This tool evaluates the stability of underground excavations that use sheet-piled or secant-piled walls. It utilizes the Net Available Passive Resistance method (Burland) and complies with Eurocode 7 regulations. The evaluation takes into account drained conditions and assumes the groundwater level at the surface.
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Cofferdam design by Empirical Method and Eurocode 7 is a specialized tool that evaluates the stability of underground excavations that incorporate sheet-piled or secant-piled walls. By leveraging the Net Available Passive Resistance method (Burland), this tool ensures designs comply with Eurocode 7 regulations. It is designed to assess excavations under drained conditions, assuming the groundwater level remains at the surface.
This tool is for:
- Geotechnical Engineers – looking to enhance safety and stability assessments of excavation projects.
- Structural Engineers – needing to confirm design compliance for temporary structures within European regulatory frameworks.
- Civil Engineering Consultants – evaluating excavation solutions in complex urban or sensitive ground conditions.
With this tool, users benefit from a structured, parameterized approach that ensures consistency, regulatory adherence, and the reliability of key stability factors in excavation design. It simplifies complex calculations, allowing for accurate documentation that supports project proposals, regulatory submissions, and technical reports.
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FAQs
What are the primary factors affecting the stability of a cofferdam?
Factors such as soil type, groundwater conditions, wall type, depth of excavation, and passive resistance are critical in determining the stability of cofferdams.
Why is groundwater level significant in evaluating cofferdam stability?
Groundwater levels impact pore water pressure and seepage forces, which influence stability.
What are the typical use cases for sheet-piled vs. secant-piled walls?
Sheet-piled walls are generally preferred for temporary, cost-effective solutions, while secant-piled walls offer higher rigidity and are more suitable for complex or permanent underground constructions.
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How to prepare an engineering report
Engineering reports require a balance of clarity, precision, and professionalism. Here are some best practices for preparing a report we use at CalcTree:
- Clear and visual: Use heading types to establish a logical structure, add diagrams for clarity.
- Integrate sources: Map data from your calculation tools such as spreadsheet or Python to your report.
- Units: Assign units to physical quantities.
- Compliance: State and hyperlink the relevant codes of practices.
- Peer review: Share a link to your page with team members for reviews and feedback.
For more on verification, see CalcTree’s internal methods.
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