A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China
Through the analysis of the project of gob-side entry retaining in the deep gangue filling 2305S-2# working face of the Xinjulong coal mine, the principle and technology of surrounding rock control of gob-side entry retaining along the deep mining face are discussed. It is found that the use of gang...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8849093 |
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| author | Ping Wang Li Ding Yuan-jun Ma Tao Feng Guang-jing Sun Yong-jian Zhu Heng Ren Peng Li Yu-qun Zhang Xi-Zhi Wang |
| author_facet | Ping Wang Li Ding Yuan-jun Ma Tao Feng Guang-jing Sun Yong-jian Zhu Heng Ren Peng Li Yu-qun Zhang Xi-Zhi Wang |
| author_sort | Ping Wang |
| collection | DOAJ |
| description | Through the analysis of the project of gob-side entry retaining in the deep gangue filling 2305S-2# working face of the Xinjulong coal mine, the principle and technology of surrounding rock control of gob-side entry retaining along the deep mining face are discussed. It is found that the use of gangue to fill the goaf of the deep mining face can effectively alleviate the occurrence of violent strata pressure, which is the basis for realizing entry retaining along the goaf. In the Xinjulong coal mine, the gangue wall and concrete-filled steel tube columns are used as roadside support structure. Anchor bolt + W steel belt are used as advance support, monomer column + hinged beam are used as temporary support, and long anchor cable + beam are used as permanent support. Gob-side entry retaining of deep mining working face is successfully realized. The actual measurement results show that the bearing capacity of gangue wall increases slowly, and the deformation is large. The concrete-filled steel tube column has a certain drilling bottom, and the roof cable is easily broken on the side of the remaining roadway. It is necessary to strengthen the lateral constraint of the gangue wall, limit the deformation of the gangue wall, and improve the bearing capacity of the gangue wall. The bottom of the concrete-filled steel tube column needs to be installed with a large backing plate to control the bottom drilling amount, and the roof anchor cable of the roadway must have a certain elongation to realize the coordinated deformation of the anchor cable and the roof. |
| format | Article |
| id | doaj-art-a358510956644e6facd06ec6b6a8ad02 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
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| series | Advances in Civil Engineering |
| spelling | doaj-art-a358510956644e6facd06ec6b6a8ad022025-08-20T02:20:32ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88490938849093A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, ChinaPing Wang0Li Ding1Yuan-jun Ma2Tao Feng3Guang-jing Sun4Yong-jian Zhu5Heng Ren6Peng Li7Yu-qun Zhang8Xi-Zhi Wang9Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Goal Mines, Xiangtan 411201, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, ChinaWork Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Goal Mines, Xiangtan 411201, ChinaShandong Energy Xinwen Mining Group Co., Ltd., Tai’an 271200, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaSchool of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, ChinaThrough the analysis of the project of gob-side entry retaining in the deep gangue filling 2305S-2# working face of the Xinjulong coal mine, the principle and technology of surrounding rock control of gob-side entry retaining along the deep mining face are discussed. It is found that the use of gangue to fill the goaf of the deep mining face can effectively alleviate the occurrence of violent strata pressure, which is the basis for realizing entry retaining along the goaf. In the Xinjulong coal mine, the gangue wall and concrete-filled steel tube columns are used as roadside support structure. Anchor bolt + W steel belt are used as advance support, monomer column + hinged beam are used as temporary support, and long anchor cable + beam are used as permanent support. Gob-side entry retaining of deep mining working face is successfully realized. The actual measurement results show that the bearing capacity of gangue wall increases slowly, and the deformation is large. The concrete-filled steel tube column has a certain drilling bottom, and the roof cable is easily broken on the side of the remaining roadway. It is necessary to strengthen the lateral constraint of the gangue wall, limit the deformation of the gangue wall, and improve the bearing capacity of the gangue wall. The bottom of the concrete-filled steel tube column needs to be installed with a large backing plate to control the bottom drilling amount, and the roof anchor cable of the roadway must have a certain elongation to realize the coordinated deformation of the anchor cable and the roof.http://dx.doi.org/10.1155/2020/8849093 |
| spellingShingle | Ping Wang Li Ding Yuan-jun Ma Tao Feng Guang-jing Sun Yong-jian Zhu Heng Ren Peng Li Yu-qun Zhang Xi-Zhi Wang A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China Advances in Civil Engineering |
| title | A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China |
| title_full | A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China |
| title_fullStr | A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China |
| title_full_unstemmed | A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China |
| title_short | A Case Study on Gob-Side Entry Retaining Technology in the Deep Coal Mine of Xinjulong, China |
| title_sort | case study on gob side entry retaining technology in the deep coal mine of xinjulong china |
| url | http://dx.doi.org/10.1155/2020/8849093 |
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