Reinforced Stabilization Grid for Concrete Load Distribution
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Solution Overview
Problem
Existing ground stabilizing systems, such as the Dupont™ Plantex® Groundgrid®, face challenges in achieving structural stability, particularly when used with curable load-bearing materials like concrete, as they lack sufficient reinforcement to effectively distribute and resist loads.
Innovation Solution
A ground stabilization grid comprising polygonal cells formed by polymer walls with reinforcing ribs that extend between opposing walls, providing enhanced structural strength and stability by engaging between 25% and 75% of the wall height, and a method of producing a stabilized pad by positioning the grid on a surface and filling cells with a load-bearing material like concrete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional honeycomb grid structure is used for ground stabilization, then the grid can be positioned on the ground surface and filled with gravel or concrete, but the grid lacks sufficient structural stability and reinforcement to effectively distribute and resist loads
Solution Approach 1:
The grid structure is divided into polygonal cells with multiple walls, where each cell is further segmented by reinforcing ribs that divide the cell into multiple sections. This segmentation allows the structure to distribute loads more effectively across multiple load paths while maintaining overall structural stability.
Solution Approach 2:
Reinforcing ribs are added that extend between opposing walls at specific heights (25%-75% of wall height), creating a three-dimensional reinforcement pattern within the two-dimensional grid plane. This dimensional enhancement provides additional structural strength without significantly increasing overall complexity.
2Ease of manufacture
If the grid structure is simplified for ease of manufacture and installation, then manufacturing and positioning become easier, but the structural strength and load distribution capability are reduced
Solution Approach 1:
Reinforcing ribs are strategically positioned at specific locations within each cell (engaging walls at 25%-75% height) rather than uniformly throughout. This localized reinforcement provides maximum structural benefit at critical load-bearing points while minimizing additional manufacturing complexity.
Solution Approach 2:
The grid structure combines polymer wall material with reinforcing ribs to create a composite structure that leverages the strengths of both materials. The polymer provides flexibility and form, while the ribs provide tensile and bending strength, achieving high load resistance with relatively simple manufacturing.
Data Source
AI summary
An artificial turf system utilizing a surface stabilization grid. The grid includes (i) a plurality of closed cells having a wall height, with each cell sharing a common wall section with at least two adjacent cells, and (ii) substantially each cell includes at least one reinforcing rib extending across the cell to attach to opposing walls of the cell. A cementitious load bearing material fills substantially all the cells of the grid, a layer of drainage fabric is positioned over the stabilization grid, and an artificial turf is positioned over the layer of drainage fabric.