Rankine & Coulomb Earth Pressure Excel Calculator with Sliding, Overturning, Bearing, Groundwater, and Preliminary Wall-Sizing Checks.

A professional 24-worksheet Excel engineering calculator for preliminary cantilever concrete retaining wall sizing and external stability analysis.

Evaluate Rankine and Coulomb earth pressures, equivalent fluid pressure, sliding resistance, overturning stability, foundation bearing, eccentricity, groundwater, and surcharge effects in one interconnected workbook.

Includes 15 preliminary wall-sizing configurations, 17 sensitivity scenarios, dynamic engineering charts, calculation traceability, a PDF engineering SOP guide, and built-in quality-control checks.

Designed for civil, structural, and geotechnical engineering professionals. For preliminary engineering evaluation—not construction-ready design.

Cantilever Concrete Retaining Wall Sizing & Stability Matrix

A Practical Excel Engineering System for Earth Pressure Analysis, External Stability Verification, and Preliminary Retaining Wall Sizing

Retaining wall evaluation involves more than selecting a base width or calculating lateral earth pressure.

Changes in soil properties, wall geometry, groundwater levels, surcharge loads, and foundation conditions can significantly affect sliding resistance, overturning moments, bearing pressure, and the position of the foundation resultant.

The Cantilever Concrete Retaining Wall Sizing & Stability Matrix brings these interconnected engineering calculations together in a structured, formula-driven Excel workbook.

Developed for civil, structural, and geotechnical engineering workflows, this toolkit helps engineers evaluate conventional cantilever retaining wall configurations, compare preliminary dimensions, investigate loading conditions, and document the assumptions behind external stability calculations.

Three Earth Pressure Calculation Methods

Select from three primary lateral earth pressure approaches:

Rankine Active Earth Pressure

Calculate active earth pressure coefficients and lateral thrust for supported level-backfill conditions using effective soil friction properties.

Coulomb Active Earth Pressure

Evaluate Coulomb active earth pressure for supported vertical pressure-plane configurations, including applicable wall-soil interface friction and backfill inclination conditions.

Equivalent Fluid Pressure (EFP)

Enter a project-specific equivalent fluid pressure value for a triangular pressure distribution, with separate controls for documented surcharge and groundwater inclusion.

The selected method feeds the external stability calculations without adding multiple primary soil-pressure methods for the same retained zone.

External Stability Analysis

Evaluate the principal external stability conditions through interconnected calculation worksheets:

• Sliding resistance and factor of safety.

• Stabilizing and overturning moments.

• Overturning factor of safety where applicable.

• Foundation resultant location.

• Base eccentricity and contact classification.

• Maximum and minimum bearing pressures under valid full-contact conditions.

• Partial-contact compression-only bearing distribution.

• Bearing utilization against compatible user-entered allowable values.

Project-specific acceptance criteria remain editable. The workbook does not assume one universal safety factor applies to every project.

Groundwater, Surcharge, and Soil Conditions

Assess the influence of selected environmental and loading conditions, including:

• Uniform extensive surcharge loads.

• Rear and front hydrostatic water pressures.

• Effective soil weight assumptions.

• User-entered foundation uplift pressure.

• Soil and concrete self-weight.

• Base-interface friction.

• Optional documented passive resistance.

• Changes in retained height and foundation dimensions.

Built-in applicability warnings identify conditions requiring additional engineering verification.

Preliminary Wall-Sizing Matrix

Compare 15 formula-driven retaining wall configurations using different preliminary toe and heel dimensions.

Review how geometric adjustments influence concrete quantities, vertical weights, sliding resistance, overturning moments, eccentricity, and bearing pressure.

This helps support preliminary configuration studies without presenting any candidate as a completed structural design.

Engineering Sensitivity Analysis

Explore 17 formula-driven scenarios examining the influence of changing engineering inputs.

Investigate different soil properties, groundwater conditions, surcharge loading, base friction, wall geometry, allowable bearing values, and earth pressure assumptions.

Compare results against the baseline configuration while retaining the original project inputs.

Dashboard, Diagrams, and Calculation Trace

The workbook includes an engineering dashboard with linked results and formula-driven visualizations.

Review:

• Wall geometry and schematic cross-section.

• Lateral earth pressure distribution.

• Foundation bearing distribution.

• Sliding and overturning stability summaries.

• Force and moment calculations.

• Calculation references and engineering assumptions.

• Data validation and quality-control warnings.

A dedicated calculation trace and force-and-moment ledger help make the preliminary analysis easier to review.

Built-In Engineering Quality Control

The toolkit includes a validation worksheet with 32 live QA checks addressing input consistency, unsupported conditions, calculation applicability, bearing contact, and other engineering concerns.

The workbook distinguishes calculated external stability results from unresolved structural and geotechnical design requirements.

Complete Engineering Documentation

Your download also includes a professional PDF Standard Operating Procedure and Engineering Guide covering the calculation workflow, assumptions, worked examples, preliminary sizing procedures, field-review considerations, and engineering quality-control checklists.

A separate README provides setup instructions, workbook navigation, compatibility information, supported calculation methods, and important limitations.

Designed for Professional Engineering Workflows

Use this toolkit to:

• Organize preliminary retaining wall evaluations.

• Compare alternative cantilever wall dimensions.

• Review documented earth pressure assumptions.

• Examine external stability sensitivity.

• Prepare internal preliminary calculation summaries.

• Improve calculation transparency and repeatability.

• Identify items requiring further structural or geotechnical investigation.

Important Engineering Scope

This product is a preliminary retaining wall external stability and sizing tool.

It does not perform complete reinforced concrete reinforcement design, settlement analysis, global stability analysis, seismic design, or comprehensive groundwater seepage analysis.

Its use does not establish construction readiness, regulatory compliance, or professional design approval. All project-specific inputs, model assumptions, criteria, and results must be independently reviewed by appropriately qualified engineering professionals.

Publisher: Sarchawa
Edition: First Edition, 2026
Format: Excel Workbook + PDF Engineering Guide + README
Units: SI (m, kN, kPa, degrees)

Key Product Features

• 24 interconnected Excel engineering worksheets

• Rankine active earth pressure calculations

• Coulomb active earth pressure calculations for supported configurations

• User-defined equivalent fluid pressure method

• Sliding resistance and factor-of-safety calculations

• Overturning stability and moment equilibrium

• Foundation bearing pressure and eccentricity checks

• Groundwater and hydrostatic pressure evaluation

• Uniform surcharge load calculations

• Concrete and soil self-weight calculations

• Force and moment calculation ledger

• 15 preliminary wall-sizing candidates

• 17 engineering sensitivity scenarios

• Dynamic wall geometry and pressure charts

• 32 live engineering QA checks

• Transparent calculation trace and references

• Editable project-specific acceptance criteria

• PDF Standard Operating Procedure and Engineering Guide

• No macros or VBA required

What's Included

1. Excel Engineering Workbook (.xlsx)

Cantilever-Concrete-Retaining-Wall-Sizing-and-Stability-Matrix.xlsx

A 24-sheet, formula-driven retaining wall engineering calculator featuring earth pressure methods, external stability analysis, wall-sizing comparisons, sensitivity scenarios, diagrams, and quality-control checks.

2. Engineering SOP & Guide (.pdf)

Cantilever-Concrete-Retaining-Wall-SOP-and-Engineering-Guide.pdf

A 15-page professional engineering guide containing calculation procedures, worked examples, engineering assumptions, review workflows, and quality-control checklists.

3. User Guide & README (.md)

Cantilever-Concrete-Retaining-Wall-README.md

Workbook instructions, worksheet descriptions, calculation scope, compatibility information, engineering limitations, and buyer license.

4. Complete ZIP Download (.zip)

Cantilever-Concrete-Retaining-Wall-Complete.zip

All three product files conveniently packaged into one downloadable archive.

Who Is This Product For?

• Civil Engineers

• Structural Engineers

• Geotechnical Engineers

• Retaining Wall Designers

• Foundation and Site Design Engineers

• Land Development Consultants

• Infrastructure Engineering Professionals

• Engineering Design Offices

• Construction Engineering Consultants

• Technical Reviewers

• Graduate Engineers Working Under Professional Supervision

Suitable for preliminary engineering studies, internal technical evaluations, calculation reviews, and early-stage cantilever retaining wall configuration comparisons.

Software Requirements

Required Software: Microsoft Excel (modern desktop version recommended)

Workbook Format: .xlsx

Engineering Unit System: SI — meters, kilonewtons, kilopascals, and degrees

Additional Files: PDF guide and Markdown README

Macros: Not required

Internet Connection: Not required for ordinary workbook calculations

The workbook uses Excel formulas, data validation, and native charts. Compatibility with other spreadsheet applications is not guaranteed. Enable automatic recalculation and independently review critical engineering results before professional use.

Important Engineering Disclaimer

IMPORTANT ENGINEERING NOTICE

This product is intended for preliminary engineering analysis, technical education, and internal professional calculation support.

It is not a substitute for complete structural design, geotechnical investigation, settlement evaluation, global stability assessment, seismic analysis, drainage design, or project-specific engineering judgment.

Calculated external stability results do not establish that a retaining wall is safe or approved for construction.

Users are responsible for verifying input data, soil properties, groundwater conditions, design assumptions, applicable standards, acceptance criteria, and calculation results.

All fictional demonstration examples are provided for learning and model evaluation purposes only.

Final engineering design, independent review, documentation, and approvals remain the responsibility of appropriately qualified professionals.

Publisher and Copyright

Publisher: Sarchawa
Website: https://sarchawa.com
Owner & Writer: Mohammed A. Omer
Edition: First Edition, 2026

Copyright © 2026 Mohammed A. Omer. Published by Sarchawa (sarchawa.com). All rights reserved.

Sarchawa is the publishing website and digital resource platform operated by Mohammed A. Omer.