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Secant/Tangent Pile Walls in DeepEX - Review Full Software Capabilities

Secant and tangent pile walls can be designed with DeepEX software in the most efficient way. In DeepEX, we can design and optimize such walls types in 3 simple steps:

1. Define our secant or tangent piles type, structural sections, spacing and number of unreinforced piles.

2. Create our model in minutes in the software graphical interface, or using the powerfull model wizard (all construction stages).

3. Run the analysis, review the results in each stage and optimize the model (manually or with the use of the DeepEX autimatic optimization tools).

The following paragraphs present how we can follow these steps within the software and achieve an efficient model optimization in minutes.

Secant Pile Wall Section with Double Unreinforced Piles

Figure: A Secant Pile Wall Section with Double Unreinforced Piles in  DeepEX Software

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Step 1: Define the Secant or Tangent Piles Type and Sections

Selecting the Secant or Tangent Piles Type

At any time, we can access and edit the structural section of our walls on the model area, or through the related tab of the model wizard. There, we can select our piles type (steel beams -H beams, pipes, square hollow and more, reinforced concrete, combined sections or soil mix). We simply need to press on any of the available pile types buttons:

Secant and Tangent Piles Section Types in DeepEX.png

Defining the Piles Structural Section

Based on the selected piles type, several options are available for the piles structural sections and reinforcement:

1. For Steel Beams (H Beams, Piles, Rectangular sections, Channel sections and more), the user can select any of the available steel sections from our extensive implemented databases, or define the steel section properties manually.

2. For Reinforced Concrete piles, the user can define the pile diameter, as well as the longitudinal and shear reinforcement of the examined section.

 

Edit Soldier Piles Sections in DeepEX.png

Defining the Secant/Tangent Piles Spacing and Layout

In the General tab of the wall sections dialog, we can define the pile diameter and spacing. For secant piles, the spacing equals to the center-to-center distance between two reinforced piles. There are additional options within the software to use multiple unreinforced piles, as well as, use a different diameter for the unreinforced piles.

For tangent piles, the pile spacing equals to the center-to-center distance between two consecutive piles (all tangent piles are considered as reinforced piles within DeepEX). The piles can be alinged or be placed with an offset along the wall axis.

Secant Piles Layout in DeepEX.png

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Step 2: Create the Model (All Construction Stages)

In DeepEX we can graphically add construction stages and draw the model on the model area stage by stage, or use the model wizard to create a model with all construction stages in seconds. Either way, we need to create a detailed staging, starting from at rest conditions in an initial stage, and then step by step generate new stages with each excabation and support installation level. DeepEX will analyze and present results for each stage, allowing us to review the full model construction process, identify the most critical stage and optimize our structural sections and support locations in the most efficient way.

Braced Secant Pile Walls Staging.png

Figure: Excavation Braced with Struts - Construction Stages in  DeepEX Software

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Step 3: Review the Results and Optimize the Model

DeepEX can analyze any deep excavation model with several implemented analysis methods (classical Limit Equilibrium, Non-Linear Analysis with elastoplastic springs and Finite Element Analysis). After the analysis is completed, DeepEX software presents all calculation results in tables and in graphs on the model area for each construction stage. We can review all calculated stresses, moment and shear diagrams along with the structural capacities, the support and wall check structural ratios, the wall embedment safety factors and more. This way, we can have a great overview of all structural items designed by the program for each stage, and take important decisions for the efficient model optimization.

We can optimize any model fast either manually by accessing all wall and supports on the model area and edit the structural sections and support locations fast through user friendly dialogs, or use the software automatic optimization tools that can fast check and give us a variety of section solutions for all structural items on the examined model.

Braced Secant Pile Wall Results 2.png

Training Video - A Secant Pile Wall with Ground Anchors Designed with DeepEX:

Presentations_DeepEX_Braced Excavation Projects.png

 

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