{"title":"Comprehensive governance technology for fully-mechanized mining face across abandoned roadways in thick coal seam","authors":"Z. Yaohui, Li Xifan, Xiong Zu-qiang, W. Cheng","doi":"10.16265/J.CNKI.ISSN1003-3033.2020.06.011","DOIUrl":null,"url":null,"abstract":"In order to address impacts of various types of abandoned roadways on normal mining of working face in thick coal seamꎬ field surveysꎬ theoretical analysis and other methods were used to summarize occurrence characteristics and hazards of abandoned roadways which were divided into complete types along bottomꎬ complete types along topꎬ and fallen onesꎬ and different treatment methods for them were proposed. Meanwhileꎬ in order to meet needs of various construction schemesꎬ sulfoaluminate ̄based multifunctional grouting materials were developedꎬ and comprehensive governance technology for fully ̄ mechanized mining face passing abandoned roadways in thick coal seam was proposed. Finallyꎬ with Sihe 中 国 安 全 科 学 学 报 China Safety Science Journal 第30卷 2020年 coal mineꎬ Chengzhuang coal mine and Guozhuang coal mine taken as engineering backgroundsꎬ filling pillar supportꎬ high water filling and deep ̄hole grouting methods were applied respectively to treat abandoned roadwaysꎬ and their governance effectiveness was investigated. The results show that after specific treatment of empty roadwaysꎬ there will be no sloughing and roof accidentsꎬ and roof pressure becomes normalꎬ thus ensuring safe mining of working faces.","PeriodicalId":9976,"journal":{"name":"中国安全科学学报","volume":"128 1","pages":"71"},"PeriodicalIF":0.0000,"publicationDate":"2020-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"中国安全科学学报","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.16265/J.CNKI.ISSN1003-3033.2020.06.011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In order to address impacts of various types of abandoned roadways on normal mining of working face in thick coal seamꎬ field surveysꎬ theoretical analysis and other methods were used to summarize occurrence characteristics and hazards of abandoned roadways which were divided into complete types along bottomꎬ complete types along topꎬ and fallen onesꎬ and different treatment methods for them were proposed. Meanwhileꎬ in order to meet needs of various construction schemesꎬ sulfoaluminate ̄based multifunctional grouting materials were developedꎬ and comprehensive governance technology for fully ̄ mechanized mining face passing abandoned roadways in thick coal seam was proposed. Finallyꎬ with Sihe 中 国 安 全 科 学 学 报 China Safety Science Journal 第30卷 2020年 coal mineꎬ Chengzhuang coal mine and Guozhuang coal mine taken as engineering backgroundsꎬ filling pillar supportꎬ high water filling and deep ̄hole grouting methods were applied respectively to treat abandoned roadwaysꎬ and their governance effectiveness was investigated. The results show that after specific treatment of empty roadwaysꎬ there will be no sloughing and roof accidentsꎬ and roof pressure becomes normalꎬ thus ensuring safe mining of working faces.
期刊介绍：
China Safety Science Journal is administered by China Association for Science and Technology and sponsored by China Occupational Safety and Health Association (formerly China Society of Science and Technology for Labor Protection). It was first published on January 20, 1991 and was approved for public distribution at home and abroad.
China Safety Science Journal (CN 11-2865/X ISSN 1003-3033 CODEN ZAKXAM) is a monthly magazine, 12 issues a year, large 16 folo, the domestic price of each book is 40.00 yuan, the annual price is 480.00 yuan. Mailing code 82-454.
Honors:
Scopus database includes journals in the field of safety science of high-quality scientific journals classification catalog T1 level
National Chinese core journals China Science and technology core journals CSCD journals
The United States "Chemical Abstracts" search included the United States "Cambridge Scientific Abstracts: Materials Information" search included
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