Permeable Kerb Rainwater Storage for Urban Vegetation Health
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In urban environments, the natural water cycle is disrupted due to impervious surfaces, leading to unhealthy vegetation growth, increased maintenance costs, and susceptibility to pathogens, with existing rainwater harvesting systems failing to effectively simulate the natural water cycle and support healthy plant growth.
Innovation Solution
A vegetation maintenance system comprising a permeable kerb, water-diversion layer, water-storage layer, nutrient layer, and vegetation-planting trough that simulates a natural water cycle, allowing rainwater to permeate, store, and provide nutrients directly to plants, reducing the need for manual irrigation and minimizing maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rainwater is diverted through underground drainage networks in impervious urban environments, then water management is achieved, but the natural water cycle is broken and vegetation health deteriorates
Solution Approach 1:
The system segments the water management function into multiple layers: permeable kerb for surface water capture, water diversion layer for directional flow control, water storage layer for reservoir function, and nutrient layer for plant support. This segmentation allows simultaneous achievement of water management and vegetation health by creating distinct functional zones that work together
Solution Approach 2:
The patent introduces an intermediary vegetation maintenance system between the impervious urban environment and the natural ground. This intermediate system includes permeable structures and layered soil components that mediate between the harsh urban conditions and plant root systems, enabling both water management control and natural water cycle simulation
2Reliability
If vegetation is planted in shallow holes with compacted engineered fill, then infrastructure risk is reduced, but root mass development and vegetation health are significantly limited
Solution Approach 1:
The system applies local quality by creating a specialized nutrient layer with optimal soil composition, water retention properties, and nutrient content specifically for the root zone. This localized quality enhancement allows healthy root development in the planting trough while maintaining infrastructure safety through the contained structure
Solution Approach 2:
The vegetation planting trough is nested within the layered structure (permeable kerb, water diversion layer, water storage layer, nutrient layer), creating a nested configuration where the root zone is protected and enhanced by surrounding functional layers. This nesting allows root mass development within a confined space while benefiting from multiple supportive functions
3Reliability
If manual irrigation and soil maintenance are provided to vegetation, then plant survival is ensured, but time, labor, money, and water maintenance costs are high
Solution Approach 1:
The system implements self-service by enabling vegetation to access water and nutrients autonomously through the permeable structure and layered soil system. Rainwater captured by the permeable kerb naturally percolates through the water storage and nutrient layers to the root zone, eliminating the need for manual irrigation and reducing maintenance requirements
Solution Approach 2:
The system performs preliminary action by pre-capturing and storing rainwater in the water storage layer before it is needed by the plants. The nutrient layer is pre-prepared with appropriate soil composition and nutrients, so when water becomes available, the vegetation can immediately utilize both water and nutrients without requiring ongoing manual intervention
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 ensures healthy plant growth by providing sustained water and nutrient supply, reducing irrigation needs and maintenance costs, while preventing flooding and supporting robust root development.
Implementation Method 1
the permeable kerb is located on the side of the road, at the pavement edge... After it rains in a city, the natural water cycle infiltration process cannot occur. Only drainage pit and pipe systems and combined sewers can remove this rainwater.
Implementation Method 2
The water-storage layer is disposed at one side of the water-diversion layer away from a surface of the road and is configured to store water.
Implementation Method 3
The water-storage layer includes a first frame body and a semi-permeable layer which allow water to pass freely. The semi-permeable layer is disposed around the first frame body and disposed on a surface of the first frame body away from the water-diversion layer. The semi-permeable layer is slowly permeable.
Implementation Method 4
The stored and infiltrated rainwater can cool the soil whilst reducing impacts of flooding and capacities on combined sewers.
Implementation Method 5
The nutrient layer is disposed at one side of the water-storage layer away from the water-diversion layer, and is configured to provide water, soil, and nutrients for growth of vegetation.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A vegetation maintenance system includes a permeable kerb (10), a water-diversion layer (30), a water-storage layer (50), a nutrient layer (70), and a vegetation-planting trough (90). The permeable kerb (10) is disposed at at least one side of a road in a road direction. The water-diversion layer (30) is located on a side surface of the permeable kerb (10) and is disposed close to a bottom of the permeable kerb (10). The water-storage layer (50) is disposed at one side of the water-diversion layer (30) away from a surface of the road, and is configured to store water. The nutrient layer (70) is disposed at one side of the water-storage layer (50) away from the water-diversion layer (30), and is configured to provide water, soil, and nutrients for growth of vegetation. The vegetation-planting trough (90) penetrates through the water-diversion layer (30) and the water-storage layer (50), is embedded in the nutrient layer (70), and is configured for vegetation planting. The vegetation maintenance system can simulate a natural water cycle pathway of "natural rainfall, nourishing plants from top to bottom", such that healthy growth of the plants in urban environment is ensured. In the meanwhile, rainwater can be fully utilized to irrigate the vegetation, such that labour costs are reduced, and accumulated water on the surface of the road and a flood-waterlogging damage can be prevented effectively.