A simplified 3D model for tunnel construction using tunnel boring machines

Mroueh, Hussein; Shahrour, Isam

doi:10.1016/j.tust.2006.11.008

Cited by 82 publications

(24 citation statements)

References 2 publications

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“…Previous study on three-dimensional analysis of TBM tunneling [22] indicated that a lateral distance of 4DT from the tunnel axis and the advancement of 4DT ahead and behind the tunnel excavation face are sufficient for 3D FE mesh of tunneling problem. Thus, the distance of 5DT ahead and behind the monitoring section, and of 6DT in lateral direction from the tunnel axis, are enough to fully simulate the tunneling problem in this study.…”

Section: Numerical Modelmentioning

confidence: 99%

Tunneling Simulation in Soft Ground Using Shell Elements and Grouting Layer

Lueprasert¹

2017

GEOMATE

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ABSTRACT:With the advancement of computer sciences and researches on tunneling simulation in the past, the 3D finite element analysis of tunnel excavation by Tunnel Boring Machines (TBMs) has been extensively used over the last decade. Due to that the complicated construction sequences and relevant loads can be taken into account, complex interaction problems can then be performed. Many simulation techniques have been proposed depending on the assumptions used in the modeling. For modeling the tunnel lining, solid elements are commonly used due to the ratio between the width and thickness of the lining is not large. In addition, most studies focused on the ground deformation, not the lining forces. In the circumstance that the lining forces are essentially observed, the structural elements that directly provide the values are preferred. Therefore, this research attempts to propose the shell elements as tunnel lining together with the grouting layer in the analysis. The analysis results from the proposed method and the conventional one are compared and discussed in terms of ground deformation and lining forces together with the field measurement data. The results reveal that the simulation by the proposed method is sufficient and can reasonably reproduce the soil and lining responses.

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Section: Numerical Modelmentioning

confidence: 99%

Tunneling Simulation in Soft Ground Using Shell Elements and Grouting Layer

Lueprasert¹

2017

GEOMATE

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“…The calibration results are presented in Table 2. The tunnel construction process is modelled using a step-by-step approach, as this has been done by other authors (Jenck and Dias, 2003;Melis et al, 2002;Swoboda et al, 2004;Kasper and Meschke, 2004;Mroueh and Shahrour, 2008;Boubou, 2010;Mollon et al, 2013;Oreste, 2003;Oreste, 2013). Accordingly, each excavation step corresponds to an advancement of the tunnel face of 1.5 m, which is equal to the width of a lining ring.…”

Section: Parameter Calibrationmentioning

confidence: 99%

“…In this study, the face pressure has been modelled by applying a pressure distribution to the excavation face (Melis et al, 2002;Kasper and Meschke, 2004;Mroueh and Shahrour, 2008;Lambrughi et al, 2012;Mollon et al, 2013), using a trapezoidal profile in order to account of the slurry density. The unit weight of the slurry is taken equal to 11 kN/m 3 .…”

Section: Simulation Of Different Phases Of the Mechanized Tunnelling mentioning

confidence: 99%

3d Modelling for Mechanized Tunnelling in Soft Ground-Influence of the Constitutive Model

Anh

Dias

Oreste³

et al. 2013

American Journal of Applied Sciences

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The main purpose of this study was to provide a three-dimensional numerical model which would allow to show the influence of the constitutive model of the ground on the tunnel lining behaviour and displacement field surrounding the tunnel. Most of the processes that occur during mechanized excavation have been simulated in this model. Besides the well-known elastic linear perfectly plastic model with Mohr Coulomb failure criteria (MC), the Cap-Yield model (CYsoil), which is a strain hardening constitutive model that takes into consideration the hyperbolic behaviour of the soil has also been adopted. The results have shown a considerable effect of the constitutive model on the tunnel behavior and the ground displacement field. Generally, the CYsoil model produces higher structural force and ground settlement values than those predicted by the MC model.

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“…Sun et al carried out dynamics modeling to estimate the dynamics of a TBM; a multidegree-of-freedom coupling dynamic model was presented to obtain the cutterhead joint surface loads [6,7]. In addition, much work has been done in an effort to understand the complex behavior of TBM and considerable information of value has been obtained [8][9][10][11][12]. However, the aforementioned research falls into the category of conventional deterministic analysis, in which the effect of statistical variation has not been taken into account.…”

Section: Introductionmentioning

confidence: 99%

Surrogate-Based Multisource Sensitivity Analysis of TBM Driving System

Sun

Shi

et al. 2018

Shock and Vibration

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TBM cutterhead driving system is generally an extraordinarily large and complex machine containing lots of parameters; understanding and assessment of its dynamic characteristics are a great challenge as each of these parameters has uncertainty. In this work, a hierarchical modeling method for the dynamic model of the complex gear transmission system is proposed based on the generalized finite element modeling idea. On this basis, the whole machine dynamic model of cutterhead driving system is established; both the characteristics of vibration responses and the meshing force are revealed. Vibration responses under the action of simulated load are estimated and verified by comparing with the data measured on the tunneling field, where the error is about 18%∼50%. With the vibration response of the key nodes and the dynamic meshing force for the system dynamic characteristic evaluation index, considering the change of input parameters such as external loads, material parameters, meshing parameters, and coupling parameters, the global parameter sensitivity of system dynamic characteristics is analyzed based on the technology of surrogate model. Finally, variation of dynamic characteristics considering the interaction of polytypic parameters is obtained.

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A simplified 3D model for tunnel construction using tunnel boring machines

Cited by 82 publications

References 2 publications

Tunneling Simulation in Soft Ground Using Shell Elements and Grouting Layer

Tunneling Simulation in Soft Ground Using Shell Elements and Grouting Layer

3d Modelling for Mechanized Tunnelling in Soft Ground-Influence of the Constitutive Model

Surrogate-Based Multisource Sensitivity Analysis of TBM Driving System

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