Removable Erosion Control System for Shoreline Preservation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shoreline preservation methods, such as permanent bulkheads, are detrimental to the ecosystem and costly, and can compromise the structural integrity of pilings or pylons, while non-permanent solutions are lacking for effectively managing shoreline erosion.
Innovation Solution
A removable erosion-control and fencing (REAF) system using post clamp pairs and cross-members that can be easily installed on existing posts without damaging them, dissipating wave energy and allowing sediment to accrete on the backside, maintaining shoreline integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanent bulkhead is constructed to prevent shoreline erosion, then shoreline preservation is improved, but the structural integrity of pilings is compromised and the ecosystem is harmed
Solution Approach 1:
The bulkhead system is divided into modular sections that can be independently installed between posts. Each section includes vertical members spaced apart to create gaps, allowing the system to be segmented rather than a continuous permanent structure. This segmentation enables installation without compromising piling integrity while maintaining shoreline protection functionality.
Solution Approach 2:
The bulkhead incorporates gaps between vertical members at specific locations to allow water and sediment passage. This local modification creates zones of permeability within the otherwise solid structure, enabling the bulkhead to protect shorelines while allowing ecological processes to continue, thus resolving the contradiction between protection and ecosystem health.
2Reliability
If a permanent bulkhead is constructed to prevent shoreline erosion, then shoreline preservation is improved, but construction cost and labor intensity increase
Solution Approach 1:
The bulkhead is constructed from modular sections that can be pre-fabricated and then assembled on-site. Each module includes standardized vertical members, horizontal supports, and gap configurations, allowing for efficient assembly without requiring complex permanent construction. This modularity significantly reduces construction time and labor intensity compared to traditional permanent bulkheads.
Solution Approach 2:
The bulkhead system is designed to be dynamic and adaptable rather than static and fixed. The modular sections can be easily installed, removed, and reconfigured as needed, providing flexibility in construction and maintenance. This dynamic approach reduces the overall construction cost and labor requirements compared to building permanent, fixed structures.
3Reliability
If a permanent bulkhead is constructed to prevent shoreline erosion, then shoreline preservation is improved, but the ecosystem health is deteriorated
Solution Approach 1:
The bulkhead incorporates gaps between vertical members at specific locations to allow water and sediment passage. This local modification creates zones of permeability within the otherwise solid structure, enabling the bulkhead to protect shorelines while allowing ecological processes to continue, thus resolving the contradiction between protection and ecosystem health.
Solution Approach 2:
The bulkhead structure incorporates intentional gaps and openings that create a porous configuration, allowing water and sediment to pass through while still providing shoreline protection. This porous design enables the structure to function as both a protective barrier and an ecological conduit, supporting marine life and sediment transport without compromising ecosystem health.
4Ease of manufacture
If non-permanent solutions are used for shoreline erosion management, then construction cost and ease of installation are improved, but erosion control effectiveness is reduced
Solution Approach 1:
The bulkhead system is divided into modular sections that can be independently installed between posts. Each post clamp pair sandwiches a post and is fixedly attached without permanent modification, allowing for easy installation and removal. The segmented design maintains effectiveness by providing continuous protection along the shoreline while enabling cost-effective, non-permanent construction.
Solution Approach 2:
The system uses post clamp pairs as intermediary components that attach to existing posts without permanent modification. These clamps serve as mediators between the existing structural elements and the bulkhead sections, enabling easy installation while maintaining the effectiveness of the erosion control system. The intermediaries allow for flexible, non-permanent construction that remains functionally effective.
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
The REAF system provides a quick, economical, and environmentally friendly solution for shoreline preservation by dissipating wave energy and preventing erosion without compromising piling integrity, while allowing for easy installation and adaptability to various shoreline configurations.
Implementation Method 1
Energy carried by the wave is dissipated by virtue of the wave coming into contact with the REAF system and the water having to navigate through the narrow openings between adjacent cross-members of a given wall section
Implementation Method 2
Once the water and sediment carried by a wave passes through the wall section of the REAF system, sand and sediment accretes or accumulates on the backside of the system
Data Source
AI summary
Disclosed is a removable erosion-control and fencing (“REAF”) system for shoreline preservation along a line defined by a plurality of posts. An exemplary REAF system comprises first and second post clamp pairs mounted to adjacent posts. Each post clamp pair “sandwiches” a post and is fixedly attached to the post by virtue of fasteners that lock one half of the post clamp pair to its other half. In this way, the post clamp pair “hugs” the post and is secured thereon without having to be permanently fixed to the post or damaging the structural rigidity of the post. Each post clamp pair includes a substantially vertical wall slot such that one or more cross-members may be received into the walls slots to form a wall section in a space defined between the adjacent posts.