Modular Permeable Paving Blocks with Internal Storage Cavities
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Solution Overview
Problem
Conventional paving systems are impervious to rain, leading to stormwater runoff issues, and existing permeable systems rely on soil infiltration, which is inefficient in heavy soils and difficult to maintain due to sedimentation in underground storage systems.
Innovation Solution
A modular permeable paving system using interlocking blocks with built-in storage cavities that allow fluid drainage and storage, incorporating cables for assembly and easy maintenance, and a subgrade design that facilitates water infiltration and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional impervious paving systems are used, then structural strength and durability are improved, but stormwater runoff management deteriorates
Solution Approach 1:
The paving system is divided into individual modular blocks with hollow cavities, allowing water to be stored within each block rather than requiring a separate underground system. This segmentation enables structural integrity while providing distributed stormwater storage capacity throughout the paved surface.
Solution Approach 2:
The paving blocks serve multiple functions simultaneously: they provide structural support for vehicular and pedestrian traffic, create an aesthetically pleasing paved surface, and store stormwater within their hollow cavities. This multi-functionality eliminates the need for separate stormwater management infrastructure.
2Object-generated harmful factors
If permeable paving systems relying on soil infiltration are used, then stormwater management is improved, but infiltration efficiency deteriorates in heavy soils
Solution Approach 1:
The hollow cavities within the paving blocks serve as an intermediary storage mechanism between the impervious paved surface and the underlying soil. Water is first captured and stored in the block cavities, then slowly released to the subgrade for infiltration, decoupling the infiltration rate from the stormwater management capability.
Solution Approach 2:
The paving blocks pre-store stormwater in their hollow cavities before infiltration occurs, allowing water to be held and managed even when soil infiltration rates are slow. This preliminary storage action ensures stormwater is captured regardless of underlying soil conditions.
3Quantity of substance
If underground storage systems are used, then stormwater storage capacity is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The storage system is segmented into individual accessible blocks rather than a single underground chamber. Each block with its hollow cavity can be independently removed and cleaned, providing easy maintenance access to the entire storage system without requiring excavation or specialized equipment.
Solution Approach 2:
The modular block design enables simple do-it-yourself maintenance where individual blocks can be lifted out, cleaned of sediment and debris, and reinstalled by facility operators without professional intervention, significantly reducing maintenance costs and complexity.
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
The system effectively manages stormwater infiltration across various soil types, reduces the need for additional management systems, and allows for easy cleaning and maintenance by storing rainwater within the blocks and filtering it into the subgrade.
Implementation Method 1
the blocks include a storage cavity storing fluid within the block
Implementation Method 2
The blocks are designed to facilitate water drainage down the sides of the block
Implementation Method 3
allowing the water to be absorbed closer to the paved surface
Data Source
AI summary
A systems for a permeable pavement system is described. The permeable pavement system includes blocks designed to facilitate water seepage between the blocks and to permit water storage within the blocks. The blocks may be unified together with the use of a cable inserted through each block to create paving units that facilitate installation and maintenance of the pavement system. The paving units may be moved with loops on the ends of the cables. Multiple paving units may be linked together with lock blocks.