Advance Search
Mine Pressure Behavior Law and Powered Support Suitability of High Cutting Coal Mining Face in Shallow Depth Seam[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (1).
Citation: Mine Pressure Behavior Law and Powered Support Suitability of High Cutting Coal Mining Face in Shallow Depth Seam[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (1).

Mine Pressure Behavior Law and Powered Support Suitability of High Cutting Coal Mining Face in Shallow Depth Seam

More Information
  • Available Online: April 02, 2023
  • Published Date: January 24, 2011
  • In order to study on the mine pressure behavior law and the powered support suitability situation of the high cutting coal mining face in the shallow depth seam, the KBJ-6011I-1 type working resistance continued recorder of the powered support was applied to the site measurement and analysis on the first coal mining fac e in Suancigou Mine. The results showed that the mine initial pressurized distance of 52 m occurred in the coal mining face was basically fit with the theoretical calculati on results of 54.1 m;the periodical pressurized distance would be increased with the mining face advancing speed increased and when the coal mining face advancing s peed reached at 4 m/d and 13 m/d, the periodical pressurized distance would be 12.8 m and 21.8 m individually;during the pressurized period, the working resistance di stribution features of the powered supports would have high resistances at the middle part of the coal mining face and the rated work resistance ratio would be 96%, th e work resistances of the powered supports at the two ends would be low and would not be over 91% of the rated work resistance ratio.Finally, based on the analysis 0 n the operation features of the powered support, the paper confirmed that the 2400/5000-2x4412-1750 type hydraulic powered support could meet the requirements of t he roof strata control during the pressurized period.
  • Related Articles

    [1]DING Guoli, LU Xihui, WU Shaoguo, LIU Yongqian. Sturdy on ground pressure law and support adaptability of deep-buried and ultra-long fully-mechanized longwall mining face[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(3): 43-48. DOI: 10.13199/j.cnki.cst.2021.03.004
    [2]ZHANG Jinhu. Study on factors affecting abnormal mine pressure of large mining height fully-mechanized mining and support adaptability[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (12).
    [3]Zhang Hongwei Zhou Kunyou Rong Hai Fu Xing Zhao Xiangzuo, . Study on mine strata behaviors and powered support suitability of high cutting coal mining face with shallow mining depth[J]. COAL SCIENCE AND TECHNOLOGY, 2017, (4).
    [4]Li Huamin Zhang Qunlei Liu Chuang Shen Lulu Li Huigui, . Analysis on overburden strata movement and mine strata pressure behavior of high cutting mining in ultra thick seam[J]. COAL SCIENCE AND TECHNOLOGY, 2017, (1).
    [5]Li Huamin Jiang Dongjie Syd S Peng Feng Junfa, . Analysis on loading features and suitability of hydraulic powered caving supports[J]. COAL SCIENCE AND TECHNOLOGY, 2015, (6).
    [6]ZHANG Jin-hu WANG Guo-fa HOU Gang LI Zhan-ping TONG You, . Adaptability Analysis on High Cutting Hydraulic Powered Support Applied to Thick Seam in Buertai Mine[J]. COAL SCIENCE AND TECHNOLOGY, 2014, (9).
    [7]CAO Zhao-qi. Analysis on Strata Behavior Law and Study on Support Selection of High Mining Height Working Face[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (10).
    [8]LUO Wen. Handling Technology of Hydraulic Powered Support Jammed and Roof Fall During Terminal Mining of Fully-Mechanized High Cutting Coal Face with Shallow Seam[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (9).
    [9]Mine Strata Pressure Law of Fully Mechanized Top Coal Caving Mining Face in Shallow Depth and Determination of Working Resistance for Powered Support[J]. COAL SCIENCE AND TECHNOLOGY, 2013, (5).
    [10]Study on Suitability of Hydraulic Powered Two Lag Shield Caving Support in Pingshuo Mining Area[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (11).

Catalog

    Article views (151) PDF downloads (0) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return