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| TECHNOLOGY AND APPLICATION OF REPARATION IN DEEP GOB-SIDE ENTRY RETAINING |
| ZHANG Nong1，2，3，ZHANG Zhiyi1，2，WU Hai1，2，3，CAO Peng1，2 |
(1. School of Mines，China University of Mining and Technology，Xuzhou，Jiangsu 221116，China；2. Key Laboratory of Deep
Coal Resources Mining of Ministry of Education，China University of Mining and Technology，Xuzhou，Jiangsu 221116，
China；3. Hunan Key Laboratory of Safe Mining Techniques of Coal Mines，Hunan University of Science
and Technology，Xiangtan，Hunan 411201，China) |
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Abstract Based on the gob-side entry retaining reparation engineering of first coal mining face in Zhuji mine around 900 m underground，deformation，stress and structure state of roadway surrounding rock before reparation were analyzed by field measurement and theoretical method；the conception of“critical structure between instability and stability”of gob-side entry retaining reparation was proposed；reasonable repairing time and construction process were determined；initiative-passive collaborative supporting system was concluded. Research result was applied to the gob-side entry retaining reparation engineering in Zhuji mine successfully. The results of ground pressure monitoring show that the deformation of this repaired roadway is controlled effectively；and all indices satisfy the requirements of next mining face.
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Received: 05 May 2013
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DONG Xuechao1, 2, LU Zheng1, 2, ZHENG Qinggang3, JIANG Fan4, LI Jiahang1, 2, GUO Mingwei1, 2*. Numerical simulation method and application for the entire dynamic sinking process of a deep-water super-large caisson foundation[J]. , 2026, 45(6): 1899-1912. |
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2014, Vol. 33 
