Structured Felt Geotextile for Containment Traction
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Solution Overview
Problem
Existing containment materials for environmental pollutants in oil and gas production areas lack sufficient traction and fluid management, leading to slip hazards and ineffective containment, despite the use of geomembrane and geotextile layers.
Innovation Solution
A containment material featuring a structured felt geotextile layer with a three-dimensional surface pattern, needle-punched and laminated with a geomembrane barrier layer, providing high traction and impervious protection against contaminant diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flat geotextile layer is used over the geomembrane, then the containment barrier is protected and fluid management is provided, but the surface provides insufficient traction creating slip hazards
Solution Approach 1:
The geotextile layer is transformed from a flat two-dimensional surface to a three-dimensional structured surface with raised ribs and recesses. This dimensional change creates surface variability that provides mechanical interlocking with footwear, significantly improving traction while maintaining the containment and fluid management functions of the underlying geomembrane barrier.
Solution Approach 2:
The geotextile layer is designed with localized variations in surface topology, featuring raised ribs in certain areas and recesses in others. This local quality differentiation creates zones of high friction for traction while maintaining overall containment effectiveness, allowing different regions of the same layer to serve different functional purposes.
2Ease of operation
If a structured geotextile layer with three-dimensional surface pattern is used, then high traction and fluid management are provided, but the manufacturing complexity increases
Solution Approach 1:
The manufacturing process utilizes parameter changes in the forming stage, where the geotextile layer is molded directly into its final three-dimensional structured configuration. By incorporating the surface pattern design into the forming parameters, the complex geometry is achieved through process control rather than additional manufacturing steps, thereby reducing overall manufacturing complexity despite the intricate final structure.
3Reliability
If the geotextile layer is bonded to the geomembrane, then the containment system provides impervious protection, but the puncture resistance from equipment is reduced
Solution Approach 1:
The geotextile layer exhibits local quality differentiation with varying fiber densities and structural properties across its surface. This localized variation allows certain regions to provide enhanced bonding with the geomembrane for containment integrity while other regions maintain higher puncture resistance to accommodate equipment loads, resolving the contradiction between bonding strength and puncture resistance.
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 solution offers a durable, puncture-resistant, and reusable containment system with improved traction and fluid management, effectively preventing environmental pollutant escape and enhancing safety and environmental protection.
Implementation Method 1
needle-punched and laminated with a geomembrane barrier layer
Implementation Method 2
geomembrane barrier layer, providing high traction and impervious protection against contaminant diffusion
Implementation Method 3
structured felt geotextile layer with a three-dimensional surface pattern... providing high traction
Implementation Method 4
needle-punched and laminated with a geomembrane barrier layer, providing durable, puncture-resistant
Data Source
AI summary
A containment material for a containment system to provide protection against the diffusion of contaminants in a containment area. A structured felt geotextile surface layer is joined with a geomembrane barrier layer to form a lamination. The geomembrane barrier layer is substantially impervious to liquid diffusion. The structured felt geotextile surface layer comprises a needle-punched, non-woven felt with an upper surface structured to have a surface pattern of peaks and valleys. A containment system is formed from a plurality of strips of containment material joined by liquid-impervious bonds to provide coverage to the containment area. A process for forming a containment material comprises providing a structured felt geotextile layer formed with first and second needling operations to produce a surface pattern and a liquid impervious geomembrane barrier layer and joining the layers to form a lamination.