Subterranean Lignocellulosic Injection for Terrain Elevation
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Solution Overview
Problem
Current methods for protecting coastal areas from inundation and seismic events are costly and disruptive, with limited options for elevating terrain without disturbing existing infrastructure, and existing solutions using mineral sediments face challenges in transportation and processing costs.
Innovation Solution
The subterranean injection of lignocellulosic materials such as sawdust, wood chips, and algae, which are suspended in a slurry and injected below ground level to elevate terrain and improve seismic performance, reducing costs through lower transportation needs and simpler processing compared to mineral sediments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mineral sediments are used for terrain elevation, then inundation protection is achieved, but transportation and processing costs increase
Solution Approach 1:
The patent changes the material parameter from mineral sediments to lignocellulosic materials, which have different physical properties including lower density and higher porosity. This parameter change reduces transportation costs and simplifies processing while maintaining the terrain elevation function for inundation protection
Solution Approach 2:
The patent employs lignocellulosic materials such as wood chips, sawdust, and agricultural residues that are abundant, inexpensive, and require minimal processing. These materials achieve the elevation protection function at lower cost compared to expensive mineral sediments
2Reliability
If dikes are built to protect coastal areas, then inundation protection is achieved, but construction costs and maintenance requirements increase
Solution Approach 1:
The patent extracts the protection function from complex surface structures like dikes and transfers it to a simple subterranean injection process. By injecting lignocellulosic materials below ground level, the system eliminates the need for visible construction and ongoing maintenance of protective structures
Solution Approach 2:
The patent uses an intermediary injection process that delivers protective function without requiring permanent surface structures. The lignocellulosic materials act as an intermediary medium that provides elevation and protection while avoiding the complexity of dike construction and maintenance
3Reliability
If buildings are elevated onto piers or surface fill, then inundation protection is achieved, but construction costs and structural complexity increase
Solution Approach 1:
The patent moves the protection mechanism from the surface dimension to the subterranean dimension. Instead of elevating buildings onto surface structures, the system injects materials below ground level to create gradual terrain elevation, eliminating the need for piers and surface fill structures
Solution Approach 2:
The patent inverts the conventional approach by not elevating structures upward onto protective elements, but rather elevating the terrain downward through subterranean injection. This inversion eliminates the need for complex structural modifications to buildings
4Quantity of substance
If lignocellulosic materials are used for terrain elevation, then transportation and processing costs are reduced, but material density and porosity characteristics must be optimized
Solution Approach 1:
The patent optimizes the physical parameters of lignocellulosic materials, specifically selecting materials with appropriate density and porosity characteristics. These parameter optimizations ensure effective injection and stable terrain elevation while maintaining low transportation and processing costs
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 effectively elevates terrain and structures while reducing costs and environmental impact, improving seismic resilience and sequestering carbon, with lignocellulosic materials offering lower density and porosity advantages that simplify injection and long-term stability.
Implementation Method 1
The apparatus uses a fluid to displace and compact the lignocellulosic material in the subterranean space
Implementation Method 2
lignocellulosic material which are suspended in a slurry
Data Source
AI summary
A method for altering a characteristic of the ground. The method comprises the steps of preparing a lignocellulosic material, suspending the lignocellulosic material in a slurry to create a lignocellulosic slurry, and creating a fluid movement of the lignocellulosic slurry. The method further includes the steps of resuspending a portion of the lignocellulosic slurry with the fluid movement; and injecting the lignocellulosic slurry below the surface of the ground.