摘要
通过简单的ANSYS断裂力学模型,计算隧道二衬裂缝在不同灌浆压力作用下的缝端应力强度因子,并依据裂缝扩展准则的判据,分析不同灌浆长度时的允许灌浆压力,给压力灌浆修补隧道二次衬砌裂缝方面提供科学、合理的理论支撑。
Calculation is made on the stress intensity factors of tunnel secondary lining cracks under different grouting pressure by means of a simple ANSYS fracture model. And then analysis is made on the allowable grouting pressure of different filling length through the criterion of crack propagation, which provides scientific and theoretical support for repairing tunnel secondary lining cracks by pressure grouting.
出处
《交通科技与经济》
2013年第3期22-25,共4页
Technology & Economy in Areas of Communications
关键词
断裂力学模型
应力强度因子
裂缝
允许灌浆压力
fracture mechanics model
stress intensity factor
crack
allowable grouting pressure
