Advance Search
Study on Failure Law of Cretaceous Overburden Strata Under Conditions of Fully Mechanized Top Coal Caving Mining[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (10).
Citation: Study on Failure Law of Cretaceous Overburden Strata Under Conditions of Fully Mechanized Top Coal Caving Mining[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (10).

Study on Failure Law of Cretaceous Overburden Strata Under Conditions of Fully Mechanized Top Coal Caving Mining

More Information
  • Available Online: April 02, 2023
  • Published Date: October 24, 2011
  • In order to ensure the fully mechanized top coal caving mining face not affected by the Tertiary System Aquifer in the overburden strata, to determine the rational thickness of the left safety coal (rock) pillar shall understand the failure law of the Cretaceous overburden strata under the conditions of the fully mechanized to p coal caving mining.Based on the site measured results of the failure height in the overburden strata and in combination with the lab similar material simulation, the rat io relationship between the failure "two zone" height of the Cretaceous overburden strata and the mining height under the condition of the fully mechanized top coal cavi ng mining was obtained.The failing and mining ratio of 5.61 and the cracking and mining ratio of 12.21 was applied to be the numerical basis of the rational left safety C oal (rock) pillar under the fully mechanized top coal caving mining in the top slice of No.7 seam.In comparison analysis on the related failure data of the overburden stra ta with the similar mining condition in the mine, the paper held that the overburden failure in the Cretaceous strata would have small cracking and mining ratio and the I arge falling and mining ratio features and could meet the failure law of the soft and weak type overburden strata.
  • Related Articles

    [1]SUN Lin, CHEN Sheng, YAO Xulong, ZHANG Yanbo, TAO Zhigang, LIANG Peng. Research on multi-objective detection method for incomplete information in coal mine underground[J]. COAL SCIENCE AND TECHNOLOGY, 2024, 52(S2): 211-220. DOI: 10.12438/cst.2023-1293
    [2]CHENG Cheng, WU Hongzhuang, LIU Songyong. Constraint optimization of shearer cutting path based on B-spline curve fitting and mayfly algorithm[J]. COAL SCIENCE AND TECHNOLOGY, 2024, 52(S1): 269-279. DOI: 10.13199/j.cnki.cst.2022-1429
    [3]CHEN Wei, LI Jingzhao, SHI Qing, LIU Jichao, LI Huashun. Construction and application of a digital twin model for multi-objectiveoptimization of intelligent tape conveyor system[J]. COAL SCIENCE AND TECHNOLOGY, 2024, 52(12): 287-299. DOI: 10.12438/cst.2023-1750
    [4]ZHANG Qiang, LIU Wei, ZHANG Runxin, LI Baoqi, GU Jieying. Research on collaborative optimization of cutting and conveying of separated auger drill[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(11): 179-189. DOI: 10.13199/j.cnki.cst.2023-0410
    [5]HAN Liu, QIN Zihe, SHU Jisen, SHANG Tao, CHEN Shuzhao. Research on open-pit mine schedule planning method based on  multi-objective optimization[J]. COAL SCIENCE AND TECHNOLOGY, 2022, 50(7): 146-155.
    [6]WANG Xin, BAI Ningbo, ZHOU Junjun, WANG Yuxi. Study on magnetotelluric inversion method based on hybrid intelligent algorithm optimization[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(7): 147-153.
    [7]GUO Yinan, CUI Ning, CHENG Jian. Microeismic source localization method based on hybrid algorithm of MOPSO-SA[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(3).
    [8]GUO Yongcun, YU Zhongshan, LU Yichang. Research on photoelectric intelligent separation technology of coal and gangue based on NP-FSVM with the PSO algorithm[J]. COAL SCIENCE AND TECHNOLOGY, 2019, (4).
    [9]Cutting Path Planning of Coal Shearer Base on Particle Swarm Triple Spline Optimization[J]. COAL SCIENCE AND TECHNOLOGY, 2011, (3).

Catalog

    Article views (545) PDF downloads (0) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return