›› 2014, Vol. 35 ›› Issue (11): 3079-3085.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Theoretical solution of longitudinal upward movement of underwater shield tunnel and its application

WANG Dao-yuan1, 2, 3, YUAN Jin-xiu2, ZHU Zheng-guo3, ZHU Yong-quan3   

  1. 1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. Department of Civil Engineering, Hebei Jiaotong Vocational and Technical College, Shijiazhuang 050091, China; 3. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • Received:2013-07-17 Online:2014-11-11 Published:2014-12-10

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Abstract: Considering the factors of static buoyancy and dynamic buoyancy, time variation of grout and compression of the overburden soil, based on curved differential equation of elastic foundation beam, finite element theory, boundary conditions and the coordination equations for deformation, angle rotation, shear and bending moment, a theoretical solution for longitudinal upward movement of underwater shield tunnel is obtained. It was applied to comprehensive pipe Project of Caofeidian Industrial Zone Gallery known as ‘the 1st shield of Hebei. The computation example of engineering shows that the maximum error of theoretical solution and numerical solution is within 2.5%. Furthermore, the result obtained by the proposed theoretical solution is well consistent with the monitoring result of normal excavation section and can be used to analyze the longitudinal upward movement of shield tunnel. Moreover, the theoretical solution has got rid of the tedious process when numerical model established and unit refined, so it will be accepted more easily by constructers or designers, so as to provide some reference to perfect the related design specifications.

Key words: shield tunnel, longitudinal upward movement, theoretical solution, elastic foundation beam

CLC Number: 

  • U 452
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