Variable Soil Bearing Capacity in Foundation Design
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Solution Overview
Problem
Traditional foundation design techniques rely on fixed initial soil parameters, leading to overly conservative and often unsafe footing configurations due to the lack of dynamic updates in soil bearing capacity as the design evolves, resulting in excessive material costs and potential safety issues.
Innovation Solution
A computer-aided foundation design technique that dynamically updates soil parameters, specifically soil bearing capacity, based on changes in footing shape, size, and embedment depth, using variable bearing capacity interaction curves to ensure accurate and safe footing dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed initial soil parameters are used throughout the design process, then the design process is simple and quick, but the foundation design becomes overly conservative resulting in excessive material costs
Solution Approach 1:
The patent applies dynamics by transitioning from fixed soil parameters to variable soil parameters that change throughout the design process. The soil bearing capacity is no longer a static value but evolves dynamically as the footing configuration is refined, allowing the design to adapt and reduce conservatism while maintaining safety.
Solution Approach 2:
The patent implements parameter changes by allowing soil parameters, particularly soil bearing capacity, to vary based on the evolving footing configuration. As footing dimensions and embedment depth are refined, the soil bearing capacity is recalculated to reflect the actual conditions, enabling optimization of material usage while ensuring safety.
2Productivity
If fixed initial soil parameters are used throughout the design process, then the design process is simple and quick, but the foundation design may become unsafe when design evolves considerably
Solution Approach 1:
The patent applies dynamics by transitioning from fixed soil parameters to variable soil parameters that change throughout the design process. The soil bearing capacity is no longer a static value but evolves dynamically as the footing configuration is refined, allowing the design to adapt and reduce conservatism while maintaining safety.
Solution Approach 2:
The patent implements feedback by continuously updating soil parameters based on the current footing configuration. As the design evolves, the soil bearing capacity is recalculated using the updated footing dimensions and embedment depth, providing feedback that ensures the design remains safe and reliable throughout the iteration process.
3Reliability
If overly conservative soil bearing capacity values are used, then safety is ensured within a certain range, but footing size becomes excessively large incurring material costs
Solution Approach 1:
The patent implements parameter changes by allowing soil parameters, particularly soil bearing capacity, to vary based on the evolving footing configuration. As footing dimensions and embedment depth are refined, the soil bearing capacity is recalculated to reflect the actual conditions, enabling optimization of material usage while ensuring safety.
Data Source
AI summary
In one embodiment, a computer-aided foundation design technique employs variable soil parameters that are dynamically updated based on changes in footing shape, size, and/or embedment depth. The variable soil parameters may include a variable soil bearing capacity. The variable soil bearing capacity may be represented as a series of bearing capacity interaction curves that indicate an allowable bearing capacity for different footing dimensions and embedment depths. As part of the computer-aided foundation design technique, different combinations of footing dimensions and/or embedment depths may be iterated through, and for each iteration, base pressures may be tested against a soil bearing capacity that is specific to that combination of footing dimension and embedment depth.