SAFE Foundation System for Seismic and Flood Mitigation
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Solution Overview
Problem
Current methods for mitigating earthquake and flood damage are costly and inefficient, particularly for medium and smaller-sized buildings, as they often require expensive base isolation systems or levees that are vulnerable to collapse during seismic events or flooding.
Innovation Solution
A three-part foundation system comprising a containment vessel, a buffer medium, and a construction platform, where the platform floats on the buffer medium, minimizing seismic forces during earthquakes and rising with floodwaters, providing a cost-effective and scalable solution for both seismic and flood damage mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base isolation systems are used for earthquake mitigation, then seismic damage is reduced, but construction cost increases significantly
Solution Approach 1:
The patent introduces a buffer medium (water, gas, or liquefiable solid) as an intermediary between the containment vessel and the construction platform. This buffer medium isolates the platform from seismic forces transmitted through the ground, achieving earthquake mitigation without requiring expensive base isolation systems. The buffer medium absorbs and dissipates seismic energy, protecting the building while maintaining cost-effectiveness.
Solution Approach 2:
The patent employs hydraulic principles by using a fluid buffer medium (water or gas) to provide seismic isolation. The fluid's incompressibility and ability to transmit pressure allow the platform to float and move independently from ground motion, achieving passive seismic protection through hydraulic cushioning without active control systems or complex mechanical components.
2Object-affected harmful factors
If levees are built for flood control, then flooding is prevented, but vulnerability to earthquake collapse increases
Solution Approach 1:
The patent transforms the static, rigid levee structure into a dynamic, adaptive floating platform system. The construction platform can rise and fall with flood waters while remaining buoyant, and simultaneously float independently on the buffer medium during earthquakes. This dynamic behavior allows the structure to adapt to both flood and seismic conditions without catastrophic failure.
Solution Approach 2:
The patent uses buoyancy as a counteracting force against both flood waters and seismic forces. The buffer medium provides upward buoyant force that counterweights the building during earthquakes, preventing collapse. During floods, the platform's buoyancy allows it to rise with water levels, counteracting the harmful effects of flooding without requiring rigid containment structures.
3Object-affected harmful factors
If buildings are raised to mitigate flood damage, then flood protection is achieved, but construction efficiency decreases
Solution Approach 1:
The patent creates a multi-functional foundation system that simultaneously provides seismic isolation, flood protection, and stable construction support. The buffer medium serves multiple purposes: isolating seismic forces, providing buoyancy during earthquakes, and enabling the platform to rise with flood waters. This universal solution eliminates the need for separate mitigation structures, improving construction efficiency while addressing both hazards.
4Device complexity
If traditional foundation systems are used, then construction cost is reduced, but damage from earthquakes and floods increases
Solution Approach 1:
The patent divides the foundation system into three distinct segments: the containment vessel (ground-level structure), the buffer medium (isolation layer), and the construction platform (building support). This segmentation allows each component to perform its specific function independently - the containment vessel anchors to ground, the buffer medium isolates seismic forces, and the platform provides stable support. This modular approach achieves disaster protection at reasonable cost by distributing functions across simple, separate elements.
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 system effectively reduces damage from both earthquakes and floods by minimizing seismic force transmission and allowing buildings to float with rising water levels, making it suitable for various building sizes and locations, including areas prone to soil liquefaction and flooding.
Implementation Method 1
the buffer medium's ability to minimize the transfer of seismic forces
Implementation Method 2
the construction platform and building float on top of the buffer medium
Data Source
AI summary
A self-adjusting floating environment (SAFE) system is described. The SAFE system can include a construction platform which floats on a buffer medium and a vertical motion isolation system. In an earthquake, a construction platform floating on a buffer medium may experience greatly reduced shear forces. In a flood, a construction platform floating on a buffer medium can be configured to rise as water levels rise to limit flood damage. The vertical motion isolation system can reduce the vertical motion of the construction platform induced from vertical ground movements during an earthquake.