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PLAXIS - communities.bentley.com
PLAXISCONNECT Edition 2D - Tutorial Manual - Dry excavation using a tie back wall [ADV]Last Updated: March 16, 2021 1 Dry excavation using a tie back wall [ADV]This example involves the dry construction of an excavation. The excavation is supported by concrete diaphragmwalls. The walls are tied back by prestressed ground 2D allows for detailed modelling of this type of problem. It is demonstrated in this example how groundanchors are modelled and how prestressing is applied to the anchors. Moreover, the dry excavation involves agroundwater flow calculation to generate the new water pressure distribution. This aspect of the analysis isexplained in Modelling ground anchors. Generating pore pressures with a groundwater flow calculation. Displaying the contact stresses and resulting forces in the model. Scaling the displayed excavation is 20 m wide and 10 m deep. 16 m long concrete diaphragm walls of m thickness are used toretain the surrounding soil.
Mar 16, 2021 · Table 2: Material properties of the diaphragm wall (plate) Parameter Name Value Unit Material type - Elastic - Isotropic - Yes - Axial stiffness EA 1 12 · 10 6 kN/m Bending stiffness EI 120 · 10 3 kNm 2/m Equivalent thickness d 0.3464 m
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