@Article{cmes.2022.020386,
AUTHOR = {Shengjun Deng, Yang He, Xiaonan Gong, Jiajin Zhou, Xiangdong Hu},
TITLE = {A Hybrid Regional Model for Predicting Ground Deformation Induced by Large-Section Tunnel Excavation},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {134},
YEAR = {2023},
NUMBER = {1},
PAGES = {495--516},
URL = {http://www.techscience.com/CMES/v134n1/49438},
ISSN = {1526-1506},
ABSTRACT = {Due to the large number of finite element mesh generated, it is difficult to use full-scale model to simulate largesection underground engineering, especially considering the coupling effect. A regional model is attempted to
achieve this simulation. A variable boundary condition method for hybrid regional model is proposed to realize
the numerical simulation of large-section tunnel construction. Accordingly, the balance of initial ground stress
under asymmetric boundary conditions achieves by applying boundary conditions step by step with secondary
development of Dynaflow scripts, which is the key issue of variable boundary condition method implementation. In
this paper, Gongbei tunnel based on hybrid regional model involving multi-field coupling is simulated. Meanwhile,
the variable boundary condition method for regional model is verified against model initialization and the
ground deformation due to tunnel excavation is predicted via the proposed hybrid regional model. Compared
with the monitoring data of actual engineering, the results indicated that the hybrid regional model has a good
prediction effect.},
DOI = {10.32604/cmes.2022.020386}
}