Structural Cell Hardscape Support for Uncompacted Root Soil
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Solution Overview
Problem
Trees planted near hardscapes, such as roads and sidewalks, often struggle to grow due to soil compaction, which impedes root penetration and stunts their growth.
Innovation Solution
A structural cell system comprising a base, legs, and a top that supports hardscapes while maintaining soil in an uncompacted state, allowing tree roots to grow freely and facilitating stormwater management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If structural cells are designed to support hardscapes and heavy loads, then structural strength is improved, but the complexity of the device increases
Solution Approach 1:
The structural cell is divided into multiple components: a base portion with receptacles, multiple leg portions that can be attached to the receptacles, and a top portion. This segmentation allows each component to be optimized independently for its specific function while collectively providing the required structural strength to support hardscapes and heavy loads.
Solution Approach 2:
The leg portions serve multiple functions: they provide structural support to bear heavy loads, they can be attached in various configurations to different receptacles, and they maintain soil aeration spaces. This multi-functionality reduces the need for separate components, thereby managing device complexity while maintaining strength.
2Volume of moving object
If legs are attached to each other to extend from the base, then the volume for root growth is increased, but the device complexity increases
Solution Approach 1:
The leg portions are designed to be attachable and detachable, allowing the structural cell configuration to be dynamically adjusted. Legs can be attached to each other in series to extend the vertical dimension and create larger volumes for root growth, or attached in parallel to expand horizontal spacing, depending on the specific installation requirements.
Solution Approach 2:
Leg portions can be attached in a nested configuration where one leg is attached to another, creating an extended structure that maximizes the use of vertical space while maintaining a compact overall form factor when not in use.
3Strength
If the base and top are designed to support commercial vehicle traffic loads, then load-bearing capacity is improved, but manufacturing complexity increases
Solution Approach 1:
The base and top portions are designed with localized reinforcement and specific geometric features at critical stress points to handle commercial vehicle traffic loads. Rather than making the entire structure uniformly complex, only the necessary areas are strengthened, simplifying overall manufacturing while maintaining high load-bearing capacity.
Data Source
AI summary
A structural cell system for supporting hardscape, allowing tree root growth, and managing stormwater underneath the hardscape. The system may include: a base having a plurality of receptacles and a plurality of support members interconnecting the receptacles; a plurality of legs each sized and shaped to be attachable to the base within one of the receptacles so as to extend from the base, and to be attachable to another of the legs so that pairs of legs attached to each other collectively extend from the base; and a top attachable to the legs. Outer edges of the base, the top, and the legs attached thereto define a volume, and are configured to support at least that portion of the hardscape overlying the top as well as a commercial vehicle traffic load thereon, while maintaining soil in a substantially uncompacted state throughout at least approximately ninety percent of the volume.