一种用于AFRP提升盾构管片韧性的数值模拟方法及装置
By constructing AFRP solid elements and contact interface elements, and combining experimental data and adaptive optimization algorithms, the slip-peeling parameters were calibrated, solving the problem of inaccurate identification of the interface boundary of AFRP-reinforced shield tunnel segments in the existing technology, and realizing high-precision simulation of shield tunnel segment toughness assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU MARITIME INST
- Filing Date
- 2025-12-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot accurately capture the interface stage boundaries of aramid fiber reinforced polymer (AFRP) reinforced shield tunnel segments, resulting in insufficient overall accuracy of numerical simulations and affecting the toughness assessment of shield tunnel segments.
By constructing AFRP solid elements and contact interface elements, and combining single shear test and tensile test data, a four-segment adaptive objective function and a multi-stage boundary-guided adaptive simulated annealing optimization algorithm are used to calibrate the slip-stripping parameters, thereby simulating the bond-slip-stripping behavior of the AFRP-concrete interface.
It significantly improves the fitting accuracy and model reliability of the interface damage evolution process of shield tunnel segments, ensures the accuracy of stage boundary identification, and enhances the accuracy of toughness assessment of shield tunnel segments.
Smart Images
Figure CN121809247B_ABST