›› 2005, Vol. 26 ›› Issue (6): 877-880.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of surrounding rock stability of deeply buried roadways and study on its control techniques

JING Hong-wen, LI Yuan-hai, XU Guo-an   

  1. School of Architecture and Civil Engineering, China University of Mining & Technology, Xuzhou 221008, China
  • Received:2005-02-28 Online:2005-06-10 Published:2013-12-17

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Abstract: Based on the rock characteristics of strain-softening and dilatancy, this paper developed a theoretical formula for calculating broken zone thickness of roadways, analyzed the influence of buried depth, rock strength, strain-softening extent, and support pressure on the surrounding rock stability of the deeply buried roadways. The new concept of ‘three bolting’ support is put forward, which refers to a supporting method combining bolt and shotcrete, grout, and anchorage cable. This new supporting method has been applied to engineering practice; and favorable technical and economic benefit is obtained.

Key words: deeply buried roadway, surrounding rock stability, broken zone, ‘three bolting&rsquo, support

CLC Number: 

  • TU 457
  • 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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