Polyethylene Trench Shoring Panels with Corner Protection
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Solution Overview
Problem
Plywood sheeting panels used in hydraulic shoring systems are prone to delamination, breaking, and splintering, posing safety hazards and requiring frequent replacement, which increases maintenance and installation costs while failing to meet long-term durability and safety standards.
Innovation Solution
A substantially rectangular polyethylene sheeting panel with hand holes, buttons for traction, and corner holes is introduced, offering improved handling, durability, and safety, meeting or exceeding OSHA regulations for aluminum hydraulic shoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plywood sheeting panels are used in hydraulic shoring systems, then the panels provide sufficient structural support for trench shoring, but the panels are prone to delamination, breaking, and splintering which reduces reliability and increases maintenance costs
Solution Approach 1:
The patent changes the material parameter from plywood to polyethylene, fundamentally altering the material properties to eliminate delamination and splintering issues. The polyethylene material maintains structural support functionality while eliminating the harmful degradation mechanisms inherent in plywood when exposed to water and moisture.
Solution Approach 2:
The patent employs composite material construction by integrating polyethylene panels with metal edge protectors and corner protectors. This composite approach combines the moisture-resistant properties of polyethylene with the structural reinforcement of metal components, creating a shoring system that exceeds the durability of traditional plywood panels.
2Reliability
If plywood panels are used for shoring, then the panels meet OSHA regulations for trench support, but the panels require frequent replacement increasing maintenance costs
Solution Approach 1:
The patent adopts a different approach by creating a long-lasting, reusable polyethylene panel system that eliminates the need for frequent replacement. While individual components like edge protectors and corner protectors can be replaced, the main panels are designed to last significantly longer than plywood panels, reducing maintenance time and costs.
Solution Approach 2:
The patent applies protective measures beforehand by incorporating metal edge protectors and corner protectors during manufacturing. These protective elements prevent damage before it occurs, ensuring the panels maintain their integrity and safety compliance throughout their extended service life, thereby reducing maintenance requirements.
3Ease of operation
If plywood sheeting panels are handled and installed, then the panels can be positioned in the trench, but the handling process breaks corners and causes damage to the panels
Solution Approach 1:
The patent incorporates metal corner protectors and edge protectors during manufacturing that shield vulnerable areas during handling and installation. These protective elements prevent corner breaks and edge damage, allowing workers to handle and position panels without compromising panel integrity.
Solution Approach 2:
The patent uses the flexibility and durability of polyethylene material to create panels that can be handled more safely than rigid plywood. The polyethylene material's inherent flexibility allows for easier handling during installation while maintaining structural integrity, reducing the risk of damage during the positioning process.
4Strength
If plywood panels are used for shoring, then the panels provide necessary structural support, but water and mud cause the panels to gray and delaminate reducing their useful life
Solution Approach 1:
The patent changes the material composition from wood-based plywood to polyethylene, fundamentally altering how the panel interacts with water and moisture. The polyethylene material is inherently resistant to water absorption and degradation, eliminating the graying and delamination processes that plague plywood panels when exposed to trench environments.
Solution Approach 2:
The patent creates a composite system combining polyethylene panels with metal protective components that work together to resist water and mud exposure. The polyethylene material provides base structural support while the metal protectors enhance durability in harsh environmental conditions, creating a system that maintains structural integrity despite water and mud exposure.
Data Source
AI summary
A substantially rectangular trench shoring sheeting panel made primarily of polyethylene includes at least one pair of hand holes. In some embodiments, the sheeting panel includes a plurality of buttons protruding outwardly from one of the sheeting panel's surfaces. As compared to three-quarter inch FinnForm, the polyethylene sheeting panel typically has (i) equivalent or superior structural properties and (ii) a significantly lower useful-life cost.