›› 2005, Vol. 26 ›› Issue (S1): 175-179.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on calculating method for rock-bolt crane girder design

JIN Feng-nian, WENG Jie, XU Hong-fa   

  1. Engineering Institute of Engineering Corps, PLA University of Science & Technology, Nanjing 210007, China
  • Received:2005-01-04 Published:2005-12-15

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Abstract: The rigid ultimate equilibrium method is the common calculating method for rock-bolt crane girder design. A main shortcoming of this calculating method is that the common calculating method cannot consider the deformation of the structure and the action between the rock-bolt crane girder and rock wall. Based on the analysis of the common calculating method of rock-bolt crane girder, some problems of the design methods are identified; and a new calculating method for rock-bolt crane girder which has involved deformation of rock wall, deformation of rock bolt and displacement of the crane girder is established. Meanwhile, a method for determining the coefficient of elastic counter force of rock wall is suggested. And a formula for calculating the level elastic stiffness coefficient of rock bolt is also set up by utilizing numerical method to simulating the pull-out test for rock bolts. In the last part, three examples are calculated using the normal method and the new one; and the results are compared with those from the numerical method.

Key words: rock-bolt crane girder, calculating method, rock bolt, elastic stiffness coefficient

CLC Number: 

  • TU 43
  • 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.
  • 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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