摘要
在进行海底隧道的稳定性分析时,只有考虑水的作用才能保证计算的真实性,但流-固耦合计算的速度比较慢,而且计算也比较困难,因此,在计算过程中有时就不考虑流体的作用,而只作一般的弹塑性分析,这就造成了一定的误差。结合厦门海底隧道的稳定计算,考虑有水作用与无水作用两种情况,应用三维快速拉格朗日法进行弹塑性和流-固耦合分析,就开挖后的应力分布、洞周位移、塑性区等结果,对其差异进行了统计对比。
During analysis of subsea tunnel stability,the influence of water should be considered to ensure veracity of simulation.But it is difficult and time consuming to make coupling of fluid-mechanics.So the effect of water is often omitted and only elasto-plastical analysis is done for tunnel,which causes some error.During the process of analyzing stability of Xiamen subsea tunnels,FLAC-3D (fast Lagrangian analysis of continua in 3 dimensions) is used to make elasto-plastics analysis and fluid-structure coupling analysis.The results of stress distribution,displacements and plastic zones of rock mass after excavation are compared with and without water coupled.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第z1期2159-2163,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
隧道工程
厦门海底隧道
弹塑性分析
流-固耦合分析
差异对比
tunneling engineering
Xiamen subsea tunnel
elasto-plastical analysis
coupling of fluid-mechanics
difference contrasting
