Nonlinear analysis of tunnels in clayey/sandy soil with a concrete lining

Youakim, Samer A; El-Metewally, S.E.E.; Chen, W.F.

doi:10.1016/s0141-0296(99)00008-5

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Youakim et al provided a model of non-linear combination of concrete and soil assuming huge deformations and studied the change of above parameters in the predicted settlement or changes in stress distribution in the tunnel entrance [17]. They used the increased stress-strain formula known as elastic hypochlorite model for the lining concrete structure failure because the concrete is an irreversible material and dependent on load.…”

Section: Introductionmentioning

confidence: 99%

“…This model is actually the extension of the hypo elastic basic model with the capacity to calculate biaxial and triaxial stress in which the tensile cracks and compressive failure conditions are considered. Furthermore, the t otal Lagrangian formula for the analysis of great deformations assuming the nonlinearity of the structure material and geometry as well as great displacements and rotations and small strains were considered in this study [17].…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear Lining Design Considering Soil-Lining Interaction, Case Study: Gilavand Tunnel

لواسانی¹,

طهرانی²

2017

jeg

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There are various methods for the analysis of the interactional behavior of the surrounding land, using the lining structure which is the most common method of deigning lining structure tools for the static loads by using the hyper static methods. In recent years, there has been a question that depicts whether this method provides the best results in designing the tunnel structure or not. Due to the nonlinear behavior of the earth surrounding the lining structure, utilizing the lining method could lead to conservative results in the design. If it is possible to somehow find the forces caused by the real behavior of the land surrounding the lining structure influencing the structure and conduct the design based on them, more optimal results would be obtained. This study is based on the actual behavior of the land surrounding the lining structure and the displacement of the structure caused by forces with linear behavior in the static design according to the non-linear behavior of the land around the tunnel structure. The * Corresponding author lavasani@khu.ac.ir 3720Journal of Engineering Geology, Vol. 10, No. 4, Winter 2017 behavior is modeled using the non-linear programs and the forces affecting the lining of the structure will be inference. Also there is a case study based on this method in which the soil interaction with the tunnel analysis and designing the lining structure was first performed and eventually the obtained results were compared with the hyper static method. In this paper, analysis of maintenance system with lower thicknesses considering land-shield, indicated that applying the reinforced concrete with 40cm thickness has the potential to tolerate the applied load but lining with 45cm thickness is capable of tolerating the loads of design and it can be concluded that applying the simulation method combined with the soil and structure besides considering the nonlinear behavior of the soil leads to more economical results in a project.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear Lining Design Considering Soil-Lining Interaction, Case Study: Gilavand Tunnel

لواسانی¹,

طهرانی²

2017

jeg

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“…Dynamic behavior of tunnels subjected to seismic loading has been widely studied by a number of researchers [3][4][5]. There are two basic approaches in present seismic design and analysis of tunnel structures.…”

Section: Introductionmentioning

confidence: 99%

Seismic Analysis of Long Tunnel: Simplified or Unified

Yuan¹,

Yu²

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…From the third category researches conducted by Chang et al [18], Youakim et al [19], Khanloo et al [20], Swaddiwudhipong et al [21], Chin et al [22], Polak et al [23], Esmond [24], Sathurappan [25], Roca et al [26], Bathe et al [27] and Moradloo et al [28] can be mentioned. Some of these nonlinear geometry studies were carried out on concrete dams and some on other concrete structures.…”

Section: Introductionmentioning

confidence: 99%

“…Nonlinear analysis of tunnels with concrete lining bored into sandy soils was carried out by Youakim et al [19]. The nonlinear behavior of the problem at hand originated from three sources; nonlinear material behavior of the concrete lining and the soil enclosing it, the effects of large deformations and the nonlinear nature of the sliding between concrete lining and the soil it is in contact with.…”

Section: Introductionmentioning

confidence: 99%

Geometric Nonlinearity Effect on Seismic Behavior of High Arch Dams

Zeinizadeh¹,

Mirzabozorg²

2012

JCE

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In this research, geometrically nonlinear dynamic analysis of arch concrete dam is attempted. At first, suitable models for large deformation analysis of massive plain concrete structures are investigated and by considering arch dam special features and properties, proper model for large displacement analysis is developed. A nonlinear analysis of the Dez arch dam using the engineering stress -strain model for large displacements is carried out under MCE ground motion. Fluid-Structure interaction is modeled including water compressibility and reservoir bottom absorption and the rock foundation is modeled as a mass-less flexible medium. Joint nonlinearity is also taken into consideration in the analysis. The penetration of water in opening joint during the earthquake is also considered and the significance of nonlinear geometry effects when accompanied by hydrodynamic pressure in joints is investigated. It is indicated that considering large deformation effects could be magnified when water penetration into opening joints is permitted. The obtained results showed that because the structural behavior of an arch dam does not allow large strains in a general manner, one can rule out the appearance of large displacements in the models including linear material.

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Nonlinear analysis of tunnels in clayey/sandy soil with a concrete lining

Cited by 12 publications

References 5 publications

Nonlinear Lining Design Considering Soil-Lining Interaction, Case Study: Gilavand Tunnel

Nonlinear Lining Design Considering Soil-Lining Interaction, Case Study: Gilavand Tunnel

Seismic Analysis of Long Tunnel: Simplified or Unified

Geometric Nonlinearity Effect on Seismic Behavior of High Arch Dams

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