Angled Permeable Paving Slab for Prefab Parking Layouts

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Solution Overview

Problem

Existing prefab paving slabs are unsuitable for constructing angled parking spaces efficiently, as they require on-site cutting, protrude outside the spaces, and have limited water permeability and vegetation growth capacity, especially when used in turfstone pavers.

Innovation Solution

A prefab paving slab with a prism-shaped paver body featuring continuous holes and non-right internal angles, allowing efficient construction of angled parking spaces without on-site cutting, using reinforced materials like reinforced concrete with a lattice structure, ensuring high water permeability and vegetation growth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If straight pavers are used for constructing parking spaces, then the parking spaces can be constructed efficiently with high water permeability, but the pavers protrude outside the outermost parking spaces and cannot be easily cut or sawn on site

Engineering Contradiction:
Improveconstruction efficiencyVSAvoidon-site cutting and fitting
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The paver is divided into modular segments with specific geometric shapes (parallelogram or trapezoid) that allow them to fit together in angled configurations. The segmentation enables the paver to be designed for specific angular orientations while maintaining ease of assembly without requiring on-site cutting.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The paver employs asymmetric geometric shapes (parallelogram or trapezoid) rather than symmetric rectangular shapes. This asymmetry allows the paver to align perfectly with angled parking space boundaries, eliminating protrusions while maintaining efficient construction. The asymmetric shape is specifically designed to fit the required angular orientation.

Inventive Principle:
Principle #4Asymmetry

2Adaptability or versatility

If turfstone pavers with holes are used, then water permeability and vegetation growth capacity are enhanced, but the structural strength may be reduced

Engineering Contradiction:
Improvewater permeability and vegetation growthVSAvoidstructural strength
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The paver incorporates a system of holes or voids throughout its structure, creating a porous configuration that enables water permeability and vegetation growth. These holes are strategically positioned and sized to maintain adequate structural strength while providing the desired adaptability for drainage and plant life.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The paver may utilize composite material construction, combining materials with different properties to achieve both strength and permeability. This could involve using reinforced concrete or other composite structures where the material composition provides structural integrity while incorporating voids or permeable layers for water and plant access.

Inventive Principle:
Principle #40Composite materials

3Shape

If paving bricks are used for angled parking spaces, then the pavers can fit the angled configuration, but the labor intensity increases and water permeability is reduced

Engineering Contradiction:
Improveangled configuration fitVSAvoidlabor intensity
Core Design Contradiction:
ShapeVSProductivity

Solution Approach 1:

The paver is designed as a single modular unit with the correct angular geometry (parallelogram or trapezoid) that fits angled parking spaces directly. This segmentation into properly-shaped modules eliminates the need for on-site cutting and reduces labor intensity compared to using smaller bricks that would require assembly and fitting.

Inventive Principle:
Principle #1Segmentation

4Stability of the object's composition

If ground preparation is performed before laying pavers, then the ground stability is improved, but the construction time increases and drainage may be impeded

Engineering Contradiction:
Improveground stabilityVSAvoidconstruction time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The paver is designed with built-in stabilization features such as expanded bases, anchor points, or interlocking mechanisms that provide ground stability without requiring extensive preliminary ground preparation. This preliminary action is incorporated into the paver itself rather than requiring separate ground treatment steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The paver employs parameter changes in its design, such as adjusting the base area, depth, or material properties to optimize stability. By changing these parameters in the paver structure itself, adequate ground stability is achieved without requiring time-consuming ground preparation or modification.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4678818A1Prefab paving slab and parking lot
Publication Date: 2026.01.14 BEARZATTO EDO
  • EP4678818A1 patent drawingFigure 1A~1B
  • EP4678818A1 patent drawingFigure 2
  • EP4678818A1 patent drawingFigure 3

AI summary

A prefab paving slab (1) for constructing along a straight path a row of parking spaces parallel to this path is described. The prefab paving slab (1) comprises a prism-shaped paver body (2) comprising an upper base (3) and a lower base (4). The paver body (2) is provided with a number of continuous holes (7) which each extend through both the upper base (3) and the lower base (4) for the purpose of allowing passage of water and/or vegetation. The lower and the upper base (3, 4) each comprise at least one non-right internal angle for constructing the parking spaces such that they each lie at the same non-right angle relative to the path, as seen from above.