Finite Element Analysis for the Stress Field and Seepage Field Interaction within Qingdao Submarine Tunnel Rockmass

Cheng Li; Tai Quan Zhou; Sha Sha Jiang; Jie Kong

doi:10.4028/www.scientific.net/AMM.405-408.1278

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 405-408Finite Element Analysis for the Stress Field and...

Finite Element Analysis for the Stress Field and Seepage Field Interaction within Qingdao Submarine Tunnel Rockmass

Abstract:

The submarine geology characteristic for Qingdao submarine tunnel is fracture and fragmentation with smash rock mass and unevenly distributed rock mass strength. The submarine tunnel is excavated in a weathered rock mass containing water. Before the tunnel lining is constructed, it is important to assure the stability and safety for the rock tunnel and tunnel lining structure during construction and operational periods. As the submarine tunnel is under severe condition, the rock mass stabilization is to a large extent to be determined by the underwater seepage effect. It is fundamental to investigate how the seawater interacts with the tunnel rock mass stress field. To investigate the interaction between the rock mass seepage field and the secondary stress field, the nonlinear finite element software ABAQUS is used to analyze the interaction behavior between the rock mass seepage effect and the tunnel secondary stress field. The rock mass seepage field, stress field are analyzed in detail using the numerical simulation method. Also, the distribution of the tunnel rock mass plastic region is obtained. The numerical analysis results provide guidance for the submarine tunnel construction.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

1278-1282

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.1278

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Online since:

September 2013

Authors:

Cheng Li, Tai Quan Zhou, Sha Sha Jiang, Jie Kong

Keywords:

Fluid Solid Coupling, Nonlinear Finite Element Method, Plastic Region, Rock Mass Stress Field, Seepage Field, Submarine Tunnel

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References

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