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Gold Science and Technology >

2020 , Vol. 28 >Issue 5: 727 - 733

DOI: https://doi.org/10.11872/j.issn.1005-2518.2020.05.132

Mining Technology and Mine Management

Combined Support Technology of Resin Anchor Cable for High Stress Rock Mass Under Deep Complex Structure in Jiaojia Gold Mine

  • Yumin CHEN , 1 ,
  • Chenglong WANG 1 ,
  • Xiaofei LI 1 ,
  • Xiang JIANG 1 ,
  • Xingdong ZHAO 2
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  • 1. Shandong Gold Group Co. ，Ltd. ，Jinan 250101，Shandong，China
  • 2. Research Center for Mining Ground Pressure and Control，Northeastern University，Shenyang 110819，Liaoning，China

Received date: 2020-07-24

  Revised date: 2020-09-15

  Online published: 2020-11-05

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Highlights

The upward horizontal slicing and filling mining method is adopted in No.1 sub roadway of -750 m middle section in Jiaojia gold mine.Due to the development of layered joints on the roof and staggered distribution of joint structures，wedge-shaped caving and spalling failure of the roof occur.It is difficult to control the stability of rock mass with traditional bolt support.In this paper，through the field engineering geological survey and rock mechanics experiment，the rock mass quality grade is determined to be grade Ⅳ.The composite support system of resin anchor cable，metal mesh and shotcrete were selected by stability chart method，and the reasonable structural parameters of resin anchor cable support were calculated theoretically.Through the industrial test in -750 m middle section，the practical results show that the stability of rock mass has been significantly improved after using resin anchor cable support system.Through field displacement monitoring，the safety，reliability and effectiveness of resin bolt support system are further verified，which provides strong technical support for mining body under deep complex structure and accumulates certain practical experience.

Cite this article

Yumin CHEN , Chenglong WANG , Xiaofei LI , Xiang JIANG , Xingdong ZHAO . Combined Support Technology of Resin Anchor Cable for High Stress Rock Mass Under Deep Complex Structure in Jiaojia Gold Mine[J]. Gold Science and Technology, 2020 , 28(5) : 727 -733 . DOI: 10.11872/j.issn.1005-2518.2020.05.132

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http://www.goldsci.ac.cn/article/2020/1005-2518/1005-2518-2020-28-5-727.shtml

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