Foundation Support With Lateral Quills for Higher Load Capacity
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Solution Overview
Problem
Current foundation elements have limited capacity to bear weight, requiring numerous, deep, or large-diameter elements due to unfavorable soil conditions, increasing costs, complexity, and risk of structural failure.
Innovation Solution
Deploy extensible components, such as quills and fins, into the surrounding substrate to increase load-bearing capacity by expanding the breadth of the foundation element laterally, enhancing frictional soil interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If more foundation elements are used to mobilize soil bearing capacity, then the load-bearing capacity is improved, but the number of elements increases leading to higher cost and complexity
Solution Approach 1:
The patent extends the foundation element interaction with soil from a one-dimensional vertical shaft to a three-dimensional structure by deploying extensible components (quills and fins) laterally into the surrounding substrate. This dimensional expansion increases the surface area for frictional interaction without requiring additional separate foundation elements, thereby improving load-bearing capacity while reducing the number of elements needed.
Solution Approach 2:
The foundation element is divided into functional segments: the vertical shaft portion and multiple extensible quill components that can be independently deployed at different depths and orientations. This segmentation allows the single foundation element to mobilize soil capacity at multiple locations and depths, replacing the need for multiple separate foundation elements.
2Strength
If foundation elements are drilled or driven deeper to reach adequate material, then the load-bearing capacity is improved, but the depth increases leading to higher risk and complexity
Solution Approach 1:
Instead of increasing vertical depth to reach competent bearing material, the patent deploys extensible quills and fins laterally into the surrounding substrate at shallower depths. This lateral dimensional expansion allows the foundation element to access and mobilize soil bearing capacity in the horizontal direction, achieving the required load-bearing capacity without increasing foundation depth.
Solution Approach 2:
The extensible components are pre-integrated within the foundation element during installation, positioned to be deployed into the surrounding substrate once the foundation element is in place. This preliminary integration ensures that the load-bearing enhancement is achieved without requiring additional deep excavation or drilling operations.
3Strength
If larger diameter shafts or piles are used to develop required capacities, then the load-bearing capacity is improved, but the size increases leading to larger equipment and environmental impact
Solution Approach 1:
The patent increases the effective load-bearing surface area by deploying extensible quills and fins laterally into the surrounding substrate, transforming the foundation's load-transfer mechanism from relying solely on vertical shaft surface area to utilizing three-dimensional lateral interaction. This allows smaller diameter shafts to achieve the same or greater load-bearing capacity by exploiting horizontal soil interaction.
Solution Approach 2:
The foundation system combines the structural shaft (made of concrete, steel, or other materials) with extensible components (quills and fins) that create a composite interaction system with the surrounding soil. This composite approach enhances the effective surface area and frictional interaction without increasing the volume of the primary foundation structure.
4Strength
If more rebar cages and concrete are used to increase foundation capacity, then the load-bearing capacity is improved, but the material consumption increases leading to higher cost and environmental impact
Solution Approach 1:
The extensible quill and fin components utilize the surrounding soil substrate itself as the load-bearing medium, allowing the soil to serve the function of supporting structural loads through frictional interaction. This self-service approach eliminates the need for additional concrete and rebar that would otherwise be required to increase foundation capacity, as the soil resource is directly engaged to bear the loads.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces the number, depth, and size of foundation elements needed, improving construction efficiency, safety, and reducing environmental impact while verifying capacity before final loading.
Implementation Method 1
increase interaction with the substrate creating a larger area on which to distribute a load. The extensible components are integrated within the foundation element and the like and deployed into the surrounding substrate... improve friction, and/or increase load-bearing capacity
Data Source
AI summary
Lateral extensions enhance the capacity and stability of a foundation element by penetrating the surrounding substrate creating a stronger underpinning. The load bearing capacity of a foundation element is increased by deploying extensible components into the surrounding substrate/soil. The breadth of a foundation element is expanded by extending components into the surrounding soil via an expansion mechanism integrated within a foundation element or piling and deployed into the surrounding substrate once the foundation element is positioned in the ground.