基于有限元模拟的土工格室加筋基层力学响应及工程应用研究

Research on Mechanical Response and Engineering Application of Geocell Reinforced Base Based on Finite Element Simulation

本研究利用abaqus有限元模拟不同因素对基层承载能力影响,通过应力应变云图,竖向沉降量、回弹模量、塑性变形量随荷载变化曲线等分析不同基层承载能力差异,验证承载板试验结论。同时对格室加固材料进行研究,对比填料为单粒级碎石、沥青面层–半刚性基层混合铣刨料、沥青面层铣刨料及乳化沥青冷再生混合料对结构层加固效果分析,为开展工程试验提供指南和有理论支持。开展试验路验证承载板试验结论正确性并跟踪观测路面服役效果,对机械化施工方式进行改进与完善。

In this study, abaqus was used to simulate the influence of different factors on the load-bearing capacity of the base. The difference in load-bearing capacity of the different bases was analyzed through a stress-strain cloud map, vertical settlement, resilience modulus and plastic deformation curve with load, etc., and the conclusion of the load-bearing plate test was verified. At the same time, the reinforcement materials of the cell were studied, and the reinforcement effect of the single grain gravel, asphalt surfacing and semi-rigid base mixed milling material, asphalt surfacing milling material and emulsified asphalt cold recycled mixture were compared to provide guidance and theoretical support for engineering tests. To carry out trial road verification of load-bearing board test conclusions and monitor the pavement’s performance, improvements and refinements to mechanized construction methods will be made.