Helical Pile Coupler Radial Offset Apertures
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Solution Overview
Problem
The existing methods for connecting pile segments in helical piles are costly and time-consuming, often requiring complicated fabricated transition couplings or welding at the job site, which can be inefficient and expensive.
Innovation Solution
A coupler system with radially offset aperture pairs is used to connect pile segments, allowing for secure fastening through aligned apertures, providing a robust and efficient alternative to traditional connection methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If complicated fabricated transition couplings or welding are used to join pile segments, then the connection strength and structural integrity are improved, but the installation time and cost increase significantly
Solution Approach 1:
The connection system is segmented into distinct components: a coupler with aperture pairs and separate fasteners. This allows the pile segments to be connected through a simplified insertion and fastening process rather than requiring complex fabricated couplings or welding operations, significantly reducing installation time while maintaining connection strength
Solution Approach 2:
The coupler is pre-formed with aperture pairs during manufacturing, eliminating the need for site-specific fabrication of transition couplings. This preliminary preparation of connection features allows for rapid assembly at the job site without compromising the structural integrity of the connection
2Strength
If complicated fabricated transition couplings or welding are used to join pile segments, then the connection strength and structural integrity are improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The coupler is designed as a universal component that can connect various pile segment configurations through standardized aperture pairs. This multi-functional design eliminates the need for different types of fabricated transition couplings for different connection scenarios, reducing both manufacturing complexity and cost while maintaining strong connections
Solution Approach 2:
The coupler uses repeated aperture pair patterns that can be standardized and mass-produced. Instead of creating unique complex fabricated couplings for each connection need, the same coupler design with replicated aperture features can serve multiple connection requirements, simplifying manufacturing
3Ease of operation
If radial offset aperture pairs are used in the coupler, then the alignment flexibility and ease of installation are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The aperture pairs are arranged with radial offsets rather than symmetric alignment, creating an asymmetric pattern that provides inherent alignment guidance during installation. This asymmetric configuration allows the pile segment to self-align with the coupler more easily, improving installation ease while the offset pattern can be precisely controlled during manufacturing
Data Source
AI summary
A helical pile coupler, assembly, and method of assembly. The assembly comprises a first pile segment having first end with a coupler attached thereto. The coupler has two or more coupler aperture pairs and the alignment of at least one of the coupler aperture pairs is radially offset from the alignment of at least one other coupler aperture pair. A second pile segment is receivable in the coupler and the second pile segment has two or more pile aperture pairs that can be aligned with at least two of the two or more coupler aperture pairs, including the at least one radially offset coupler aperture pair. Fasteners are extended through the aligned aperture pairs to secure the second pile segment to the coupler. The fasteners are configured to protrude minimally from the outer surface of the coupler.