›› 2006, Vol. 27 ›› Issue (11): 1897-1901.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on vertical structural stability of bored shafts filled part of water

NIU Xue-chao1, 2, HONG Bo-qian3, YANG Ren-shu2   

  1. 1. Department of Architecture Engineering, Beijing Vocational and Technical Institute of Industry, Beijing 100042, China; 2. School of Mechanics and Civil Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China; 3. China Coal Research Institute, Beijing 100013, China
  • Received:2004-11-15 Online:2006-11-10 Published:2013-12-04

Abstract: The concept of depth limit for the method applied to sinking of shaft lining by means of floatation in shaft boring that is widely utilized in mine construction in China was put forward. The mechanical state of shaft lining filled part of water when its pan touching the base rock of shaft bottom was analyzed. Contacting with the technical characteristic of shaft lining sinking by means of floatation, the calculation model of shaft lining filled part of water in mud before fixed, as a self-gravitating bar in liquid, was set-up. Based on energy methods as well as the principle of structural stability theory and hydromechanics theory, the analytical equation for vertical structure stability critical height of shaft cylinder filled part of water was calculated. A typical example was persuasively analyzed. The attention to use the equation was emphasized in shaft design and its construction. Finally, its further research contents and direction are pointed out.

Key words: sinking of shaft lining by means of floatation, bored shaft, self-gravitating bar, structural stability

CLC Number: 

  • TD 351
  • 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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