Interlocking Joint Groove Formation in Pile Encapsulation Jackets
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Solution Overview
Problem
Existing pile encapsulation methods lack an efficient and precise method for forming interlocking joints in pile encapsulation jackets, which are crucial for securing the jackets around piles, especially in underwater and underground applications.
Innovation Solution
A method involving the use of a flexible spacer, such as silicone rubber, to create a groove on the pile jacket laminate by applying multiple layers of laminate material, allowing for the formation of an interlocking joint when the spacer is removed, enabling secure wrapping of the jacket around the pile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional methods are used to form interlocking joints in pile encapsulation jackets, then the process is simpler, but the precision and reliability of the joint formation is insufficient
Solution Approach 1:
A flexible spacer made of elastomeric material is introduced as an intermediary tool to form the groove. The spacer is placed on the first layer of laminate, and the second layer is formed over it. After curing, the spacer is removed to leave a precise groove. This intermediary approach enables precise groove formation without requiring complex cutting or molding equipment.
Solution Approach 2:
The groove is formed preliminarily during the laminate manufacturing process itself, before the jacket is installed on the pile. By placing the spacer on the first layer and forming the second layer over it, the groove is created in advance as part of the jacket fabrication, eliminating the need for subsequent groove cutting or modification operations.
2Reliability
If multiple layers of laminate are formed with a spacer, then the interlocking joint reliability is improved, but the manufacturing time and process complexity increase
Solution Approach 1:
The groove formation process is merged with the laminate layering process. Instead of forming the groove separately after the laminate is applied, the groove is created simultaneously during the laminate fabrication by placing the spacer on the first layer and forming the second layer over it. This integration eliminates separate operations and reduces overall manufacturing time.
Solution Approach 2:
The spacer serves multiple functions automatically: it defines the groove location, maintains the correct spacing between laminate layers during curing, and creates the interlocking geometry. After curing, the spacer is simply removed, leaving the groove ready for the interlocking joint. The system essentially forms itself through the spacer's presence during lamination.
3Ease of manufacture
If a flexible spacer is used to form the groove, then the manufacturing cost is reduced, but the process complexity increases
Solution Approach 1:
The flexible spacer is designed as a disposable, low-cost component made from simple elastomeric material. It is placed on the laminate, serves its purpose during the lamination and curing process, and is then removed and discarded. The low cost of the spacer itself and the simplicity of its removal justify the added process steps, especially compared to expensive alternative methods like precision machining or molding.
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
This method allows for a precise and cost-effective formation of interlocking joints, ensuring a secure and reliable connection of the pile jacket, enhancing the structural integrity and durability of the encapsulation, particularly in challenging environments like underwater conditions.
Implementation Method 1
The spacer may stay in place due to the sticky surface of the partially cured pile jacket laminate
Data Source
AI summary
Embodiments provide a method for forming a groove on a pile encapsulation jacket to form an interlocking joint on the pile encapsulation jacket. A spacer may be used to form the groove. First, a pile jacket laminate is formed on a mandrel surface. The pile jacket laminate may be partially cured to have a solid but sticky surface. The spacer may be placed on the pile jacket laminate. An additional layer of laminate may be formed on at least a portion of the pile jacket laminate and at least a portion of the spacer. The entire structure may be cured and the spacer may be removed. A groove is formed between the pile jacket laminate and the additional layer of laminate at a space previously occupied by the spacer. The groove has the same width as the portion of the spacer that was covered with the additional layer of laminate.