›› 2006, Vol. 27 ›› Issue (12): 2225-2228.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on combined support technique of gob-side entry retaining

HUA Xin-zhu1, 2, ZHAO Shao-hua3, ZHU Hao3, HU Hua-jun3   

  1. 1. Dept. of Resources Exploitation and Management, Anhui University of Science and Technology, Huainan 232001, China; 2. Dept. of Resources and Safety Engineering, Beijing Campus, China University of Mining and Technology, Beijing 100083, China; 3. Daihe Coal Mine, Huaibei Mining Group Corporation, Huaibei 235046, China
  • Received:2005-06-21 Online:2006-12-11 Published:2013-12-09

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Abstract: The maintained roadway by applying gob-side entry retaining technique will undergo the impact of excavation and two-time intensive mining. In order to insure to apply gob-side entry retaining technique successfully, some factors that include the supporting design and construction during excavating, the selection of roadside supporting way during retaining the roadway and the reinforced supporting method during actual mining of next working face should been systematically taken into account for the roadway which needs retaining. So the gob-side entry retaining technique is a systems engineering. According to this point, a test of gob-side entry retaining technique has been practised in transportation roadways of No. Ⅲ3215 working face in Daihe Coal Mine, Huaibei Mining Group Corporation. It is used bolt-mesh-cable support in the roadway, dense I-steel pillar and gangue or broken coal wall support roadside. The ground pressure behavior regularity of retaining roadway were obtained based on the ground pressure observation. Industrial test and application practice show that the good tech-economic effect has been achieved.

Key words: gob-side entry retaining, roadside supporting, bolt-mesh-cable support, combined support

CLC Number: 

  • TU 353
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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[2] YANG Peng, HUA Xin-zhu, LI Ying-fu, LIU Qin-jie, YANG Sen. Backfill horizontal stability analysis of gob-side entry retaining with compound roof in deep mine [J]. , 2018, 39(S1): 405-411.
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[7] ZHANG Zi-zheng , BAI Jian-biao , CHEN Yong , LI Meng , . Investigation and application analysis of unbalanced bearing characteristics of gob-side entry retaining [J]. , 2015, 36(9): 2665-2673.
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[9] CHEN Yong , BAI Jian-biao , ZHU Tao-lei , YAN Shuai , ZHAO She-hui , LI Xue-chen . Mechanisms of roadside support in gob-side entry retaining and its application [J]. , 2012, 33(5): 1427-1432.
[10] LI Ying-fu，HUA Xin-zhu. Mechanical analysis of stability of key blocks of overlying strata for gob-side entry retaining and calculating width of roadside backfill [J]. , 2012, 33(4): 1134-1140.
[11] KAN Jia-guang ，ZHANG Nong ，LI Bao-yu ，SI Guang-yao. Analysis of supporting resistance of backfilling wall for gob-side entry retaining under typical roof conditions [J]. , 2011, 32(9): 2778-2784.
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