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métallogénie des gisements de minerai de fer ppt

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métallogénie des gisements de minerai de fer ppt

  • Coalbed methane resources and reservoir characteristics

    2017.1.5  coal seam in Jiaozuo coalfield is in the range of (0.513–3.478) ×108 m3/km2, with an average value of 1.805×108 m3/km2. Based on the CBM resource

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  • Architecture, stress state and permeability of a fault zone in ...

    2018.10.1  The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view

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  • Research on the effects of coal mining on the karst

    2019.7.18  Jiaozuo city, a typical coal mining industry city in China, is in the transition zone of Taihang Mountains and north Henan plain (Fig. 1 ). In addition, Jiaozuo is an

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  • Coalbed Methane Resources and Reservoir Characteristics of NO. II1 Coal ...

    2009.10.1  Based on the CBM resource investigation and reservoir evaluation, the most prospective target zones for CBM production in Jiaozuo coalfield include

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  • Architecture, stress state and permeability of a fault zone in ...

    2018.9.1  The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view of

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  • Adsorption Science Technology Investigation ofpore

    2019.8.29  from the Jiulishan coal mine and Zhongmacun coal mine in Jiaozuo, China. The location of the investigated coal mines and the structural outline of the Jiaozuo

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  • Location of Jiulishan coal mine. Download Scientific Diagram

    Download scientific diagram Location of Jiulishan coal mine. from publication: Comprehensive Monitoring Research on the Effect of Roof Cutting and Pressure

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  • Jiaozuo Coal Mining, Heavy Industry Manufacturing

    Jiaozuo, city, northern Henan sheng (province), China. It lies in the foothills at the southern end of the Taihang Mountains, to the west of Xinxiang, in a mining district. Jiaozuo was

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  • Applied Sciences Free Full-Text Research on a Coal Seam

    2023.7.28  Based on an analysis of the gas geological conditions and distribution patterns in the 15th mining area of the Jiulishan Coal Mine in Henan Province, China, we

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  • Architecture, stress state and permeability of a fault zone in ...

    2018.10.1  The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view of coal mining safety, including its architecture, stress and permeability features and implication for coal and gas outburst. 10 boreholes have been drilled for formation testing as well as

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  • Numerical Simulation on Water Inrush from floor during

    Confined Aquifer in Jiulishan Coal Mine . Tan. ... Henan Polytechnic university, JiaoZuo 454000 China; ... MPa in Jiaozuo and other coal mine regions [1].

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  • Variation features of unfrozen water content of water-saturated coal ...

    2021.7.28  The coal samples used in the experiment were anthracite coals from the No. II-1 coal seam, Jiulishan Coal Mine, Jiaozuo, China. Six standard cylindrical coal samples with dimensions of Φ25 mm × ...

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  • Research on the effects of coal mining on the karst

    2019.7.18  Jiaozuo mine, which is located at the middle latitudes area of Henan province, China, is the typical mining area of the coalfields with the total production of raw coal of over 200 million tons (Fig. 2). After decades of exploitation, Jiaozuo mining area has become one of the old mining areas in China due to its increasingly exhausted coal ...

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  • Applied Sciences Free Full-Text Research on a Coal Seam

    2023.7.28  The Jiulishan Mine is situated in the heart of the Jiaozuo mining area, approximately 18 km from Jiaozuo city. The mine spans an area of approximately 18.7 km², with a north-south width of approximately 3.4 km and an east-west length of approximately 5.5 km. Its construction began in July 1970, and it commenced simple production in April

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  • Application of integrated drilling and stamping technology

    2022.2.18  In the Jiulishan Mine in Henan, Jiaozuo Mining mainly mines the Shanxi Formation II-1 coal seam, the single thick coal seam is difficult to extract and has poor coal seam permeability. Hydraulic punching technology was implemented in the bottom extraction lane to solve low permeability coal seam gas extraction.

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  • (PDF) Numerical Simulation on Water Inrush from floor during Mining ...

    2016.8.4  Based on the geological and mining conditions of 15031 working face in Jiulishan coalmine,China, the failure-deformation law of floor and the formation of water inrush channels during mining above ...

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  • Numerical Simulation on Water Inrush from floor during

    Confined Aquifer in Jiulishan Coal Mine . Tan. ... Henan Polytechnic university, JiaoZuo 454000 China; ... MPa in Jiaozuo and other coal mine regions [1].

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  • Comprehensive Monitoring Research on the Effect of

    2022.5.29  shown in Figure 1, the Jiulishan coal mine is situated north-east of Jiaozuo City, Henan Province, China, which is approximately 22.0km from the center of Jiaozuo City. The 14141 longwall panel with an average depth of 350m is located in coal seam 2 of the first mining area in the Jiulishan coal mine, Henan Province, China. The structure

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  • A dynamic evolution model of coal permeability during

    Deep Mines, Henan Polytechnic University, Jiaozuo, Henan 454003, China Cite this: RSC Adv.,2021,11,17249 Received 2nd April 2021 Accepted 4th May 2021 DOI: 10.1039/d1ra02605d ... Jiulishan Coal Mine, Henan Province, China. Based on BET (low temperature nitrogen adsorption) and industrial analysis ...

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  • Comprehensive Monitoring Research on the Effect

    2021.9.17  As shown in Figure 1, the Jiulishan coal mine is situated northeast of Jiaozuo City, Henan Province, China, which is approximately 22.0 km from the center of Jiaozuo City. The 14141 longwall panel with

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  • Measurement of pressure drop in drainage boreholes and its

    2013.11.23  The Jiaozuo Coalfield is located in northern Henan Province in China. The Jiulishan Mine is located in the central part of the Jiaozuo Coalfield and spans an area of 18.6 km 2.The No. 2 1 coal seam is the primary mined layer in the Jiulishan Mine and is characterized by a high danger of coal and gas outbursts. More than 60 sudden coal and

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  • Groundwater Hydrogeochemical Mechanisms and the Connectivity

    2020.11.11  The Jiaozuo coal mining district has complicated hydro- ... Fig. 1 Location map of the study area and sampling sites. ... The Jiulishan, Fenghualing, and Mafangquan Faults ...

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  • Intensity analysis of frictional heat source during core tube

    2023.11.16  The coal samples used in the experiment were chosen from the Jiulishan Coal Mine located in Jiaozuo City, Henan Province. The physical properties of the coal samples were afterwards measured. To assure the credibility of the experimental findings, the coal samples used in the experiment were obtained from the working face numbered

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  • Coalbed Methane Resources and Reservoir Characteristics of

    2009.10.1  The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view of coal mining safety, including its ...

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  • Jiaozuo Henan: The Birthplace of Tai Chi - TravelChinaGuide

    2021.4.15  Jiaozuo is the birthplace of Tai Chi, which is a kind of traditional Chinese martial art, featuring slow movements and deep breaths. It can be practiced not only for sports but also for physical fitness. After more than 300 years of development, it has been widely spread in more than 150 countries and regions around the world, with over 300 ...

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  • Research on the Development of Hydraulic Flushing

    caverning technology was first introduced for coal mining in the Soviet Union, Poland, and China as early as the 1950s. In China, this technology was applied as a new outburst prevention technology for coal gallery excavation and rock cross-cut coal uncovering in Beipiao, Jiaozuo, and Nantong mining areas, where coal and gas outbursts were quite

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  • Coalbed methane resources and reservoir characteristics

    2017.1.5  coal seam in Jiaozuo coalfield is in the range of (0.513–3.478) ×108 m3/km2, with an average value of 1.805×108 m3/km2. Based on the CBM resource investigation and reservoir evaluation, the most prospective target zones for CBM production in Jiaozuo coalfield include Guhanshan coal mine, Jiulishan coal mine and the west part

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  • Adsorption Science Technology Investigation ofpore

    2019.8.29  The Jiaozuo coalfield is located in Henan Province, China. The Jiaozuo coal-field, which contains complex geological structures and abundant tectonic coal with a high gas content, high gas pressure, and low permeability, is one of the most notable coalfields in terms ... The Jiulishan coal mine is a monoclinic structure that runs toward

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  • Geothermal Water at a Coal Mine: From Risk to Resource

    2017.8.29  Jiulishan thrust fault (China Pingmei Shenma Group 2013), with mine adits aligned in a northwest-southeast pattern along the southwest flank of the Likou Syncline and the northeast flank of the Jiulishan fault (Fig. 1). The No. 8 mine, within the Pingdingshan unit, has operated for 33 years and is about 12 km from Pingdingshan City

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  • 采煤沉陷坡面土壤氮磷钾养分有效性的空间变异性

    2020.7.20  mining areas. 【Method】 The cultivated land and forest land in a coal mining subsidence, low in phreatic water level and typical. Rehabilitation Provincial Key Laboratory Breeding Base Open Topic of Henan Province in China(No. KF2014-05) 作者简介:孟红旗(1979—),男,河南焦作人,博士,副教授,主要从事土壤环境化学研究。.

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  • Effect of Mixed Acid Fluid on the Pore Structure of High Rank Coal

    College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, China. School of Mining and Mechanical Engineering, Liupanshui Normal University, Liupanshui, Guizhou 553004, China. ... For the high-rank coal of the Jiulishan coal mine in the Jiaozuo mining area, 12%HCL + 3%HF as a mixed acid fluid had the ...

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  • Jiaozuo Coal Mining, Heavy Industry Manufacturing

    Jiaozuo, city, northern Henan sheng (province), China.It lies in the foothills at the southern end of the Taihang Mountains, to the west of Xinxiang, in a mining district.Jiaozuo was originally two villages under the administration of Xiuwu county. Exploitation of the villages’ rich coal resources resulted in the establishment of the Jiaozuo township in 1910.

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  • 河南焦煤能源有限公司九里山矿 - Global Energy Monitor

    2 天之前  运营公司: 河南焦煤能源有限公司九里山矿 [1] 母公司: 河南能源化工集团有限公司 [1] 地 址: 河南省焦作市马村区演马街道办事处陆村. 地理坐标: 35.308731, 113.410586. 状 态: 已投产. 生产规模: 100万吨/. [3] 资源储量: 11275万吨 [5] 可采储量: 6175万吨 [5] 煤 种: 无烟

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  • (PDF) Analysis Method of the Occurrence Law of Coalbed

    2022.3.30  Te gas geological information applied to the prediction and prevention of coal mine gas outburst mainly has two parts: Te frst is the data obtained directly through on-site collection, sorting ...

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  • 实体煤赋存环境下微生物降解煤吸附甲烷试验研究

    2017.10.11  1 河南工程学院 安全工程学院,河南 郑州 451191; 2 河南理工大学 安全科学与工程学院,河南 焦作 454003 收稿期:2017-10-11 修回期:2017-12-26 出版期:2018-02-28 发布期:2020-11-17 作者简介:于红 (1985—),男,河南济源人,博士,讲师,主要从事瓦斯灾害预测与防治方面的研究。

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  • Comprehensive Monitoring Research on the Effect of

    3He’nan Coking Coal Energy Co., Ltd. Jiulishan Mine, Jiangzuo 454005, China Correspondence should be addressed to Lei Huang; hl583654197@163 Received 17 September 2021; Revised 27 March 2022 ...

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  • [PDF] Movement Laws of Overlying Strata above a Fully Mechanized Coal ...

    2021.5.22  The aim of this study is to obtain movement laws of overlying strata above a fully mechanized coal mining face backfilled with gangue and solve the problem of surface subsidence during coal mining. This study was carried out based on gangue backfilling mining of Jiulishan Coal Mine (Jiaozuo City, Henan Province, China) from the

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