Have a personal or library account? Click to login
Modeling of rigid inclusion ground improvements in large-scale geotechnical simulations Cover

Modeling of rigid inclusion ground improvements in large-scale geotechnical simulations

By: Jakub Rainer and  Mariusz Myszor  
Open Access
|Jul 2024

Figures & Tables

Figure 1:

Scheme of the reference problem.
Scheme of the reference problem.

Figure 2:

Numerical model for Approach I: (a) model subdivision by type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.
Numerical model for Approach I: (a) model subdivision by type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.

Figure 3:

Numerical model for Approach II: (a) model subdivision by the type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.
Numerical model for Approach II: (a) model subdivision by the type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.

Figure 4:

Numerical model for Approach III: (a) model subdivision by the type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.
Numerical model for Approach III: (a) model subdivision by the type of continuum material; (b) finite element mesh-axonometric view; and (c) finite element mesh-top view.

Figure 5:

Comparison of displacement maps according to selected design approaches.
Comparison of displacement maps according to selected design approaches.

Figure 6:

Comparison of total vertical stress maps according to selected design approaches.
Comparison of total vertical stress maps according to selected design approaches.

Figure 8:

Cross section through the dam.
Cross section through the dam.

Figure 9:

Numerical model of the area under consideration.
Numerical model of the area under consideration.

Figure 10:

Visualization of construction stages of the dam.
Visualization of construction stages of the dam.

Figure 11:

Contour plot of vertical displacement at the foundation level of the conduit pipe.
Contour plot of vertical displacement at the foundation level of the conduit pipe.

Figure 12:

Displacement Y of conduit on deformed mesh: (a) perspective view (b) side view.
Displacement Y of conduit on deformed mesh: (a) perspective view (b) side view.

Figure 13:

An example view of the RVE model (yellow color – column, blue color – soil).
An example view of the RVE model (yellow color – column, blue color – soil).

Figure 14:

Displacement Y of the conduit on the deformed mesh for Approach II: (a) perspective view (b) side view.
Displacement Y of the conduit on the deformed mesh for Approach II: (a) perspective view (b) side view.

Figure 15:

Displacement Y of the conduit on the deformed mesh for Approach III: (a) perspective view and (b) side view.
Displacement Y of the conduit on the deformed mesh for Approach III: (a) perspective view and (b) side view.

List of elastic parameters for soil without column with comparison to equivalent medium corresponding to specific soil with inclusion_

LayerEoνEo, effνeff

-MPa-MPa-
IIIa220.3723630.01
B1450.4424570.05
Cb1350.4825690.10
B21400.4226240.09
B31800.4327240.12
Cb21500.4627960.17

List of geotechnical parameters for rock layers_

Rock layers adopted for computationsDepth rangeDensity PDeformation modulus EoPoisson ratio νFriction angle □Cohesion c
-mg/cm3MPa-°kPa
A-2.22180.2521.0500
B<62.25450.4419.0400
B6–142.251400.4219.0400
B>142.351800.4319.0400
Ca-2.28420.4618.0100
Cb1<162.35350.4818.5200
Cb2>162.351500.4618.5200
Cc-2.2540.4518.5200
D-2.15140.5019.0400

List of geotechnical parameters for soils_

Layer nameSoil typeLiquidity index/density indexDensity ρModulus EoPoisson ratio νFriction angle fCohesion c

---g/cm3MPa-°kPa
Soils
IIcsiCl, saClIL<0.252.086.00.321130
IIdsiCl, saCl0.25< IL <0.52.003.90.32820
IIesiCl, saCl0.5< IL <1.01.983.60.32610
IIbGr, saGr0.33<ID<0.671.90800.32380
IIaMSa0.33<ID<0.671.75600.32320
IIcsaCl0.25< IL <0.52.15270.322320
IIfgrCl0.5< IL <1.02.1290.321810
IIIaClIL <02.15220.371360
IIIbCl0< IL <0.252.00170.371152
IIIcCl0.25< IL <0.51.85120.37944
Dam body2.20550.32330
Impermeable core2.20250.31515

Summary of displacement values_

Maximum vertical displacement of the conduit pipeMaximum difference in displacement between subsequent segments
Subsoil without columns6.2 cm2.2 cm
Subsoil with column (Approach II)3.7 cm0.9 cm
Subsoil with column (Approach III)2.6 cm0.8 cm
DOI: https://doi.org/10.2478/sgem-2024-0014 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
Language: English
Page range: 207 - 222
Published on: Jul 27, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Jakub Rainer, Mariusz Myszor, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.