Shandong Province and is managed by Weifang City. Qingzhou has a total area of ​​1569 km2, with both semi …

Stability Analysis of a Steep Rock Slope in a Large Open‐Pit …

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 direction. The …

Spatio-temporal distribution characteristics and influencing factors …

where n is the number of spatial units that need to be analyzed, x i and x j are the attribute values of the COVID-19 confirmed case in locations i and j, respectively, W ij is the spatial weight ...

Spatial-temporal distribution characteristics and influencing …

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 …

Investigation of Vegetation Changes in Different Mining …

The mine type and mining method used in six mining areas in Liaoning Province. The pixel-level change trend of vegetation from 2000 to 2019. Correlation between precipitation and annual maximum ...

Application of the arctangent function model in the …

Ground subsidence disasters are characterized by wide distribution, long duration, and high-intensity damage, which can cause serious damages to surface buildings, underground pipelines, aquifers, and so on. ... They used the model to investigate a collapsed pit in the Taihe coal mine in Fushun, Liaoning Province, China, and the area's mining ...

Influence of large open-pit mines on the construction and

Urban ecological resistance surfaces reached a maximum in the open-pit mining area, and 210 ecological corridors were estimated using the MCR model, of which 46 were important. ... and mine distribution maps. The Middle-Liaoning Ring and Shenyang–Jilin expressways pass through many important ecological corridors, and a first-class highway ...

Groundwater source identification based on principal …

This study aims to identify the groundwater source of the mine water inrush in the Dagushan iron mine, Liaoning province, in northeast China. The hydrogeochemical characteristics can reflect the process of water–rock interaction. Therefore, it can be used to identify the occurrence type of groundwater. In the face of complex hydrogeological conditions and data in …

Xuedong WANG | Bachelor of Engineering | Liaoning …

The fine-grained sand materials of an internal dumping site in the Yuanbaoshan open-pit mine of China were selected as the research object; the changes of soil strength and deformation ...

Web pillar stability in open-pit highwall mining

When highwall mining technology is applied to recover large amounts of residual coal left under the highwall of a big open-pit mine, a reasonable coal pillar width is required to ensure the ...

Model and criteria for slope monitoring and early warning in …

In open-pit mining operations, the continuous stripping, mining, and dumping processes inevitably lead to the formation of various slope shapes. These slopes are prone to …

Hydrochemical analysis and identification of open-pit …

Combined with hydrochemistry and multivariate statistical analysis, this paper systematically analyzed the hydraulic connections between aquifers and the complex seepage water sources …

Stability analysis of a deep and large open pit …

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 south, as shown in. Its lowest point is 339 …

Research on Stability of an Open-Pit Mine Dump with …

the Nanfen Open-Pit Iron Mine with a slope height of 300m as a case study, this paper first proposes a physical model similarity ratio according to the on-site engineering geological survey data.

Research on Stability of an Open‐Pit Mine Dump with Fiber …

Among many factors affecting the stability of the dump in the open-pit mine, heaped load and rainfall are the two most important factors. This experiment was divided into …