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Mining Technology and Mine Management

Current Situation and Prospect of Research on Underground Goaf in Metal Mines

  • Li CHENG ,
  • Huanxin LIU ,
  • Mingde ZHU ,
  • Qinzheng WU
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  • Laboratory on Deep Mining of Shandong Gold Group Co. ,Ltd. ,Yantai 264000,Shandong,China

Received date: 2019-05-06

  Revised date: 2019-11-11

  Online published: 2020-02-26

Abstract

With the rapid development of economy and society,the demand for mineral resources is increasing,and the mining intensity is increasing.However,as time goes by,a large number of goafs has been left,which easily lead to deformation of pillars and collapse of the roof.The accident seriously affected the safe production of the mine.In order to systematically study the problems and solutions of underground mine goafs in metal mines,a comprehensive review of the detection technology,stability evaluation technology,treatment technology and monitoring technology of underground goafs was carried out,and the research status and shortcomings of the key technologies of goafs were expounded.It is pointed out that based on the intelligent comprehensive detection of goaf,through the modern scientific stability analysis methods such as intelligent algorithm and engineering reliability,combined with the actual situation of mine geology and mining technology,strengthening the information and intelligent monitoring of goaf is an effective measure for goaf governance at this stage.At the same time,the key research directions in the future were proposed:(1)Based on big data,with artificial intelligence algorithm as the core and reliability as the guarantee,analyze and study the problems of goaf comprehensively,objectively and accurately;(2) Study on the control method of roof and surrounding rock stability under deep multi-media and multi-field coupling;(3)Build a non-linear goaf stability analysis model,strengthen the research on online monitoring and early warning methods of goaf stability,and realize the dynamic simulation of goaf monitoring data and online analysis control platform; (4) Introduce the theory of disaster chain,construct the theoretical model of chain effect of goaf,implement the disaster reduction by breaking the chain at the source,and put forward the corresponding and reliable management technology of goaf;(5)Formulate corresponding specifications or general technical standards to provide guidance for goaf treatment.

Cite this article

Li CHENG , Huanxin LIU , Mingde ZHU , Qinzheng WU . Current Situation and Prospect of Research on Underground Goaf in Metal Mines[J]. Gold Science and Technology, 2020 , 28(1) : 70 -81 . DOI: 10.11872/j.issn.1005-2518.2020.01.044

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