Helical pile and bracket module comprising the same
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Solution Overview
Problem
Existing helical piles for solar equipment are inadequate for sites with softer soils and harsh coastal environments, lacking sufficient uplift and compression bearing capacities, and requiring improved anti-corrosion properties.
Innovation Solution
A helical pile design with a specific element-size ratio and multi-functional coating, featuring a column body, helical blades, and a loading member with a flange, providing enhanced uplift and compression bearing capacities, and incorporating a multi-functional coating for improved corrosion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional helical piles are used in softer soils, then installation is simpler, but uplift and compression bearing capacities are insufficient
Solution Approach 1:
The helical pile combines steel column body with concrete infilling to create a composite structure. The steel provides tensile strength for uplift resistance while the concrete provides compressive strength, together achieving both high uplift and compression bearing capacities needed for softer soils while maintaining installation simplicity
Solution Approach 2:
The patent modifies key parameters including the helical blade diameter-to-column diameter ratio (3:1 to 7:1), concrete infilling ratio (30% to 70%), and blade thickness to optimize the balance between ease of installation and bearing capacities. These parameter adjustments enable the pile to achieve sufficient strength in softer soils without compromising installation simplicity
2Strength
If conventional steel piles are used in coastal environments, then structural strength is adequate, but corrosion resistance is insufficient
Solution Approach 1:
The concrete infilling acts as a protective barrier against corrosion for the steel column body in coastal environments. The concrete layer isolates the steel from corrosive marine atmosphere, saltwater, and humidity while the steel core maintains structural strength, together achieving both structural integrity and corrosion resistance
Solution Approach 2:
The concrete infilling serves as an intermediary protective layer between the steel helical pile and the corrosive coastal environment. This intermediate layer prevents direct contact between steel and corrosive elements while maintaining the structural function of the pile
3Strength
If cement foundations are used to provide adequate support, then bearing capacity is sufficient, but construction cost and environmental impact increase
Solution Approach 1:
The patent extracts the essential load-bearing function from traditional cement foundations and concentrates it into the helical pile structure itself. The pile's optimized geometry and composite construction provide sufficient bearing capacity without requiring separate foundation elements, reducing overall material quantity and construction cost
Solution Approach 2:
By changing the parameters of the helical pile (blade dimensions, column diameter, concrete infilling ratio), the design achieves adequate bearing capacity with minimized material usage. The optimized parameters ensure the pile can support solar panel structures without requiring excessive concrete or steel, reducing both material quantity and construction cost
Data Source
AI summary
Provided are a helical pile and a bracket module comprising the same. The helical pile includes a column body, at least a helical blade and a loading member. The column body has a fixing end, a loading end opposite to the fixing end, and a body section between the fixing end and the loading end. The helical blade is disposed on the column body between the fixing end and the loading end. The loading member is connected to the loading end of the column body and includes a flange. The ratio of the body diameter of the column body to the blade diameter of the helical blade ranges from 1:3 to 1:7. The helical pile features excellent compression bearing capacity and uplift bearing capacity due to its specific element-size ratio, and is applicable for installation in areas subject to harsh conditions or with peculiar geological features or soil conditions.