Basalt Fiber Anchor Cable Tension Test System
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Solution Overview
Problem
Traditional steel anchor cables corrode in hydro-fluctuation belts of reservoirs due to drying-wetting cycles, and existing methods lack effective monitoring and testing for anchoring capacity, posing safety risks to canyon bank slopes. Current research focuses on interface mechanical features of basalt fiber reinforced polymers (BFRPs) with concrete, but practical field applications for large-tonnage basalt fiber anchoring structures are still developing.
Innovation Solution
An integral tension test system for large-tonnage basalt fiber anchor cables, comprising basalt fiber anchoring bars with BFRP bundles, steel strands, and sensing optical cables, along with a data acquisition module, a vibration table, and environmental control systems for simulating reservoir conditions, allowing for comprehensive testing of anchoring capacity under varying temperature, humidity, and seismic loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional steel anchor cables are used for anchoring in reinforcement of the hydro-fluctuation belt, then the anchoring structure can be constructed, but the steel anchor cables are prone to corrosion due to drying-wetting cycles
Solution Approach 1:
The patent uses basalt fiber reinforced polymer (BFRP) composite materials to replace traditional steel anchor cables. The BFRP consists of basalt fibers embedded in a polymer matrix, providing both strength and corrosion resistance. This composite material structure eliminates the corrosion problem while maintaining the required mechanical properties for anchoring in hydro-fluctuation environments.
2Measurement precision
If large-tonnage basalt fiber anchor cables are tested in a laboratory, then the anchoring capacity can be evaluated, but a specialized integral tension test system is required which increases device complexity
Solution Approach 1:
The patent combines multiple testing functions into an integrated test system. The system merges the tension testing mechanism, environmental simulation chambers (for humidity and temperature control), vibration excitation devices, and data acquisition systems into a unified platform. This allows simultaneous evaluation of anchoring capacity, environmental durability, and dynamic response characteristics.
Solution Approach 2:
The test system is designed with multi-functionality to handle various testing requirements. It can perform static tension tests, dynamic vibration tests, and environmental aging tests using the same basic infrastructure. The reaction frame and loading mechanisms can accommodate different test configurations, reducing the need for separate specialized equipment for each test type.
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 effectively simulates real-world conditions to measure the maximum anchoring force and ultimate load of basalt fiber anchor cables, providing accurate stress and vibration monitoring, thus reliably evaluating anchoring capacity and enabling creep tests, with high automation and comprehensive testing capabilities.
Implementation Method 1
a grating array temperature sensing optical cable, a grating array stress sensing optical cable and a grating array vibration sensing optical cable are bonded in each of the BFRPs
Implementation Method 2
a vibration table and reaction frame arranged on the vibration table, where the reaction frame is of a closed structure
Data Source
AI summary
An integral tension test system for a large-tonnage basalt fiber anchor cable includes: a plurality of basalt fiber anchoring bars each comprising a basalt fiber reinforced plastic (BFRP) bundle, a steel strand, a first and a second steel casing pipes, the BFRP bundle including a plurality of BFRPs, and a grating array temperature, stress and vibration sensing optical cables bonded in the BFRP; a vibration table and a reaction frame arranged thereon, wherein the first steel casing pipe of the basalt fiber anchoring bar is located in the reaction frame, the steel strand penetrates one end of the reaction frame to be connected to a center hole jack, and the second steel casing pipe of each basalt fiber anchor cable is located outside the reaction frame to be anchored; and a data acquisition module connected to all of the grating array temperature, stress and vibration sensing optical cables.