Section 7: Typical Models Design Procedure
- Rana Jdidi
- Feb 13, 2024
- 7 min read
Updated: May 20
SECTION 7: TYPICAL MODELS DESIGN PROCEDURE
In most cases, a model creation with the correct, strict staging can lead to the most efficient solutions, taking into consideration all possible parameters that can affect a project.
This section includes our recommendations for the creation of several typical model types with the DeepEX tools. A combination of the methods and staging recommendations in this section can lead to the design of more composite models and scenarios.
7.1 Create a Cantilever Excavation Model Manually
A cantilever excavation is the simplest model that can be designed in DeepEX. Here we will present how to create a cantilever excavation model manually.
A. Stage 0 – Define basic project properties:
A1. Set general ground surface elevation and modify surface points
A2. Define soil properties and stratigraphy
A3. Define wall properties (wall position, structural section and depth)
A4. Draw external loads
A5. Define water table
Figure 7.1.1: DeepEX Model: Cantilever Excavation - Stage 0
B. Add Stage 1 – Excavate to final excavation depth – Dewater (in needed)
Figure 7.1.2: DeepEX Model: Cantilever Excavation - Stage 1
C. Define analysis options (Analysis methods, design codes etc.)
7.2 Create an Anchored Wall Model Manually
Here we will present how to create an anchored wall model manually.
A. Stage 0 – Define basic project properties:
A1. Set general ground surface elevation and modify surface points
A2. Define soil properties and stratigraphy
A3. Define wall properties (wall position, structural section and depth)
A4. Draw external loads
A5. Define water table
Figure 7.2.1: DeepEX Model: Anchored Wall Excavation - Stage 0
B. Add Stage 1 – Excavate below the first support installation elevation – Dewater (if needed)
Figure 7.2.2: DeepEX Model: Anchored Wall Excavation - Stage 1
C. Add Stage 2 – Install first support row
Figure 7.2.3: DeepEX Model: Anchored Wall Excavation - Stage 2
D. Add Stage 3 – Excavate below the next support elevation – Dewater (if needed)
Figure 7.2.4: DeepEX Model: Anchored Wall Excavation - Stage 3
E. Repeat the previous stages to install supports and perform excavation and dewatering operations until all support levels are installed and the final excavation level is reached.
F. Define analysis options (Analysis methods, design codes etc.)
7.3 Create a Braced Excavation Model (Struts) Manually
Here we will present how to create a model of an excavation braced with struts manually.
A. Stage 0 – Define basic project properties:
A1. Set general ground surface elevation and modify surface points
A2. Define soil properties and stratigraphy
A3. Define wall properties (wall position, structural section and depth)
A4. Draw external loads
A5. Define water table
Figure 7.3.1: DeepEX Model: Excavation Braced with Struts - Stage 0
B. Add Stage 1 – Excavate below the first support installation elevation – Dewater (if needed)
Figure 7.3.2: DeepEX Model: Excavation Braced with Struts - Stage 1
C. Add Stage 2 – Install first support row
Figure 7.3.3: DeepEX Model: Excavation Braced with Struts - Stage 2
D. Add Stage 3 – Excavate below the next support elevation – Dewater (if needed)
Figure 7.3.4: DeepEX Model: Excavation Braced with Struts - Stage 3
E. Repeat the previous stages to install supports and perform excavation and dewatering operations until all support levels are installed and the final excavation level is reached.
F. Define analysis options (Analysis methods, design codes etc.)
7.4 Create a Braced Excavation Model (Rakers and Heelblock) Manually
Here we will present how to create a model of an excavation braced with rakers manually.
A. Stage 0 – Define basic project properties:
A1. Set general ground surface elevation and modify surface points
A2. Define soil properties and stratigraphy
A3. Define wall properties (wall position, structural section and depth)
A4. Draw external loads
A5. Define water table
Figure 7.4.1: DeepEX Model: Excavation Braced with Rakers - Stage 0
B. Add Stage 1 – Excavate below the first support installation elevation – Dewater (if needed)
Figure 7.4.2: DeepEX Model: Excavation Braced with Rakers - Stage 1
C. Add Stage 2 – Create slope on the excavation side
Figure 7.4.3: DeepEX Model: Excavation Braced with Rakers - Stage 2
D. Add Stage 3 – Install support and heelblock
Figure 7.4.4: DeepEX Model: Excavation Braced with Rakers - Stage 3
E. Add Stage 4 – Excavate to the final excavation elevation – Dewater (if needed)
Figure 7.4.5: DeepEX Model: Excavation Braced with Rakers - Stage 4
More raker levels can be installed in additional stages, including the stages with the sloped excavations. The new rakers can be connected to the same or to different heelblocks.
F. Define analysis options (Analysis methods, design codes etc.)
7.5 Create a Top Down Excavation Model (Concrete Slabs) Manually
Here we will present how to create a top-down excavation model with reinforced concrete slabs manually.
A. Stage 0 – Define basic project properties:
A1. Set general ground surface elevation and modify surface points
A2. Define soil properties and stratigraphy
A3. Define wall properties (wall position, structural section and depth)
A4. Draw external loads
A5. Define water table
Figure 7.5.1: DeepEX Model: Top-Down Excavation - Stage 0
B. Add Stage 1 – Excavate below the first support installation elevation – Dewater (if needed)
Figure 7.5.2: DeepEX Model: Top-Down Excavation - Stage 1
C. Add Stage 2 – Install first support row
Figure 7.5.3: DeepEX Model: Top-Down Excavation - Stage 2
D. Add Stage 3 – Excavate below the next support elevation – Dewater (if needed)
Figure 7.5.4: DeepEX Model: Top-Down Excavation - Stage 3
E. Repeat the previous stages to install supports and perform excavation and dewatering operations until all support levels are installed and the final excavation level is reached.
F. Define analysis options (Analysis methods, design codes etc.)
7.6 Create a Dead-Man Wall Model with the DeepEX Model Wizard
Here we will present now to create a Dead-man wall model with the DeepEX model wizard.
A. Open Model Wizard and select a Unit System
Figure 7.6.1: DeepEX Model: Dead man wall with model wizard - Step 1
B. Select Analysis Method and Soil/Water pressure options
Figure 7.6.2: DeepEX Model: Dead man wall with model wizard- Step 2
C. Select Project Type (Dead-man) and define project dimensions and support properties
Figure 7.6.3: DeepEX Model: Dead man wall with model wizard- Step 3
D. Define Soil Properties and Stratigraphy
Figure 7.6.4: DeepEX Model: Dead man wall with model wizard- Step 4
E. Define Wall section properties – Assign a wall section to both walls
Figure 7.6.5: DeepEX Model: Dead man wall with model wizard- Step 5
F. Define Surface Surcharge
Additional surcharges can be added on the model area graphically.
Figure 7.6.6: DeepEX Model: Dead man wall with model wizard- Step 6
G. Define Structural and Geotechnical Codes
Figure 7.6.7: DeepEX Model: Dead man wall with model wizard- Step 7
DeepEX wizard generates the model including all construction stages.
Figure 7.6.8: Dead-man wall model (all stages)
7.7 Create a Bin Type Wall Model with the DeepEX Model Wizard
Here we will present now to create a Bin type wall model with the DeepEX model wizard.
A. Open Model Wizard and select a Unit System
Figure 7.7.1: DeepEX Model: Bin type wall with model wizard - Step 1
B. Select Analysis Method and Soil/Water pressure options
Figure 7.7.2: DeepEX Model: Bin type wall with model wizard- Step 2
C. Select Project Type (Bin type wall) and define project dimensions and support properties
Figure 7.7.3: DeepEX Model: Bin type wall with model wizard- Step 3
D. Define Soil Properties and Stratigraphy
Figure 7.7.4: DeepEX Model: Bin type wall with model wizard- Step 4
E. Define Wall section properties – Assign a wall section to both walls
Figure 7.7.5: DeepEX Model: Bin type wall with model wizard- Step 5
F. Define depth from the surface of each tierod level
Figure 7.7.6: DeepEX Model: Bin type wall with model wizard- Step 6
G. Define Surface Surcharge
In this case we will choose the option “Do not use a wall surcharge”. We will add a load on the model area graphically after the model is generated.
Figure 7.7.7: DeepEX Model: Bin type wall with model wizard- Step 7
H. Define Structural and Geotechnical Codes
Figure 7.7.8: DeepEX Model: Bin type wall with model wizard- Step 8
DeepEX wizard generates the model including all construction stages.
Figure 7.7.9: Bin type wall model (all stages)
Finally, we will draw a strip surcharge on the ground surface between the two walls. The load will be active from the installation stage and after.
Figure 7.7.10: Bin type wall model – Strip surcharge and load properties
7.8 Create a Circular Shaft Model with the DeepEX Model Wizard
Here we will present now to create a Circular shaft model with the DeepEX model wizard.
A. Open Model Wizard and select a Unit System
Figure 7.8.1: DeepEX Model: Circular shaft with model wizard - Step 1
B. Select Analysis Method and Soil/Water pressure options
Figure 7.8.2: DeepEX Model: Circular shaft with model wizard- Step 2
C. Select Project Type (Circular shaft) and define project dimensions and support properties
Figure 7.8.3: DeepEX Model: Circular shaft with model wizard- Step 3
D. Define Soil Properties and Stratigraphy
Figure 7.8.4: DeepEX Model: Circular shaft with model wizard- Step 4
E. Define Wall section properties – Assign a wall section to both walls
Figure 7.8.5: DeepEX Model: Circular shaft with model wizard- Step 5
F. Define support types and support dimensions
Figure 7.8.6: DeepEX Model: Circular shaft with model wizard- Step 6
G. Define depth from the surface of each tierod level
Figure 7.8.7: DeepEX Model: Circular shaft with model wizard- Step 7
H. Define Surface Surcharge
Figure 7.8.8: DeepEX Model: Circular shaft with model wizard- Step 8
I. Define Structural and Geotechnical Codes
Figure 7.8.9: DeepEX Model: Circular shaft with model wizard- Step 9
DeepEX wizard generates the model including all construction stages.
Figure 7.8.10: Circular shaft model (all stages)
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