High-intensity mining characteristics and its evaluation system of thick coal seam in China’s coalmines

• Autorzy: Wen-bing G. , Er-hu B. , Da-ming Y.
• Języki publikacji: EN

Abstrakty

EN

With the transfer of coal mining strategy and the continuous improvement of mining technology and equipment, the high-intensity mining of thick coal seam has become an important development direction of China’s coal mining technology. High-intensity mining would cause worse strata and surface movement and deformation and environment effects than general geological and mining conditions due to its geological and mining factors. According to analyzing the status and definition of high-intensity mining in China’s coalmines, the main characteristics of high-intensity mining in thick coal seam were systematically studied from aspects of geological and mining conditions, panel sizes, technical equipment, face advance speed, production and efficiency, ratio of depth to thickness, overburden strata and ground surface destruction. Based on the theory of green mining, the main indexes and evaluation system of high-intensity mining had been established from the aspects of geological and mining factors and mining damage factors. Meanwhile, the analytic hierarchy process (AHP) was used to analyze the mining damage factors. The results demonstrate that geological and mining factors and mining damage factors are important parts of high-intensity mining of thick coal seam. Moreover, mining damage factors are an important characteristic that cannot be ignored in high-intensity mining of thick coal seam, and it can be used to determine whether the longwall mining face of coal mine is high-intensity mining, or judge and analyze the damage to buildings, overburden strata, ground surface and ecological environment. The research results provide theoretical and technical basis for safe and efficient green production, mining damage and protection in coalmine.

Słowa kluczowe

EN

green mining; high-intensity mining; thick coal seams; geological factors; mining factors; mining damage factors

PL

górnictwo ekologiczne; intensywność wydobycia; kopalnia węgla kamiennego; czynniki geologiczne; czynniki górnicze; szkody górnicze

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Prace Instytutu Mechaniki Górotworu PAN
• Rocznik: 2018
• Tom: T. 20, nr 2
• Strony: 147--158
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Wen-bing G.

• School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
• Collaborative Innovative Center of Coal Safety Production in Henan Province, Jiaozuo 454000, China

autor

Er-hu B.

• School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
• Collaborative Innovative Center of Coal Safety Production in Henan Province, Jiaozuo 454000, China

autor

Da-ming Y.

• School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
• Collaborative Innovative Center of Coal Safety Production in Henan Province, Jiaozuo 454000, China

Bibliografia

• Yajun S., Mengfei Z., Shang G. et al.: Water-preserved mining technology and practice in typical high intensity mining area of China [J]. Journal of China Coal Society, 2017, 42(1): 56-65.
• Jinhua W.: Key technology for fully-mechanized top coal caving with large mining height in extra-thick coal seam [J]. Journal of China Coal Society, 2013, 38(12): 2089-2098.
• Dengfeng Y., Zhonghui C., Qinfeng H. et al.: Catastrophic analysis of support crushing disasters while roof cutting in shallow seam mining [J]. Journal of Mining & Safety Engineering, 2016, 33(1): 122-127.
• Bei Z., Guimin Z., Kai Z. et al.: Water and sands bursting mechanism induced by geological borehole and control measures [J]. Journal of Mining & Safety Engineering, 2015, 32(2): 219-226.
• Shaogang L., Zhengfu B.: Research progress on the environment impacts from underground coal mining in arid western area of China [J]. Acta Ecologica Sinica, 2014, 34(11): 2837-2843.
• Hui L., Chungui H., Kazhong D. et al.: Analysis of forming mechanism of collapsing ground fissure caused by mining [J]. Journal of Mining & Safety Engineering, 2013, 30(3): 380-384.
• Limin F., Xiongde M., Yonghong L. et al.: Geological disasters and control technology in high intensity mining area of western China [J]. Journal of China Coal Society, 2017, 42(2): 276-285.
• Wenbing G., Yunguang W.: The definition of high-intensity mining based on green coal mining and its index system [J]. Journal of Mining & Safety Engineering, 2017, 34(4): 616-623.
• Jinghu Y., Shaolong S., Dezhong K.: Effect of working face length and advancing speed on strata behaviors in high-intensity mining [J]. Rock and Soil Mechanics, 2015, 36(S2): 333-340.
• Jinan W., Shenhua J., Guangxiang X.: Study on infl uence of mining rate on stress environment in surrounding rock of mechanized top caving mining face [J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(6): 1118-1124.
• Guangxiang X., Jucai C., Xinzhu H.: Influence of mining velocity on mechanical characteristics of surrounding rock in fully mechanized top-coal caving face [J]. Chinese Journal of Geotechnical Engineering, 2007, 29(7): 963-967.
• Shengli Y., Zhaohui W., Wei J. et al.: Advancing rate effect on rock and coal failure format in high-intensity mining face [J]. Journal of China Coal Society,2016,41(3):586-594.
• Jinhua W., Leting H., Shoubin L. et al.: Development of intelligent technology and equipment in fully-mechanized coal mining face [J]. Journal of China Coal Society, 2014, 39(8): 1418-1423.
• State Administration of Work Safety, State Administration of Coal Mine Safety, National Energy Administration, National Railway Administration of the People’s Republic of China. Mining criterion of coal pillars left for protecting surface structures, water bodies, railways and main shafts [S]. 2017.
• Wenbing G., Erhu B., Yi T. et al.: Surface movement characteristics caused by fully-mechanized top coal caving mining under thick collapsible loess [J]. Electronic Journal of Geotechnical Engineering, 2017, 22(3): 1107-1116.
• Xuezhong L.: Study on geological disaster regularity of coal mining subsidence in Ningdong coalfield. Thesis, China University of Geosciences (Beijing), Beijing, 2006.
• Wei Z., Yonghai T., Zhigang Z.: Field measurement on ground subsidence and overburden failure by high intensity fully mechanized top-coal caving under thick loess [J]. Metal Mine, 2015(4): 123-126.
• Qiang W.: Progress, problems and prospects of prevention and control technology of mine water and reutilization in China [J]. Journal of China Coal Society, 2014, 39(5): 795-805.
• Jiachen W., Zhaohui W.: Impact effect of dynamic load induced by roof in high-intensity mining face [J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S2): 3987-3997.
• Zhixiang T., Zongsheng W., Yunjiang L. et al.: Field research on ground subsidence rules of intensive fully mechanized mining by sublevel caving [J]. Journal of Mining & Safety Engineering, 2008, 25(1): 59-62.
• Xingping L.: Derived dynamic disasters of large scale mined-out area for west coal mines [J]. Journal of University of Science and Technology Beijing, 2004, 26(1): 1-3.
• Research Group of National Key Basic Research Program of China (2013CB227900) (Basic Study on Geological Hazard Prevention and Environmental Protection in High Intensity Mining of Western Coal Area). Theory and method research of geological disaster prevention on high-intensity coal exploitation in the west areas [J]. Journal of China Coal Society, 2017, 42(2): 267-275.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).