ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction ›› 2013, Vol. 33 ›› Issue (9): 731-734.DOI: 10.3973/j.issn.1672-741X.2013.09.005

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Fuzzy Evaluation of the Shield Docking Plan in the Construction of the Shiziyang Tunnel

WANG Lianshan1, 2, XI Zhengping3   

  1. (1. State Key Laboratory of Shield Machine and Boring Technology, Zhengzhou 450001, Henan, China; 2. China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China; 3. China Railway Tunnel Stock Co., Ltd., Zhengzhou 450001, Henan, China)
  • Received:2013-04-02 Revised:2013-08-08 Online:2013-09-18 Published:2013-09-18

Abstract:

There are many determining factors and uncertain boundary conditions in the design of a shield docking plan in a long tunnel construction. In this paper, quantitative analysis is made on the shield docking plan for the construction of the Shiziyang tunnel of the GuangzhouShenzhenHongkong passenger railway, by calculating the limit values of the object functions on the basis of fuzzy mathematics’ membership function. Three shield docking plans, i.e., the mechanical docking plan, the directboring docking plan and the groundconsolidation docking plan, are compared in terms of equipment requirement, ground consolidation requirement, safety, quality and economic efficiency. The advantages of the directboring docking plan, which was adopted in the construction of the tunnel, are analyzed.

Key words: tunnel, shield docking, fuzzy mathematics, directboring docking