• ISSN 0258-2724
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Volume 27 Issue 4
Jul.  2014
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Article Contents
Journal of Southwest Jiaotong University  > 2014  >  27(4): 637-641.
LENG Biao, QIU Wenge, GONG Lun. Static Mechanics Impact Analysis of Newly-Built Tunnel beneath Existing Tunnel Based on Extenics Theory[J]. Journal of Southwest Jiaotong University, 2014, 27(4): 637-641. doi: 10.3969/j.issn.0258-2724.2014.04.012
Citation: LENG Biao, QIU Wenge, GONG Lun. Static Mechanics Impact Analysis of Newly-Built Tunnel beneath Existing Tunnel Based on Extenics Theory[J]. Journal of Southwest Jiaotong University, 2014, 27(4): 637-641. doi: 10.3969/j.issn.0258-2724.2014.04.012
shu

Static Mechanics Impact Analysis of Newly-Built Tunnel beneath Existing Tunnel Based on Extenics Theory

doi: 10.3969/j.issn.0258-2724.2014.04.012
  • Received Date: 31 Dec 2012
  • Publish Date: 25 Aug 2014
    Abstract
  • In order to discuss the static mechanics impact degree of a newly-built below-crossing tunnel on an existing tunnel, the extenics matter-element theory was applied. An evaluating model about the static mechanics impact degree was established by considering the relationship between the newly-built tunnel and the existing tunnel, including the principal elements of existing tunnel's radius, newly-built tunnel's radius, net distance between the two tunnels, surrounding rock grade and existing tunnel depth. In addition, the evaluating result for a project example based on this model was compared with its actual effect. The comparison result shows that the established model is able to satisfy the practical projects' needs, so it can be used to the qualitative analysis and quantitative evaluation towards the static mechanics impact of below-crossing tunnel.

     

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