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Numerical simulation of tunnel excavation considering fluid solid coupling
Author(s): JI You-jun, LIU Jian-jun, CHENG Lin-song
Pages: 1229-
1233
Year: 2011
Issue:
4
Journal: Rock and Soil Mechanics
Abstract: 根据隧道工程施工实际情况和地下水渗流的基本规律,以及弹塑性力学理论,建立了在应力场和渗流场耦合作用下隧道开挖数学模型,借助Comsol模拟了隧道开挖过程中围岩应力场及渗流场的变化规律.研究结果表明:在原岩开挖时,隧道围岩变形及地面沉降大,不利于周围建筑的安全,隧道内积水,施工无法进行;进行灌浆处理后,围岩变形小,地面沉降得到控制,有利于施工及周围建筑的安全.
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