Circular Excavations - Design with DeepEX

Circular Shafts in DeepEX

Circular shaft excavations can be designed with DeepEX software in the most efficient way. In DeepEX, we can design and optimize circular shafts in 3 simple steps:

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

2. Define the structural sections of the wall, the cap beams and the supporting beams.

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.

Circular Shaft model in DeepEX.png

Figure: A Circular shaft simulated in  DeepEX Software

Step 1: 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.

Circular shaft Staging.png

Figure: Soil Mix Circular Shart - Construction Stages in  DeepEX Software

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Step 2: Define the Wall Type and the Support Section

Defining the Wall 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 define the wall section type and define the wall section properties (size, reinforcement, materials).

Soil Mix Secant Piles Section Properties.png

Defining the Ring Beam Support Type and Section

The DeepEX waler supports types and sections can be used as ring beams at any circular shaft elevation, providing lateral support. In DeepEX we can define the waler supports either as steel beams or as reinforced concrete beams.

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.

Circular Shaft Waler Supports.png

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.

Soil Mix Circular Shaft Results.png

Secant Piles - Circular Shaft Design Example
 

Circular Shaft Secant Piles Model in DeepEX.png

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      Deep Excavation LLC
    240 W 35th Street, Suite 1004
    New York, NY, 10001
    U.S.A