Gold Mine Engineering In China
Mineral Resource Science in China: Review and perspective
ResultThe understanding of the formation, successful exploration, and economic exploration of mineral resources is of critical importance to China's modernization. Here we present an overview on current states and major progresses of mineral resource science in China. 3.1. Metallogenic theory and metallogenic …
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Water Resources Utilization and Protection in the Coal …
ResultThese methods have been widely applied for mine water utilization in coal mines in northern China 23,24,25,26, including water conservation mining in Shennan Mining Area, Shaanxi 27, underground ...
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Views & CommentsKey Engineering Technologies to Achieve …
ResultAccording to statistics, the mining depth of more than one-third of China's underground metal mines will exceed 1000 m over the next decade, and the maximum mining depth will range from 2000 to 3000 m.
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A systematic review of paste technology in metal mines for …
ResultCurrently, glue powder has a positive development potential and has been promoted and applied in a certain range of iron mines in China, such as the Laixin iron mine, Xiaoguanzhuang iron mine, and Beiminghe iron mine (Deng et al., 2016, Quan and Wang, 2014, Zhang, 2013). 4.5.4. Admixtures for the filling paste
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Construction Practices of Green Mines in China
ResultTo maintain high-level economic development, protect the ecological environment, and achieve carbon peaking and carbon neutrality goals, the construction of green mines has become a critical issue in China. In this study, the importance of mineral resources to human society is discussed, and the …
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Estimation of support requirement for a deep shaft at the …
ResultA deep shaft project (denoted XZJ) is being carried out to provide a central ore-lifting facility for various mining areas at the Xincheng gold mine, located in northeastern Laizhou, Yantai, Shandong Province, China (Fig. 1).The shaft is required to have a circular cross section with a finished diameter of 6.7 m and a …
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Latest progress of soft rock mechanics and engineering in China
ResultShale samples were collected from Daqiang coal mine at Shenyang, Liaoning Province, China, at the depths of 1283 m–1305 m. All shale samples were obtained into a uniform size of ϕ55 mm × 110 mm. Basic physical parameters were determined according to Standard for Tests Method of Engineering Rock Masses …
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Five largest coal mines in China in 2020
ResultHere are the five largest coal mines by production in China, according to GlobalData's mining database. 1. Daliuta-Huojitu Mine. The Daliuta-Huojitu Mine is a underground mine located in Shaanxi. It is owned by China Shenhua Energy and produced an estimated 37.552 MTPA of coal in 2020. The mine will operate until …
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Practical Experience in Large-Scale Development of Zijinshan …
ResultThe Zijinshan gold-copper mine, in spite of the low-grade nature of the ore, has become one of the largest production-scale and most profitable non …
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The Recent Progress China Has Made in Green Mine …
Result2. Mining Groundwater Pollution. China has achieved rapid economic growth over 30 years, especially in the mining industry (both coal and metal mines) [16,17].While China is the world's third-largest coal producer, rapid industrialization and urban expansion have now caused considerable land-use intensification …
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(PDF) Monitoring and statistical analysis of mine
ResultThe subsidence power-law exponent for these three mines ranged from 1.20 to 1.67, 1.49 to 1.94, and 1.01 to 1.17, with mean values of 1.46, 1.76, and 1.09, respectively. The power-law scaling for ...
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A review of mining-induced seismicity in China
ResultAccumulated number of mines in China with rockburst hazard. 2.3. Intensity and frequencyIn total, 27 mines (22 in coalmines, three in salt mines, ... Hence, it is a logical choice to combine mining engineering with geophysics for the research and mitigation of the hazard. Many co-investigations involving …
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A review of dust control/removal methods in metal mines in China
Result2. Methods. In this review, papers published in relevant databases in the past few decades were carefully searched, for example, China National Knowledge Infrastructure (CNKI), Google Scholar, Baidu, and Web of Science [25].This review focuses on the research and development of dust control …
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Special Issue "Deep Mining" | Rock Mechanics and Rock Engineering
ResultThe gold mines in India will enter depths of 2000–3500 m, as for a gold mine in the Kolar area at 3260 m depth. Russian metal mines will also enter depth levels between 2000 and 2500 m. As shown in Fig. 1, taking China as an example, in the next 10–15 years, 50% of iron ore resources, 33% of non-ferrous …
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Research progress in coal and gas co-mining modes in China
Result1 THE CURRENT SITUATION OF COAL AND COALBED METHANE DEVELOPMENT IN CHINA. According to recent statistics, 1 the reserves of coal resources in China are approximately 249.23 billion tons, and the reserves of coalbed methane (CBM) resources, with a depth of 2000 m, are approximately …
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Mining-induced geo-hazards with environmental protection …
ResultThere are abundant mineral resources in Yunnan Province, which is located in the southwestern part of China, due to its unique geological conditions. The distribution of minerals is related to geological formations and past tectonic movements. The mineral resources extracted in Yunnan Province constitute 83 % …
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IJERPH | Free Full-Text | The Recent Progress China Has …
ResultThe Suichang gold mine is the oldest mine in China, although 800 years ago, there was no definition of "green mine" in China. Looking back from now, we will find that the Suichang gold mine using non-blasting mining method corresponds to "scientific mining methods", which is one of the key elements of …
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The history and economics of gold mining in China
ResultChina ranks as the largest gold producer in the world. •. Major gold deposits distributed along several belts. •. Dawn of yellow metal in China in third …
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Key engineering technologies to achieve green, intelligent, …
ResultDOI: 10.1016/j.eng.2021.07.010 Corpus ID: 238643814; Key engineering technologies to achieve green, intelligent, and sustainable development of deep metal mines in china @article{Cai2021KeyET, title={Key engineering technologies to achieve green, intelligent, and sustainable development of deep metal mines in …
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Key engineering technologies to achieve green, intelligent, …
ResultKey engineering technologies to achieve green, intelligent, and sustainable development of deep metal mines in china. M. Cai, Peng Li, +1 …
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Research on Efficient Construction Paths for …
ResultThe intelligent transformation of coal mines is an inevitable choice to promote the green transformation of energy and to achieve safety and efficiency in the industry. Exploring the path …
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In-situ stress measurements and stress distribution
ResultResults and analyses of in-situ stress measurements in underground coal mines in China. Over the past 8 years, using the small diameter borehole hydraulic fracturing stress measurement equipment, in-situ stress measurements were conducted at 204 test sites in 49 coal mines, located in 13 coal districts …
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Properties and Application of Backfill Materials in Coal Mines in China
ResultCoal is the basic resource underpinning energy generation in China, however, constant, large-scale mining of coal results in many problems such as ecological destruction of mining areas. As a result, backfilling of solid waste underground is proposed to control strata and surface subsidence and to protect …
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Progress and prospects of mining with backfill in …
ResultMining is the foundation of modern industrial development. In the context of the "carbon peaking and carbon neutrality" era, countries have put forward the development …
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The history and economics of gold mining in China
ResultIn 2011 the gross industrial output of gold enterprise in China reached 194.239 billion Yuan, a hike of 22.84%, with profits at 23.72 billion Yuan (hike of 40.95%). The output value of gold mining and non-gold mining industry increased in different speeds.
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The current situation and prevention and control
ResultAt present, there are 47 coal mines that have mining depths that exceed 1000 m in China, and these mines are mainly distributed in 8 provinces, such as Shandong, Jiangsu, Anhui, Henan, Hebei, Jilin, Liaoning and Heilongjiang. The total coal capacity is 94.560 million tons, and it accounts for 2.5% of total coal …
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A new safety supervision model for underground coal mines in China
ResultYaqin Wu a School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), ... In order to prevent the accidents in underground coal mines, an index system for safety supervision ability evaluation is established in the present paper. The index …
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Developments and prospects of microseismic …
Resultengineering [25−27] and Sichuan-Tibet railway [28]. To reduce the occurrence of accidents, the safety monitoring system was implemented by the Government of China in all underground mines since 2010. Microseismic monitoring system has been employed by more than 40 underground metal mines in China by the end of …
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Engineering geology and ground collapse mechanism in the Chengchao …
ResultEngineering geology and ground collapse mechanism in the Chengchao Iron-ore Mine in China. Author links open overlay panel Kaizong Xia a b, Congxin Chen a b, ... Investigation of catastrophic ground collapse in Xingtai gypsum mines in China. Int. J. Rock Mech. Min. Sci., 45 (8) (2008), pp. 1480 …
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Summary of technology for a comprehensive geophysical
ResultSummary of technology for a comprehensive geophysical exploration of gold mine in North China Craton. Progress. Published: 11 August 2021. Volume …
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