• Chinese Core Periodicals
  • Chinese Core Journals of Science and Technology
  • RCCSE Chinese Authoritative Academic Journals
Email Alert RSS
Advanced Search
YUAN Guiyang, SUN Zhiyong, LI Jianzhong. Experimental Study on Force Transfer Mechanism and Zonal Bearing Capacity of Reinforcement Mesh with Bolt Support[J]. Safety in Coal Mines, 2019, 50(12): 54-59.
Citation: YUAN Guiyang, SUN Zhiyong, LI Jianzhong. Experimental Study on Force Transfer Mechanism and Zonal Bearing Capacity of Reinforcement Mesh with Bolt Support[J]. Safety in Coal Mines, 2019, 50(12): 54-59.
shu

Experimental Study on Force Transfer Mechanism and Zonal Bearing Capacity of Reinforcement Mesh with Bolt Support

More Information
  • Published Date: December 19, 2019
    Graphical Abstract
    • Abstract
  • In order to grasp the failure law in the process of controlling the deformation of surrounding rock of roadway for reinforcing steel mesh, the force transfer mechanism and load-carrying characteristics of reinforcing steel mesh under static load are obtained by means of vertical load test and numerical simulation calculation (Ansys). Firstly, the reinforcing steel in the cross-shaped stretching zone in the center of reinforcing steel mesh is mainly subjected to the tensile action caused by vertical load, showing tensile fracture of main transfer bar and binding wire fixed between main transfer bar and model boundary is broken and released. Secondly, the non-main transfer bar is distorted locally, and the rectangular mesh in the area is distorted into diamond mesh. Based on the force transmission mechanism of steel mesh and the load-carrying characteristics in different zones, three optimization schemes are proposed, namely the expansion of steel bar in the cross-shaped stretch zone, the torsional strengthening of joints in partial twisted load-bearing zone and the increase of strength in the middle zone of tied wire bundling. It is necessary to strengthen the steel mesh in different zones in order to improve the stability of the steel mesh.
    • FullText(HTML)
    • References (18)
  • [1]
    康红普.高强度锚杆支护技术的发展与应用[J].煤炭科学技术,2000,28(2):1-4.
    [2]
    康红普.煤矿预应力锚杆支护技术的发展与应用[J].煤矿开采,2011,16(3):25-30.
    [3]
    何理礼,聂亚辉.预紧力锚杆作用下锚固体内应力及锥形体特征分析[J].煤矿安全,2019,50(1):222.
    [4]
    康红普.我国煤矿巷道锚杆支护技术发展60年及展望[J].中国矿业大学学报,2016,45(6):1071-1081.
    [5]
    李兆霖,王连国,陆银龙.高强让压锚杆力学特性及结构优化[J].煤矿安全,2015,46(11):54-57.
    [6]
    谷拴成,周攀.软岩巷道锚杆支护特性分析[J].煤矿安全,2018,49(7):224-228.
    [7]
    林健,孙志勇.锚杆支护金属网力学性能与支护效果实验室研究[J].煤炭学报,2013,38(9):1542-1548.
    [8]
    孙志勇,林健.锚杆支护焊接钢筋网力学性能研究[J].煤矿开采,2011,16(1):14-16.
    [9]
    孙志勇.锚杆支护金属网力学性能与支护效果研究[D].北京:煤炭科学研究总院,2011.
    [10]
    葛凤忠.回采巷道锚网支护金属网变形特征的试验研究[D].焦作:河南理工大学,2014.
    [11]
    JR Player, EC Morton, AG Thompson, et al. Static and dynamic testing of steel wire mesh for mining applications ofrock surface support[C]∥6th International Symposium on Ground Support in Mining and Civil Engineering Construction. Curtin University Australia, Canberra, 2008: 693-699.
    [12]
    E Villaescusa. Laborary testing of weld mesh for rock support[J]. Rock Support and Reinforcement in Mining, 1999, 18(6): 155-159.
    [13]
    E C Morton, A G Thompson, E Villaescusa.Testing and analysis of steel wire mesh for mining application of rock surface support[C]∥11th Congress of the International Society for Rock Mechanics. WA School of Mines, Kalgoorlie, 2007: 574-582.
    [14]
    Dolinar, D R.Performance characteristics for welded wire screen used for surface control in underground coal mines[J]. Cement and Concrete Composites, 2004, 8(26): 389-404.
    [15]
    Thompson A, VillaescusaE, Player J, et al. Rock support mesh responses to static and dynamic loadings[M].Australia: Asia Pacific Press, 2013.
    [16]
    Zhenjun S, Porter I, Nemcik J, et al. Comparing the reinforcement capacity of welded steel mesh and a thin spray-on liner using large scale laboratory tests[J].International Journal of Mining Science and Technology, 2014, 24(3): 373-377.
    [17]
    Potvin Y, Giles G. The Development of a New High Energy Absorption Mesh[C]∥Proceedings of the 10th Underground Operators Conference, Australian Centre for Geomechanics. Victoria, 2008: 89-94.
    [18]
    RK Whiting.In situ static performance assessment of mine mesh[J]. Rock Support and Reinforcement Practice in Mining, 1999, 12(3): 119-130.
    • Related Articles

  • Related Articles

    [1]ZHANG Shuo, LIU Linsheng, LI Xiuming, YE Shoujie, LI Weiteng. Research on numerical simulation technology of a commonly used yielding bolt[J]. Safety in Coal Mines, 2022, 53(3): 156-161,169.
    [2]SHAO Jianli, ZHOU Fei, XUE Yanchao, DU Houqian. Study on Numerical Simulation of Pore-fracture Double Seepage in Rock Mass[J]. Safety in Coal Mines, 2019, 50(9): 1-4.
    [3]HU Yanwei, SUN Lulu, JIANG Chenghao, HUANG Tengyao, CHEN Lianjun. Study on Numerical Simulation of Gas Extraction in Goaf Based on COMSOL[J]. Safety in Coal Mines, 2018, 49(5): 167-170,174.
    [4]LI Shidong, LEI Ruide. Numerical Simulation of Rock Burst Risk Induced by Fault Under Mining[J]. Safety in Coal Mines, 2017, 48(3): 40-43,47.
    [5]SHI Ping, YAN Haipeng. Numerical Simulation Analysis of Roadway Bolting Support in Beiling Coal Mine[J]. Safety in Coal Mines, 2016, 47(7): 201-203,207.
    [6]GENG Yadong, LIU Defeng. Numerical Simulation of Forepoling Bolt Installing Angle[J]. Safety in Coal Mines, 2014, 45(1): 44-46,50.
    [7]ZHANG Lian-ying, MA Chao, LI Yan. Numerical Simulation of Bolting Support Mechanism[J]. Safety in Coal Mines, 2013, 44(9): 71-73.
    [8]HOU Li-bin, ZHAI Ying-da, HAN Wei. Numerical Simulation Study on Mining Subsidence Laws in Licun Mine[J]. Safety in Coal Mines, 2013, 44(4): 58-61.
    [9]JIANG Xiu-lei, MENG Jie, CHEN Yan-ke, LIU Xian-zheng. Numerical Simulation Study on the Scope of Hydraulic Fracturing Effect[J]. Safety in Coal Mines, 2013, 44(2): 3-6.
    [10]MA Shao-jie. Numerical Simulation Study on Overlying Strata Failure of Coal Mining[J]. Safety in Coal Mines, 2012, 43(12): 54-56.

Catalog

    Get Citation
    XML
    Article views (61) PDF downloads (0) Cited by()
    Turn off MathJax
    Article Contents
    Abstract
    References
    Related Articles
    Links

    辽公网安备 21049802000106号　辽ICP备11020636号-9

    Website Copyright © CCTEG Shenyang Research Institute

    Address：No. 11 Binhe Road, Fushun Economic Development Zone, Liaoning　Postal Code：113122

    Tel：024-56616988/56616881　Email：mkaq@163.com

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return