Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study
This study is aimed at exploring the influence of narrow coal pillars in gob-side entry driving (GSED) on the development height of the water-conducting fracture zone (WCFZ) in the fully mechanized caving face. In reference to the geological mining conditions of working face 11915 of Gequan (GQ) Coa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/5/557 |
| _version_ | 1797497594359840768 |
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| author | Yi Tan Han Xu Weitao Yan Wenbing Guo Qi Sun Dawei Yin Yujiang Zhang Xiaoqiang Zhang Xiaofei Jing Xiaoshuang Li Sijiang Wei Xiao Liu |
| author_facet | Yi Tan Han Xu Weitao Yan Wenbing Guo Qi Sun Dawei Yin Yujiang Zhang Xiaoqiang Zhang Xiaofei Jing Xiaoshuang Li Sijiang Wei Xiao Liu |
| author_sort | Yi Tan |
| collection | DOAJ |
| description | This study is aimed at exploring the influence of narrow coal pillars in gob-side entry driving (GSED) on the development height of the water-conducting fracture zone (WCFZ) in the fully mechanized caving face. In reference to the geological mining conditions of working face 11915 of Gequan (GQ) Coal Mine, the development law of the WCFZ in the GSED fully mechanized caving face was studied by means of formula calculation, on-site measurement, theoretical analysis, and simulation. The research results disclose that the development height of the WCFZ in the GSED fully mechanized caving face is affected by narrow coal pillars of GSED. When the narrow coal pillars lose stability, the overburden failure changes from insufficient mining to sufficient mining, and the WCFZ in the overburden changes from an arch-shaped one to a saddle-shaped one. Additionally, the development height of the WCFZ surges. |
| first_indexed | 2024-03-10T03:21:28Z |
| format | Article |
| id | doaj.art-c03731c76d964c129d713c781c691dd0 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T03:21:28Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-c03731c76d964c129d713c781c691dd02023-11-23T12:18:29ZengMDPI AGMinerals2075-163X2022-04-0112555710.3390/min12050557Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case StudyYi Tan0Han Xu1Weitao Yan2Wenbing Guo3Qi Sun4Dawei Yin5Yujiang Zhang6Xiaoqiang Zhang7Xiaofei Jing8Xiaoshuang Li9Sijiang Wei10Xiao Liu11School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaState Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaCollege of Architecture and Transportation, Liaoning Technical University, Fuxin 123000, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266000, ChinaCollege of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaSchool of Safety Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Civil Engineering, Shaoxing University, Shaoxing 312000, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaThis study is aimed at exploring the influence of narrow coal pillars in gob-side entry driving (GSED) on the development height of the water-conducting fracture zone (WCFZ) in the fully mechanized caving face. In reference to the geological mining conditions of working face 11915 of Gequan (GQ) Coal Mine, the development law of the WCFZ in the GSED fully mechanized caving face was studied by means of formula calculation, on-site measurement, theoretical analysis, and simulation. The research results disclose that the development height of the WCFZ in the GSED fully mechanized caving face is affected by narrow coal pillars of GSED. When the narrow coal pillars lose stability, the overburden failure changes from insufficient mining to sufficient mining, and the WCFZ in the overburden changes from an arch-shaped one to a saddle-shaped one. Additionally, the development height of the WCFZ surges.https://www.mdpi.com/2075-163X/12/5/557gob-side entry drivingcoal pillar instabilityfully mechanized cavingwater-conducting fracture zone |
| spellingShingle | Yi Tan Han Xu Weitao Yan Wenbing Guo Qi Sun Dawei Yin Yujiang Zhang Xiaoqiang Zhang Xiaofei Jing Xiaoshuang Li Sijiang Wei Xiao Liu Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study Minerals gob-side entry driving coal pillar instability fully mechanized caving water-conducting fracture zone |
| title | Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study |
| title_full | Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study |
| title_fullStr | Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study |
| title_full_unstemmed | Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study |
| title_short | Development Law of Water-Conducting Fracture Zone in the Fully Mechanized Caving Face of Gob-Side Entry Driving: A Case Study |
| title_sort | development law of water conducting fracture zone in the fully mechanized caving face of gob side entry driving a case study |
| topic | gob-side entry driving coal pillar instability fully mechanized caving water-conducting fracture zone |
| url | https://www.mdpi.com/2075-163X/12/5/557 |
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