How can I model tangent pile walls in DeepEX software?

Tangent pile walls consist of contiguous piles that do not overlap. These walls are often reinforced and are capped to ensure uniform behavior. Tangent piles are frequently chosen as an alternative to secant or soldier piles due to their straightforward installation, which avoids the need for timber lagging (as required for soldier piles) or pile overlaps (as required for secant piles). However, tangent pile walls have limitations: they are not waterproof, each pile bears loads independently, and achieving verticality becomes challenging, especially with deeper piles.

DeepEX software simplifies the design of tangent pile walls, supporting various configurations such as reinforced concrete, piles with H-beams or channel sections, plain concrete piles, and more. Users can customize reinforcement details and pile sections through an intuitive interface, ensuring accurate modeling and efficient design.

 Figure 1: Available tangent pile sections in DeepEX software

Key Features for Tangent Pile Wall Design in DeepEX

1. Pile Diameter, Spacing, and Pressure Widths

For tangent pile walls, the spacing (center-to-center distance between consecutive piles) is typically equal to the pile diameter. In DeepEX, the wall section is treated as a continuous wall below the excavation, allowing active, passive, and water pressures to be applied using the pile spacing.

2. Pile Offset Options

While tangent piles are usually aligned along a single axis, DeepEX allows for offset placement of consecutive piles. Users can easily define the offset value through the software, enabling more flexible designs.

Figure 2: Pile offset options and piles top view in DeepEX software

3. Reinforced Concrete Tangent Piles

For concrete piles, users can access the “Concrete-Rebar” tab to define:

• Longitudinal reinforcement: Specify the number of bars and rebar size.

• Shear reinforcement: Adjust rebar size and vertical spacing.

This flexibility ensures precise reinforcement detailing tailored to project needs.

Figure 3: Concrete piles reinforcement options in DeepEX

4. Piles with Steel Sections

DeepEX supports tangent piles constructed with steel sections such as H-beams, pipes, channels, and square hollow sections.

• Select sections directly from the extensive section database included in the software.

• Edit pile section properties manually to simulate custom or non-standard sections.

Figure 4: Implemented section databases for H beams, channels and pipe sections

5. Evaluating Analysis Results

DeepEX provides powerful tools for analyzing tangent pile walls using methods such as limit equilibrium, non-linear analysis, or the finite element method (FEM). Key features include:

• Comprehensive calculations for wall stresses, support reactions, and pressure diagrams.

• Structural checks for moment and shear, based on selected design codes.

• Detailed results in both tabular and graphical formats, including critical wall moments and shear values per unit length or for individual piles.

The program also provides check ratios, such as: • Moment Check Ratio = Moment / Moment Capacity. • Shear Check Ratio = Shear / Shear Capacity. These outputs help ensure design accuracy and structural safety

Why Choose DeepEX for Tangent Pile Wall Design?

DeepEX offers an all-in-one solution for tangent pile wall modeling, covering everything from customizable pile configurations to advanced analysis methods. Whether you are designing reinforced concrete or steel section piles, DeepEX streamlines the process and delivers reliable results for efficient and safe construction projects.

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