Folded Geotextile Sheet Grid With Offset Connections
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Solution Overview
Problem
Existing methods for forming a ground-covering layer, such as those using geotextile strips, are complex and require numerous operations, especially when aiming for a closed grid on the underside.
Innovation Solution
A method involving a sheet with parallel folds that are connected at offset locations to form a grid, which can be filled with functional materials, and connections can be made through gluing, stitching, or welding, allowing for simpler construction and adaptation for various purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate geotextile strips are used to form a grid, then the ground-covering layer can be formed, but the process becomes complicated and requires many operations
Solution Approach 1:
The patent merges multiple separate geotextile strips into a single integrated sheet with pre-formed parallel folds. This single sheet contains all the necessary fold structures that will become the grid walls, eliminating the need to handle and connect multiple separate strips. The merging is achieved by creating a continuous sheet with folded sections that define the grid spaces, thereby simplifying the manufacturing process while maintaining the grid structure functionality.
Solution Approach 2:
The single geotextile sheet is segmented into multiple parallel folds that will form the grid walls. These folds are created by folding the sheet in specific patterns to create substantially parallel fold structures. The segmentation allows the sheet to be divided into multiple functional regions (grid spaces) while remaining a single continuous material, reducing the number of operations needed compared to using separate strips.
2Ease of manufacture
If a grid is formed from separate strips, then the grid structure is created, but the underside closure requires additional separate groundsheets
Solution Approach 1:
The patent combines the groundsheet function and the grid structure into a single integrated component. The geotextile sheet itself forms both the grid walls (through its folds) and the groundsheet base. When the folds are connected to each other, they automatically close the underside of the grid spaces using the same sheet material, eliminating the need for a separate groundsheet layer and reducing component complexity.
3Reliability
If connections are formed over the full height of folds, then maximum stabilization is achieved, but the structure loses adaptability for other functions
Solution Approach 1:
The patent applies local quality by varying the connection extent along the fold height. Connections are formed only over a portion of the fold height rather than the full height, creating different functional zones: the connected portion provides stabilization strength, while the unconnected upper portion remains available for additional functions such as forming upright elements, receiving vegetation, or attaching other components. This localized differentiation allows the structure to simultaneously achieve stabilization and adaptability.
Solution Approach 2:
The fold structure is segmented into different functional zones along its height. The lower portion of each fold is connected to adjacent folds for stabilization, while the upper portion remains unconnected and available for other functions. This vertical segmentation allows different parts of the same structure to serve different purposes, enhancing both reliability and adaptability.
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 simplifies the formation of a ground-covering layer, allows for direct underside closure, and enables easy adaptation with different materials for stabilization, drainage, or as a damping layer, while being environmentally friendly and recyclable.
Implementation Method 1
forming a number of substantially parallel folds in the sheet
Implementation Method 2
The connections can be formed in simple manner by glueing the folds locally to each other
Implementation Method 3
It is on the other hand also possible to form the connections by stitching the folds locally to each other
Implementation Method 4
When the sheet is manufactured at least partially from plastic, the connections can also be formed by welding the folds locally to each other, for instance by ultrasonic welding
Data Source
AI summary
Method for forming a ground-covering layer (1), comprising the steps of providing a sheet (2); forming a number of substantially parallel folds (3) in the sheet; and urging toward each other and connecting to each other adjacent folds at different locations wherein the connections of each fold to an adjacent fold on the one side are offset relative to the connections to an adjacent fold on the other side. Ground-covering layer (1), comprising a sheet (2) with a number of substantially parallel folds (3), which folds are connected at different locations to adjacent folds, wherein the connections of each fold to an adjacent fold on the one side are offset relative to the connections to an adjacent fold on the other side.