# Deformation analysis of anchored embedded wall¶

## Introduction¶

The following tutorial describes the workflow for the deformation analysis of an anchored embedded wall. Guided by the task, all necessary input will be defined. After following all steps, the user will be able to model and calculate embedded walls and excavations. The ground-water flow by using module HYDRA is NOT subject of this tutorial, this will be shown in next tutorial.

Note

To understand this tutorial, a basic knowledge of the SSD is required. We recommend to see our online introduction videos.

## Objectives and workflow steps¶

1. Start new project

2. Define materials

3. System generation in SOFiPLUS(-X)

1. Soil layers

2. Anchoring

5. Construction Stages Geotechnics - CSG

6. Postprocessing (Results)

## Project description¶

The following construction steps should be modelled in the numerical analysis:

• initial phase (K0=0.50)

• installation of diaphragm wall

• excavation step 1 to level -2.0 m

• excavation step 2 to level -4.0 m

• installation of anchor and prestressing

• excavation step 3 to level -6.0 m

The surcharge of 10 kPa is a permanent load, the surcharge of 50 kPa is a variable load. Bedrock was assumed at a depth of 20 m below ground surface.

Result to be provided:

• deformation of wall

• design bending moment for the wall

## Materials and cross-sections¶

In the video below, it will be shown how to:

• create materials and cross-sections.

Title: Anchored Embedded Wall: Material and cross section generation 1080p Full HD English https://youtu.be/P_XfLPormD0

For more details why the SVAL input was used in the video “Anchored Embedded Wall: Material and cross section generation” see How to define the anchor cross-section properties?

Define the materials according the following table.

Number

Material

E [kN/m2]

μ [-]

γ [kN/m3]

γA [kN/m3]

Strength

1

Concrete
C 25/30

3.1476 × 107

0.20

25.0

fck=25.0 MPa
fcm=33.0 MPa

2

Reinforcement
B 500 B

2.0 × 108

0.30

78.5

fck=25.0 MPa
fcm=33.0 MPa

3

Soil
(hardening-soil)

30000

0.15

19.0

10.0

φ=27.50°
c=10 kPa

51

grouting body
(for anchor)

3.0 × 107

0.20

25

15

Define following cross-sections:

Number

Cross-Section

1

Rectangular cross-section
B/H = 1000/800 mm

51

Anchor (will be defined via cross-section properties AQUA SVAL input)
A = 45 cm2, Iy = 1000 cm4