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Interaction Between Tunnel Surrounding Rock and Early Support During Process of Tunnel Construction
Author(s): 
Pages: 232-237
Year: Issue:  5
Journal: Highway

Abstract: 对隧道围岩与初衬之间的相互作用进行了研究,并对二次衬砌前的围岩和初衬中应力与位移及其释放进行了计算分析.首先利用线性黏弹性理论,导出了隧道开挖后围岩和初衬中的应力与位移;然后选取Maxwell和Poyting-Thomson三参数固体流变模型模拟围岩,研究了隧道围岩与初衬之间的相互作用;最后结合公路隧道施工,计算了二次衬砌前的围岩应力和位移及其释放率、围岩与初衬间相互作用、释放荷载分担系数,并依此...
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