Dike Fibre Reinforcement for Water Pressure Resistance
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Solution Overview
Problem
Existing dikes face instability and potential failure at exceptionally high water levels due to increased water pressure, which can lead to dike breaches, especially with rising sea levels and the presence of animals like moles that undermine stability.
Innovation Solution
Incorporating fibres into the natural vegetation of a dike's inner and outer slopes to enhance the strength and anchoring of grass roots, improve drainage, and increase the stability of the dike, using individual fibres inserted into the substrate rather than woven geotextile materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional reinforcement methods (stability berm, piping berm, sheet piling) are used to strengthen the dike, then the dike's resistance to water pressure improves, but the device complexity and construction cost increase
Solution Approach 1:
The patent changes the physical parameters of the soil by inserting fibres that alter the mechanical properties of the soil matrix. The fibres increase the tensile strength and shear resistance of the soil, effectively changing its strength parameters without adding complex structural elements. This allows the dike to withstand higher water pressures through material property modification rather than structural reinforcement.
Solution Approach 2:
The patent creates a composite material system by combining natural vegetation roots with inserted fibres in the soil matrix. This composite structure leverages the anchoring effect of roots and the reinforcement effect of fibres working together, achieving enhanced strength through material composition rather than complex structural design.
2Stability of the object's composition
If the dike is reinforced with traditional civil engineering operations (widening, inner berm), then the stability improves, but the land area required and construction time increase
Solution Approach 1:
By inserting fibres into the existing dike structure, the patent modifies the mechanical parameters of the soil (shear strength, tensile resistance) without changing the geometric parameters (width, height, slope). This allows stability improvement while maintaining the same land footprint, as the reinforcement occurs at the material level rather than requiring structural expansion.
3Object-affected harmful factors
If natural vegetation is used for erosion protection, then the aesthetic appearance and ecological benefits improve, but the resistance to exceptionally high water pressure is insufficient
Solution Approach 1:
The patent enhances natural vegetation by combining it with inserted fibres, creating a composite reinforcement system. The natural vegetation provides erosion protection and ecological benefits, while the added fibres contribute additional tensile strength and structural stability, enabling the system to resist both erosion and exceptionally high water pressures simultaneously.
4Strength
If the dike height is increased to withstand higher water levels, then the water pressure resistance improves, but the construction cost and potential negative environmental impact increase
Solution Approach 1:
Instead of increasing the geometric dimensions (height, volume) of the dike, the patent changes the mechanical parameters of the existing material by inserting fibres. This allows the same quantity of soil and vegetation to provide enhanced water pressure resistance through improved material properties, avoiding the need for additional materials or earthmoving operations.
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 fibre reinforcement improves the dike's resistance to water pressure, reduces erosion, and discourages animal digging, leading to enhanced stability and reduced maintenance needs, allowing for steeper slopes and increased wave overtopping resistance without heightening the dike.
Implementation Method 1
Because there is possibly also an improvement in the drainage capacity of the present water barrier, there will be a rapid discharge of surplus water, this enhancing the stability of the water barrier.
Data Source
AI summary
The present invention relates to a water barrier, in particular a dike, comprising an inner slope, a crown and an outer slope, wherein the outer slope is located on the waterside. The water barrier is characterized in that the natural vegetation of at least one of the elements of inner slope, crown and outer slope is provided with fibres inserted into said vegetation.