Seawall with FRP Tie-Backs and Modular Panels
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Solution Overview
Problem
Conventional seawall construction faces issues such as anchor rod deterioration due to saltwater exposure, leading to misalignment and structural weaknesses, as well as costly and time-consuming installation processes.
Innovation Solution
The seawall design incorporates ultra-high performance concrete and fiber-reinforced polymers, with wall panels connected by specialized members, piling inserted deep into the ground for anchoring, pour plugs for concrete filling, sub-cap sections secured with chemical adhesion, tie-back rods for additional anchoring, and a top cap placed before concrete curing to enhance structural integrity and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional seawall construction uses traditional concrete and steel reinforcement, then initial construction cost is reduced, but the seawall cap fails due to steel corrosion and expansion over time
Solution Approach 1:
The patent replaces traditional steel reinforcement with fiber-reinforced polymers (FRP) to create a composite material seawall cap. This composite approach eliminates steel corrosion while maintaining structural strength, directly resolving the contradiction between initial cost and long-term durability. The FRP-reinforced concrete composite provides corrosion resistance without the expansion problems associated with traditional steel reinforcement.
Solution Approach 2:
The patent changes the material parameters of the reinforcement from metallic steel to polymer-based FRP, fundamentally altering the chemical and physical properties. This parameter change eliminates the corrosion mechanism entirely, as polymers do not rust like steel, thereby improving reliability while the modular construction approach helps control manufacturing costs.
2Reliability
If conventional seawall uses standard concrete and simple anchoring, then construction speed increases, but anchor rods deteriorate due to saltwater exposure causing misalignment
Solution Approach 1:
The patent uses fiber-reinforced polymer tie-back rods instead of traditional steel anchor rods. The FRP material provides superior corrosion resistance in saltwater environments while maintaining the necessary tensile strength for anchoring. This composite material substitution directly addresses the reliability issue without significantly impacting installation time due to the pre-fabricated nature of the FRP components.
Solution Approach 2:
The patent replaces the mechanical steel anchor rod system with a chemically bonded FRP tie-back system. The FRP rods are installed using epoxy adhesive bonding, substituting the traditional mechanical anchoring method. This substitution provides better corrosion resistance and can be installed more efficiently, resolving both the reliability and productivity contradictions.
3Productivity
If conventional seawall construction methods are used, then material costs are reduced, but installation process becomes more time-consuming and complex
Solution Approach 1:
The patent divides the seawall into modular pre-fabricated panels that can be manufactured off-site and assembled quickly on-location. Each panel is a self-contained module with integrated FRP reinforcement and connection details. This segmentation enables parallel manufacturing and site assembly, dramatically improving installation efficiency while the standardized modules help control material costs through economies of scale.
Solution Approach 2:
The patent employs pre-fabricated wall panels with all reinforcement and connection details prepared in advance at a manufacturing facility. This preliminary action allows quality control to be exercised in a controlled environment and enables rapid on-site assembly, improving productivity. The pre-fabrication process also optimizes material usage, helping to control costs despite the use of advanced materials like FRP.
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 configuration results in a cost-effective, durable, and structurally sound seawall that effectively protects landforms from marine conditions, reducing the risk of misalignment and corrosion-related failures while streamlining the installation process.
Implementation Method 1
the pour plugs are secured utilizing chemical adhesion
Implementation Method 2
the sub-cap sections are secured utilizing chemical adhesion
Implementation Method 3
tie back rods that are secured utilizing high strength adhesive
Implementation Method 4
ensuing installation of the sub-cap sections the wall panels and sub-cap section are filled with ultra high performance concrete
Implementation Method 5
a top cap member that is placed ensuing the pour of ultra high performance concrete but prior to the curing thereof
Data Source
AI summary
A seawall constructed to provide an improved installation method and further provide a more resistant structure wherein the elements of the present invention are combined with an ultra high performance concrete to create the seawall of the present invention. The seawall includes a plurality of wall panel members wherein the wall panel members have a plurality of cells formed therein wherein the cells are hollow and extend between the upper edge and lower edge of the wall panel member. Wall panel connection members are configured to mateably couple adjacent wall panel members. The present invention further includes piling members configured to be journaled into the cells of the wall panel members and penetrate the ground underneath the wall panel member. A sub-cap member is superposed the wall panel member and is integrally formed therewith subsequent pouring of concrete. A top cap member is operably coupled to the sub-cap member.