• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊
MA Wen-qiang, WANG Tong-xu, MA Zi-yang. Structure of regenerated roof and determination of support load in re-mining stope[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(10): 1892-1900. DOI: 10.11779/CJGE201710018
Citation: MA Wen-qiang, WANG Tong-xu, MA Zi-yang. Structure of regenerated roof and determination of support load in re-mining stope[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(10): 1892-1900. DOI: 10.11779/CJGE201710018

Structure of regenerated roof and determination of support load in re-mining stope

More Information
  • Received Date: August 04, 2016
  • Published Date: October 24, 2017
  • To determine the reasonable support load in re-mining stope, the zoning characteristics of the structure of regenerated roof are obtained through theoretical calculation, field observation and roof structure detection, and a structural model for the regenerated roof is established. Based on this model, the structural mechanical model for the support and the regenerated roof is developed in combining with the field observation and similar material simulation experiments. The expression for support load is derived by using the mechanical model. The calculation of a field example and site verification are performed. The results indicate that the structure of the regenerated roof can be divided into four zones, namely, cemented regeneration zone, weak cemented compaction zone, fissure zone and bending zone. The rock mass born by the support can be classified into two regions, namely, fully bearing region (region A) and partly bearing region (region B). The monitoring data of field support load show good agreement with the calculated results of a practical example using the formulas derived from the mechanical model for the support and regenerated roof.
  • [1]
    陶明印, 刘 峰. 再生复杂顶板应力分析和控制研究[J]. 中国煤炭, 2007, 33(12): 33-36. (TAO Ming-yin, LIU Feng. Stress analysis and control research of complex regenerated roof[J]. China Coal, 2007, 33(12): 33-36. (in Chinese))
    [2]
    赵和松. 再生顶板的结构形式及其顶板控制[J]. 煤炭科学技术, 1993(5): 2-5. (ZHAO He-song. Constitution and control of regenerated roof[J]. Coal Science and Technology, 1993(5): 2-5. (in Chinese))
    [3]
    杨庆威. 白皎煤矿余煤复采顶板控制及防灭火技术应用[D]. 西安: 西安科技大学, 2013: 36-45. (YANG Qing-wei. Roof control and application of comprehensive technology of fire prevention and extinguishing of residual coal compound mining of Baijiao coal mine[D]. Xi'an: Xi'an University of Science and Technology, 2013: 36-45. (in Chinese))
    [4]
    赵 通, 弓培林, 王 开, 等. 残煤复采区域破碎软岩巷道变形机理及控制[J]. 矿业研究与开发, 2014, 34(6): 17-20. (ZHAO Tong, GONG Pei-lin, WANG Kai, et al. Deformation mechanism and control on broken and soft rock drifts in residual coal mining stope[J]. Mining Research and Development, 2014, 34(6): 17-20. (in Chinese))
    [5]
    朱 涛, 张百胜, 冯国瑞, 等. 极近距离煤层下层煤采场顶板结构与控制[J]. 煤炭学报, 2010, 35(2): 190-193. (ZHU Tao, ZHANG Bai-sheng, FENG Guo-rui, et al. Roof structure and control in the lower seam mining field in the ultra-close multiple seams[J]. Journal of China Coal Society, 2010, 35(2): 190-193. (in Chinese))
    [6]
    梁 冰, 杨冬鹏, 孙维吉. 中厚倾斜煤层残留煤的复采数值模拟[J]. 西安科技大学学报, 2008, 28(2): 371-374. (LIANG Bing, YANG Dong-peng, SUN Wei-ji. Numerical simulation on the residual coal second mining of inclined medium-thickness coal seam[J]. Journal of Xi'an University of Science and Technology, 2008, 28(2): 371-374. (in Chinese))
    [7]
    杨书召, 翟新献, 康全玉, 等. 厚煤层分层开采再生顶板和设备配套问题研究[J]. 焦作工学院学报(自然科学版), 2003, 22(1): 5-8. (YANG Shu-zhao, ZHAI Xin-xian, KANG Quan-yu, et al. Study on reproducing roof strata and the equipment forming a complete set of thick coal seam slicing[J]. Journal of Jiaozuo Institute of Technology (Natural Science) , 2003, 22(1): 5-8. (in Chinese))
    [8]
    郭 帅, 孔宪法, 康天合, 等. 采空区下近距离煤层综采工作面支架载荷分析[J]. 煤矿安全, 2013, 44(5): 214-217. (GUO Shuai, KONG Xian-fa, KANG Tian-he, et al. Support load analysis of fully-mechanized mining face in close distance coal seam under goaf[J]. Safety in Coal Mines, 2013, 44(5): 214-217. (in Chinese))
    [9]
    王向楠, 崔子强, 王玉峰, 等. 三软煤层复采工作面矿压显现特征分析[J]. 中州煤炭, 2014(8): 23-26. (WANG Xiang-nan, CUI Zi-qiang, WANG Yu-feng, et al. Research on weighing feature of repeated mining face in three soft coal seam[J]. Zhongzhou Coal, 2014(8): 23-26. (in Chinese))
    [10]
    李凤仪, 王维维. 薄煤层下分层复采工作面顶板控制技术[J]. 矿业安全与环保, 2009, 36(1): 50-51. (LI Feng-yi, WANG Wei-wei. The roof control technology of repeated working face of lower slice thin seam[J]. Mining Safety & Environmental Protection, 2009, 36(1): 50-51. (in Chinese))
    [11]
    王同旭, 马文强, 曲孔典. 随机节理岩体巷道再生顶板失稳机理与控制研究[J]. 采矿与安全工程学报, 2016, 33(2): 265-270. (WANG Tong-xu, MA Wen-qiang, QU Kong-dian. Study of instability mechanism and control of roadway regenerated roof in random joint rock[J]. Journal of Mining & Safety Engineering, 2016, 33(2): 265-270. (in Chinese))
    [12]
    马文强, 李恭建, 王同旭. 再生顶板下巷道布置及支护离散元模拟[J]. 辽宁工程技术大学学报(自然科学版), 2016, 35(9): 897-901. (MA Wen-qiang, LI Gong-jian, WANG Tong-xu. Discrete element research of roadway layout and its support under regenerated roof[J]. Journal of Liaoning Technical University (Natural science), 2016, 35(9): 897-901. (in Chinese))
    [13]
    钱鸣高, 石平五, 许家林. 矿山压力与岩层控制[M]. 徐州:中国矿业大学出版社, 2010, 8: 72-81. (QIAN Ming-gao, SHI Ping-wu, XU Jia-lin. Ground pressure and strata control[M]. Xuzhou: China University of Mining and Technology Press, 2009, 8: 72-81. (in Chinese))
    [14]
    田昌盛, 白占芳, 翟新献. 下分层综放工作面上覆岩层结构特征[J]. 河南理工大学学报, 2006, 25(3): 191-195. (TIAN Chang-sheng, BAI Zhan-fang, ZHAI Xin-xian. Character of overlying strata structure for cully mechanized coal face with sublevel caving in lower-slicing[J]. Journal of Henan Polytechnic University, 2006, 25(3): 191-195. (in Chinese))
    [15]
    郭惟嘉, 刘伟韬, 张文泉. 矿井特殊开采[M]. 北京: 煤炭工业出版社, 2008: 125-126. (GUO Wei-jia, LIU Wei-tao, ZHANG Wen-quan. Special mining of mine[M]. Beijing: Coal Industry Press, 2008: 125-126. (in Chinese))
    [16]
    卢国志, 汤建泉, 宋振骐. 传递岩梁周期断裂步距与周期来压步距差异分析[J]. 岩土工程学报, 2010, 32(4): 538-541. (LU Guo-zhi, TANG jian-quan, SONG Zhen-qi. Difference between cyclic fracturing and cyclic weighting interval of transferring rock beams[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(4): 538-541. (in Chinese))
  • Related Articles

    [1]LIU Hongwei, WANG Mengqi, ZHAN Liangtong, FENG Song, WU Tao. Method and apparatus for measuring in-situ gas diffusion coefficient and permeability coefficient of unsaturated soils[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(5): 948-958. DOI: 10.11779/CJGE20221228
    [2]JI Yong-xin, ZHANG Wen-jie. Experimental study on diffusion of chloride ions in unsaturated soils[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(9): 1755-1760. DOI: 10.11779/CJGE202109022
    [3]XU Fei, CAI Yue-bo, QIAN Wen-xun, WEI Hua, ZHUANG Hua-xia. Mechanism of cemented soil modified by aliphatic ionic soil stabilizer[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(9): 1679-1687. DOI: 10.11779/CJGE201909012
    [4]HUANG Wei, LIU Qing-bing, XIANG Wei, ZHANG Yun-long, WANG Zhen-hua, DAO Minh Huan. Water adsorption characteristics and water retention model for montmorillonite modified by ionic soil stabilizer[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(1): 121-130. DOI: 10.11779/CJGE201901013
    [5]ZHANG Wen-jie, GU Chen, LOU Xiao-hong. Measurement of hydraulic conductivity and diffusion coefficient of backfill for soil-bentonite cutoff wall under low consolidation pressure[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(10): 1915-1921. DOI: 10.11779/CJGE201710021
    [6]HUANG Qing-fu, ZHAN Mei-li, SHENG Jin-chang, LUO Yu-long, ZHANG Xia. Numerical method to generate granular assembly with any desired relative density based on DEM[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(3): 537-543. DOI: 10.11779/CJGE201503019
    [7]LIU Qing-bing, XIANG Wei, CUI De-shan. Effect of ionic soil stabilizer on bound water of expansive soils[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(10): 1887-1895.
    [8]LIU Qing-bing, XIANG Wei, CUI De-shan, CAO Li-jing. Mechanism of expansive soil improved by ionic soil stabilizer[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(4): 648.
    [9]Microcosmic mechanism of ion transport in charged clay soils[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(11): 1794-1799.
    [10]XI Yong, Hui, REN Jie. Laboratory determination of diffusion and distribution coefficients of contaminants in clay soil[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(3): 397-402.

Catalog

    Article views PDF downloads Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return