Permeable Paving Modules with Integrated Alignment Guides

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Solution Overview

Problem

The installation of permeable paving systems is time-consuming and inefficient due to issues like frequent measuring for stake placement, driving stakes into the ground, and accommodating terrain slopes, while also requiring multiple layers that can increase thickness and interfere with infrastructure piping or high groundwater tables.

Innovation Solution

A permeable paving system featuring a substantially hollow structure with a base layer for fluid storage and a surface that restricts aggregate from entering the storage area, allowing for easy fluid conveyance, adaptability to slopes, and elimination of stake-driven string lines, with interlocking modules that reduce overall depth and facilitate rainwater harvesting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional permeable paving installation methods are used with multiple layers and stakes, then the pavement can be installed on various terrains, but the installation process becomes time-consuming and labor-intensive

Engineering Contradiction:
Improveinstallation speedVSAvoidtime for stake placement and measuring
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The pavement system is divided into modular units with standardized dimensions and interlocking features. Each module contains integrated guide edges and slope adjustment mechanisms, eliminating the need for separate stake placement and string line setup. The modules can be quickly assembled on-site without extensive measuring and alignment work.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The necessary alignment and slope adjustment features are pre-integrated into the pavement modules during manufacturing. Guide edges, interlocking mechanisms, and slope adjustment elements are built into the modules before installation, eliminating the need for on-site stake placement, string line setup, and repeated measuring operations.

Inventive Principle:
Principle #10Preliminary action

2Strength

If multiple surface paving layers are placed on top of structural modules, then the pavement structure gains strength, but the overall thickness increases which can interfere with infrastructure piping

Engineering Contradiction:
Improvepavement structure strengthVSAvoidoverall pavement thickness
Core Design Contradiction:
StrengthVSLength of stationary object

Solution Approach 1:

The pavement system uses a composite structure combining a structural module base layer with a permeable paving surface layer. The structural module provides mechanical strength and stability, while the permeable surface layer provides the required load-bearing capacity. This composite approach allows for a thinner overall structure compared to using only thick permeable surface layers, reducing interference with underlying infrastructure piping.

Inventive Principle:
Principle #40Composite materials

3Manufacturing precision

If frequent measuring and stake driving are performed to ensure proper elevation, then the pavers can be set at the proper elevation, but the installation process becomes more complex and time-consuming

Engineering Contradiction:
Improvepaver elevation accuracyVSAvoidinstallation process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pavement modules incorporate self-aligning features including guide edges and interlocking mechanisms that automatically ensure proper elevation and alignment during installation. The modules are designed to self-level on the subgrade, eliminating the need for frequent measuring and stake adjustment operations. The integrated slope adjustment mechanisms allow the modules to automatically adapt to terrain variations without complex setup procedures.

Inventive Principle:
Principle #25Self-service

4Manufacturing precision

If stakes are driven into the ground multiple times for string line placement, then the proper elevation can be maintained, but the installation process becomes more labor-intensive

Engineering Contradiction:
Improveelevation controlVSAvoidinstallation ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The elevation control and alignment features are pre-integrated into the pavement modules during manufacturing. Guide edges, reference marks, and interlocking features are built into the modules before installation, allowing workers to simply place and connect the modules without repeated stake driving and string line adjustment operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The modules incorporate self-aligning features that automatically ensure proper elevation and alignment during installation. The guide edges and interlocking mechanisms guide the modules into correct positions without requiring external reference lines or repeated adjustments, making the installation process simpler and less labor-intensive.

Inventive Principle:
Principle #25Self-service

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 solution enables faster, less labor-intensive installation with reduced material needs, maintains structural integrity, and accommodates various permeable materials, slopes, and water management requirements, while providing a guide for paver alignment and reducing the need for stakes and spikes.

Implementation Method 1

a substantially hollow structure defining a base layer with a fluid storage area

Methodology Applied
Scientific EffectFluid storage:

Implementation Method 2

a surface that restricts the paving surface material, and/or aggregate from entering the fluid storage area

Methodology Applied
Scientific EffectPhysical restriction/filtering: Filter (physical)

Implementation Method 3

This refers to a paving surface that allows storm water to pass through to a storage layer in the base where it can infiltrate into the soils below

Methodology Applied
Scientific EffectPermeation: Permeation

Data Source

PatentEP2971360B1Permeable paving system
Publication Date: 2024.07.03 WHITE CHARLES R
  • EP2971360B1 patent drawingFigure 1
  • EP2971360B1 patent drawingFigure 2
  • EP2971360B1 patent drawingFigure 3

AI summary

A permeable paving system having a base layer and a paving layer, in which the base layer is made of a plurality of substantially hollow structural modules having a rigid bottom wall and a substantially parallel to a rigid top wall retained in a fixed space relationship from each other by a plurality of spacers, in which the structural module has a plurality of side walls extending between the perimeters of the top wall and the bottom wall, in which the top and bottom walls have apertures to allow movement of fluids into and out of the structural modules, and in which the top wall has a plurality of guide lines configured for alignment of paving material, and/or as a guide for cutting the structural module. Alternatively, instead of guide lines, there may be string line posts connectable to an element of the permeable paving system configured to extend above.