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PLAXIS | SOILVISION Wiki PLAXIS 2D Tutorial 02: Submerged construction of an excavation
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          • -Tutorials PLAXIS 2D
            • PLAXIS 2D Tutorial 01: Settlement of a circular footing on sand
            • PLAXIS 2D Tutorial 02: Submerged construction of an excavation
            • PLAXIS 2D Tutorial 03: Dry excavation using a tie back wall
            • PLAXIS 2D Tutorial 04: Dry excavation using a tie back wall - ULS
            • PLAXIS 2D Tutorial 05: Construction of a road embankment
            • PLAXIS 2D Tutorial 06: Settlements due to tunnel construction
            • PLAXIS 2D Tutorial 07: Excavation of an NATM tunnel
            • PLAXIS 2D Tutorial 08: Cyclic vertical capacity and stiffness of circular underwater footing
            • PLAXIS 2D Tutorial 09: Stability of dam under rapid drawdown
            • PLAXIS 2D Tutorial 10: Flow through an embankment
            • PLAXIS 2D Tutorial 11: Flow around a sheet pile wall
            • PLAXIS 2D Tutorial 12: Potato field moisture content
            • PLAXIS 2D Tutorial 13: Dynamic analysis of a generator on an elastic foundation
            • PLAXIS 2D Tutorial 14: Pile driving
            • PLAXIS 2D Tutorial 15: Free vibration and earthquake analysis of a building
            • PLAXIS 2D Tutorial 16: Thermal expansion of a navigable lock
            • PLAXIS 2D Tutorial 17: Freeze pipes in tunnel construction
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    PLAXIS 2D Tutorial 02: Submerged construction of an excavation

    Application PLAXIS 2D
    Version PLAXIS 2D
    Date created 20 May 2017
    Date modified 20 May 2017

    This lesson illustrates the use of PLAXIS for the analysis of submerged construction of an excavation. Most of the program features that were used in the previous chapter will be utilised here again. In addition, some new features will be used, such as the use of interfaces and anchor elements, the generation of water pressures and the use of multiple calculation phases. The new features will be described in full detail, whereas the features that were treated in the previous lesson will be described in less detail. Therefore it is suggested that the previous lesson should be completed before attempting this exercise.

    This tutorial concerns the construction of an excavation close to a river. The excavation is carried out in order to construct a tunnel by the installation of prefabricated tunnel segments. The excavation is 30 m wide and the final depth is 20 m. It extends in longitudinal direction for a large distance, so that a plane strain model is applicable. The sides of the excavation are supported by 30 m long diaphragm walls, which are braced by horizontal struts at an interval of 5.0 m.

     

    The attached *.p2dxlog file contains all the commands to generate the model. With a Bentley Geotechnical SELECT Entitlement [GSE] (former PLAXIS-VIP) licence, you can use the commands runner to open the *.p2dxlog file and to execute all commands in one go, see also this instruction.

    Downloads

    • PLAXIS 2D 2018 - Tutorial Lesson 02.pdf
    • PLAXIS 2D 2018 - Tutorial Lesson02.p2dxlog [command log file]
    • PLAXIS 2D 2017 - Tutorial Lesson 02.pdf

    See also

    PLAXIS 2D Tutorial 01: Settlement of a circular footing on sand

    [Tutorials]


    PLAXIS 2D Tutorial 03: Dry excavation using a tie back wall

    [Tutorials]

    • FE anchor
    • Tutorial
    • fixed end
    • anchor
    • PLAXIS
    • PLAXIS 2D
    • excavation
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    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Wed, Dec 18 2019 10:42 AM
    • Micha van der Sloot Last revision by Bentley Colleague Micha van der Sloot
    • When: Tue, Dec 24 2019 6:13 AM
    • Revisions: 3
    • Comments: 0
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