Influence of coal mining on regional karst groundwater
The process of coal mining changes both the quantity of the karst springs and the quality of karst groundwater system because of overexploitation and overdrainage. In this paper, the influence of coal mining on the groundwater is analyzed from a In the paper, we study the influence of coal mining on the groundwater factors, from mine drainage and mining damage and solid waste etc. Based on the [PDF] The Influence of Coal Mining on Groundwater
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IJERPH Free Full-Text Influence of Coal Mining
Based on the distribution of historical buildings and the distribution and mining of coal resources in Shanxi Province, this paper concludes that the overlapping areas of coal mining and ancient wooden Coal is an important resource that has supported China’s economic development. This situation is expected to continue in the Sustainable Development of Resources and the
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Impact of coal mining on groundwater of Luohe Formation in
Another influence of underground mining is that the total flow from 34 springs in 8 southern coal mines of the area has decreased by 286.48 L/s with a rate of Underground coal mining exerts a far-reaching influence on land use change in coal resource-based cities in high ground water areas on a plain. China’s energy structure, dominated by coal, will not change IJERPH Free Full-Text Does Coal Mining Have
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Influence of Coal Mining Subsidence on Soil Physical and
PDF On Jan 1, 2021, 昭耀 颜 published Influence of Coal Mining Subsidence on Soil Physical and Chemical Properties Find, read and cite all the research you need on the ground subsidence caused by coal mining is influenced by the mining depth, thickness, mechanical properties of the overburden, mining method, mining intensity and miningInfluence of Coal Mining on Historical Buildings: Case
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Research on the Disaster-Inducing Mechanism of
In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of The key parameters used in CO 2 sequestration potential evaluation in this research are coal exploration engineering data, mining geology data, experimental test data, and the literature (Table 2). The mining depth is 200–1000 m; therefore, the buried depths of unexploited deep coal seams are ≥1000 m, and producing and abandoned mines areEvaluation of carbon dioxide geological sequestration potential in coal
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Impact of coal mining on groundwater of Luohe Formation in
4.1 Influence of coal mining on the groundwater level of the aquifer in Luohe Formation. The Luohe Formation groundwater is an important source of industrial and agricultural water in this area, which is related to the economic development of the area and the drinking water safety of residents. After nearly 20 years of high-intensityThe North China coalfield is bounded by the Yin Mountains Tectonic Belt, the Kunlun-Chaidamu-Qinling-Dabie Tectonic Zone to the south, the Helan Mountain Tectonic Belt to the west, and the Bo Sea and Yellow Sea to the east (Fig. 1).This paper takes a coal mine in Huaibei mining area as an example for studying the failure depth of Study on failure depth of coal seam floor in deep mining
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Influence of geological factors on coal permeability in the Sihe coal
Permeability of coal reservoirs influence the extraction of coal gas from coal seams. Twelve coal samples were collected at an anticline and a syncline of the No. 3 coal seam in the Sihe coal mine. Porosity, permeability, pore size, vitrinite reflectance, and liquid nitrogen adsorption of the samples were evaluated. Structural curvatures at the Abstract: In the process of deep coal seam mining, multiple factors affect the coal body damage-permeability characteristics.In order to reveal the evolution law of coal mining damage-permeability characteristics, the coal damage-permeability experiments under three mechanical paths of fixed confining pressure and increased axial pressure 加卸载煤体损伤-渗透特性影响因素实验研究 cumtb.edu.cn
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Experimental study on influence factors in damage
In the process of deep coal seam mining, multiple factors affect the coal body damage-permeability characteristics.In order to reveal the evolution law of coal mining damage-permeability characteristics, the coal damage-permeability experiments under three mechanical paths of fixed confining pressure and increased axial pressure (path 1), fixed Mine water cannot be discharged until it has been treated, which increases the cost of mining and causes environmental damage. This paper attempted to use sulfate mine water as a flame retardant material for the treatment of coal spontaneous combustion (CSC) in underground mines. The temperature-programed experimental device and gas Influence of High Sulfate Mine Water on Spontaneous Combustion of Coal
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A review of water rock interaction in underground coal mining
Underground coal mining has a strong disturbance on surrounding rock strata, causing inevitable water inflow into mined spaces, which seriously affects safety production. Mine water disaster is regarded as one of the most critical problems in coal mining and, thus, has been a research hotspot in coal mining. This review focuses on Influence of coal mining on the lower Yellow River region and related management countermeasures-- Taking Heze mining area as an example August 2022 MATEC Web of Conferences 363(4):01023(PDF) Influence of coal mining on the lower Yellow River
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Effect of Coal Mining on Soil Microorganisms from MDPI
The environmental changes caused by coal mining activities caused disturbances to the plant, soil, and microbial health in the mining area. Arbuscular mycorrhizal fungi (AMF) play an important role in the ecological restoration of mining areas. However, it is less understood how soil fungal communities with multiple functional The regional magmatic thermal process in a mining area not only affects the metamorphic degree of the coal seam, but also determines the development of coal pores and the occurrence of coal seam gas (Jiang et al. 2011; Zhao et al. 2020a; Zhao et al. 2020b; Wang et al. 2011; Wang et al. 2013; Fu et al. 2020; Xin et al. 2020).At the same Influence of deep magma-induced thermal effects on the
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The role of environmental factors in the composition of
Environmental pollution caused by the disposal of chemicals or toxins into the environment represent a great threat to amphibians. In this study, it was evaluated which environmental factors of ponds under the influence of coal-mining influence the composition of anuran species. For this purpose, anuran samples were performed in ponds in coal A study of the deformation of the surrounding rock and coal pillars near a fault under the influence of mining is conducted on a physical model for the design of coal pillars to support and maintain the roofs of adjacent fault roadways. This research is based on the 15101 mining face in the Baiyangling Coal Mine, Shanxi, China, and uses A physical model study of surrounding rock failure near a
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Prediction and zoning of the impact of underground coal mining
1. Introduction. Coal is China's main source of energy (Li et al., 2020; Wang et al., 2018).With the depletion of coal resources in eastern China, the focus of coal mining has shifted to the arid and semiarid regions in northwest China, where five major coal bases have been established, including the Ningdong base in Ningxia Province.1. Introduction. At present, shallow coal resources are gradually being exhausted, and the depth of coal mining operations continues to deepen. 1 Relevant statistics show that the coal mining depth in China extends deeper at a rate of 10–25 m/year, the maximum depth has reached 1501 m, and the maximum mining depth of foreign coal Mechanical properties and energy characteristics of coal at
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(PDF) Research on InSAR Monitoring Precision Analysis of Coal Mining
In this paper, in view of the scope of coal mining subsidence, the magnitude of subsidence deformation and the impact on buildings (structures), InSAR technology is selected for monitoring, timeAs one of the world’s five major coal production areas and a critical coal base in China, Shanxi Province contains coal in an area of 64,800 square kilometers, accounting for approximately 40% of the province’s total land area. There are 94 counties and districts in the province storing coal resources, and 91 counties have coal mines.Influence of Coal Mining on Historical Buildings: Case Study
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Influence of microstructure characteristics of deep mine coal
With the depletion of external resources, the mining depth of mines increases annually, and deep mining has become the most urgent problem mine production faces [].Given the high ground temperature and initial temperature of coal spontaneous combustion (CSC), the rise of surrounding rock temperature changes the thermal storage The distance between the water-bearing stratum and the mining stratum is the main factor influencing coal bed water-inrush. In the Mingshui Spring region, the main target of water supply is Ordovician karst water. Its karst process is well formed and the water inflow in a single mine is up to 7,000 m 3 /day.The influences of coal mining on the large karst springs in North China
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Full article: Impacts of longwall mining speeds on permeability
Although coal mining process continues after that, aquifer watertable gradually recovers on account of recharge from surface runoffs and melt water, and then returns to the peak value and maintains with coalface advancing 130 m beyond the borehole (on July 19, 2017). Hao D, Liu X, Miao K. 2021. Influence of mining speed and filling ratio on
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