Soil Stabilizing Slab Waveform Edge Design
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Solution Overview
Problem
Existing soil stabilization slabs with honeycomb structures are aesthetically unpleasing due to visible edges of the cells, which compromise their load-bearing capacity and are prone to deformation under load, especially on sloping surfaces.
Innovation Solution
The slabs feature a peripheral wall with a waveform upper edge, comprising regular sawtooth or sinusoidal teeth, where vertices are shared between adjacent cells, providing enhanced mechanical resistance and deformation limitation through struts and notches, allowing the slabs to blend with filling material and adapt to surface variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the upper edge of peripheral walls is made visible to define cell boundaries, then the structural integrity and load-bearing capacity are maintained, but the aesthetic appearance deteriorates due to visible artificial edges
Solution Approach 1:
The waveform edge creates local variations in the peripheral wall structure, with peaks providing structural strength and depression parts providing aesthetic blending. This local differentiation allows different portions of the same structure to serve different functions - the peaks maintain load-bearing capacity while the depression parts hide the artificial appearance by blending with filling material.
2Shape
If notches are added to the upper edge of peripheral walls to improve aesthetics, then the visual appearance improves by reducing visibility, but the mechanical strength deteriorates due to stress concentration at notch roots
Solution Approach 1:
The waveform edge with its smooth curved peaks and depression parts eliminates sharp corners and stress concentration points. The continuous curved geometry provides aesthetic blending with filling material while maintaining structural integrity by avoiding stress concentration that would occur with sharp notches or angular features.
3Shape
If the peripheral wall height is reduced to make edges less visible, then the aesthetic appearance improves, but the load-bearing capacity deteriorates
Solution Approach 1:
The waveform edge introduces a vertical dimension variation to the peripheral wall top surface. By creating peaks and depression parts, the structure achieves aesthetic blending through vertical modulation rather than through reducing overall wall height. The peaks maintain the effective load-bearing height while the depression parts provide the visual blending effect.
4Shape
If additional material layer is added above cells to hide edges, then the aesthetic appearance improves, but the material stability deteriorates due to creep on sloping surfaces
Solution Approach 1:
The waveform edge is pre-formed as an integral part of the slab structure, creating retention features before any filling material is added. The depression parts of the waveform edge act as pre-positioned retention zones that mechanically interlock with filling material, preventing creep and material loss on sloping surfaces before the material is even in place.
Data Source
Figure 1~2
Figure 3~5a
Figure 5b~6b
AI summary
The invention relates to a soil stabilization grid (1) with cells (2; 2a) intended to contain a filling material, for example a planting substrate, such as soil, or aggregates such as sand, gravel, or other materials. Each cell (2; 2a) has a peripheral wall (3) extending perpendicularly from a base plane (4) and includes a lower edge (5) secured, by gluing and/or welding and/or interlocking, to a support (6). Advantageously, the peripheral wall (3) of a cell (2, 2a) has an upper edge defining a wave-shaped edge (15) (16) comprising vertices (17) between which extend recessed portions (18). The vertices (17) are shared between at least two adjacent cells (2, 2a) and are located at the level of an intersection node (9) between these cells.