Debris Flow Barrier Repair Using Abrasion Prediction and Layered Reinforcement
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Solution Overview
Problem
Existing debris flow prevention structures suffer from both overall structural damage and surface abrasion, necessitating regular maintenance due to inadequate repair methods that lack precision and effectiveness.
Innovation Solution
A method and material system utilizing abrasion depth assessment to formulate reinforcement and repair strategies, incorporating a composite repair material with a matrix enhancement material permeating into the substrate and a surface wear-resistant layer to enhance structural and surface resistance, using polyurea blocks or iron sheets for surface treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional repair methods relying on experience or surface observation are used, then the repair process is simple and quick, but the precision of damage assessment and repair quality are insufficient
Solution Approach 1:
The patent applies preliminary action by introducing abrasion depth prediction before actual repair work. The method predicts abrasion depth based on debris flow parameters (particle size, velocity, duration) and structural density, allowing planners to assess damage precision in advance and prepare appropriate repair strategies without complex on-site detection equipment.
Solution Approach 2:
The patent replaces mechanical/physical detection methods with a computational prediction model. Instead of using complex measurement devices to assess damage, the system uses mathematical models that calculate abrasion depth from debris flow parameters and material properties, substituting physical measurement systems with computational ones.
2Strength
If only surface repair is performed, then the repair cost and time are reduced, but the overall structural strength and impact resistance are not restored
Solution Approach 1:
The patent applies segmentation by dividing the repair system into two distinct functional layers: matrix enhancement material for overall structural strength and surface wear-resistant layer for surface protection. This segmentation allows each layer to be optimized for its specific function while maintaining efficient construction through standardized application procedures.
Solution Approach 2:
The patent uses composite materials by combining matrix enhancement material (containing cement, sand, gravel, and steel fibers) with surface wear-resistant layer materials (polyurea or iron sheets). This composite approach restores overall structural strength while providing enhanced surface abrasion resistance, addressing both structural and surface requirements in an integrated repair solution.
3Reliability
If comprehensive repair addressing both structural and surface damage is implemented, then the repair quality and durability are improved, but the material consumption and construction complexity increase
Solution Approach 1:
The patent applies local quality by providing different material properties at different locations: matrix enhancement material is applied to the substrate for structural reinforcement, while surface wear-resistant layer is applied specifically to the exposed surface for abrasion protection. This localized differentiation ensures materials are used where most needed, improving durability without excessive material consumption.
Solution Approach 2:
The patent uses parameter changes by adjusting the thickness and composition parameters of repair materials based on the predicted abrasion depth. The method calculates required material parameters (such as layer thickness, steel fiber content, and material strength) based on debris flow characteristics, allowing optimized material consumption that provides sufficient durability without over-engineering.
4Measurement precision
If abrasion depth prediction based on debris flow parameters is used, then the repair strategy precision is improved, but the measurement and calculation complexity increase
Solution Approach 1:
The patent applies preliminary action by measuring debris flow parameters (particle size distribution, flow velocity, duration) during the debris flow event or using historical data before repair work begins. This preliminary measurement allows the abrasion depth prediction to be calculated in advance, providing precise repair strategy guidance without requiring complex measurements during the actual repair construction phase.
Data Source
AI summary
A method for reinforcing and repairing a debris flow prevention structure is provided. A surface abrasion depth of the debris flow prevention structure is evaluated to formulate a reinforcement and repair strategy. During implementation of a repair project, a to-be-constructed area is cleaned according to the reinforcement and repair strategy, and a matrix enhancement material is poured into the to-be-constructed area so that the matrix enhancement material permeates into a substrate of the debris flow prevention structure for enhancing an ability to resist overall structural damage. A surface wear-resistant layer is arranged on a surface of the substrate to enhance an ability to resist surface damage. During construction, a plurality of polyurea blocks is fixed on the surface of the substrate in a bionic arrangement to form a bionic structure. A repair material and abrasion depth prediction method for the debris flow prevention structure are also provided.