Corkscrew Erosion Control Device for Shoreline Stabilization
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Solution Overview
Problem
Traditional rigid structures for beach erosion control, such as jetties and seawalls, are ineffective and have negative ecological impacts, while beach nourishment strategies are costly, disrupt ecosystems, and lead to rapid erosion of added sand, necessitating continuous re-sanding and harming marine life.
Innovation Solution
A device comprising a corkscrew with a flexible or non-flexible shaft and protrusions that can be installed in various ways to absorb wave energy, accumulate and stabilize sediment, and influence water flow, allowing for flexible barrier creation against storm surges and erosion, while being easy to transport and deploy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid structures (jetties, seawalls) are used for erosion control, then beach protection is provided, but ecological disruption and unintended scouring occur
Solution Approach 1:
The patent employs flexible biodegradable mesh wraps instead of rigid structures. The mesh wrap conforms to the shoreline contour and flexes with wave action, providing erosion protection while allowing water and organism passage, thereby avoiding ecological disruption and unintended scouring associated with rigid structures.
Solution Approach 2:
The shoreline protection system is divided into discrete segments wrapped around individual rocks or clusters. This segmentation allows the system to adapt to varying shoreline conditions, facilitates installation and removal, and maintains ecological connectivity while providing localized protection where needed.
2Quantity of substance
If beach nourishment (sand replacement) is used, then beach volume is restored, but costs increase and ecological harm occurs
Solution Approach 1:
The mesh wrap is installed before sand placement to create a protective framework that holds sand in position during placement and subsequent stabilization. This preliminary action prevents sand loss during the nourishment process and reduces the amount of sand needed to achieve stable beach restoration.
Solution Approach 2:
The biodegradable mesh wrap acts as an intermediary between the placed sand and the environment. It provides immediate structural support to the sand, allowing it to stabilize faster and reducing the need for continuous re-sanding, thereby lowering long-term costs and ecological impact.
3Strength
If traditional hard beach erosion controls are used, then scouring resistance is provided, but transport and installation difficulty increase
Solution Approach 1:
The flexible mesh wrap can be easily rolled, transported, and deployed by hand or simple equipment. It conforms to the shoreline and wraps around rocks to provide scouring resistance, combining the protective function of hard structures with the ease of installation of soft materials.
Solution Approach 2:
The mesh wrap parameters (density, size, biodegradation rate) can be adjusted based on specific site conditions. This allows optimization of scouring resistance while maintaining ease of installation, as the material remains flexible and adaptable regardless of parameter variations.
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 device effectively reduces beach and shoreline erosion, stabilizes added sediment, and minimizes ecological disruption by absorbing wave energy and directing water flow, providing a sustainable solution for erosion control and habitat protection.
Implementation Method 1
The corkscrew is configured to penetrate into an upper surface of a substrate upon a rotational force such that the shaft is partially or wholly under water.
Implementation Method 2
The shaft can be flexible or non-flexible. In one embodiment, the shaft is flexible.
Implementation Method 3
one or more protrusions extend from the shaft between the first end of the shaft and a second end of the shaft
Data Source
AI summary
A device comprising a corkscrew; and a protrusion comprising a sleeve and one or more protrusion cells. Methods of using the device are also disclosed.