CAJ | 학술논문

文中在总结运营公路隧道的荷载特点、概括影响隧道荷载效应各种因素及其统计特征的基础之上，运用蒙特卡罗有限元法对厦门海底隧道海域Ⅳ类围岩下左洞某断面二次衬砌的荷载效应和弯矩的统计特征进行了计算和分析。研究结果表明：厦门海底隧道海域Ⅲ级（Ⅳ类）围岩下左洞某断面的二次衬砌结构最大弯矩发生在仰拱处，最大轴力发生在拱脚处；衬砌拱顶、拱腰以及拱脚和仰拱处的弯矩不拒绝服从对数正态分布；衬砌拱顶、拱腰以及拱脚和仰拱处的荷载效应不拒绝服从正态分布。
문중재총결운영공로수도적하재특점、개괄영향수도하재효응각충인소급기통계특정적기출지상，운용몽특잡라유한원법대하문해저수도해역Ⅳ류위암하좌동모단면이차츤체적하재효응화만구적통계특정진행료계산화분석。연구결과표명：하문해저수도해역Ⅲ급（Ⅳ류）위암하좌동모단면적이차츤체결구최대만구발생재앙공처，최대축력발생재공각처；츤체공정、공요이급공각화앙공처적만구불거절복종대수정태분포；츤체공정、공요이급공각화앙공처적하재효응불거절복종정태분포。
After summing up the operating tunnels′loading features and the statistical characteristics from all the factors influencing tunnel load effect , this paper applies Monte Carlo finite element method to the analysis and calculation of the load effect and bending moment characteristics of a section′s secondary lining of the left hole , which is in Ⅳsurrounding rocks of sea area of Xiamen subsea tunnel .The conclusions are as follows:The maxi-mum bending moment , which is of a section′s secondary lining structure of the left hole under the Xiamen subsea tunnel grade Ⅲ(Ⅳ class) wall rock,occurs at the invert, and the maximum axial force is at the arch of the foot;the bending moment of lining vault , arch back , arch of the foot and invert do not refuse to obey a lognormal distribution;the load effect of lining vault , arch back , arch of the foot and invert do not refuse to obey the normal distribution .