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    趙樂(lè)之¹，劉曉峰²，喬  寧²
    (1 北京市市政工程設(shè)計(jì)研究總院，北京100082; 2 煙建集團(tuán)第六建筑安裝分公司，煙臺(tái)264003)

[摘要] 頭道穴隧道是懷豐公路的重點(diǎn)工程。針對(duì)其周圍地質(zhì)條件復(fù)雜而造成明洞段偏壓的情況，考慮到工程設(shè)置偏壓擋土墻等施工特點(diǎn)，采用荷載結(jié)構(gòu)法對(duì)該偏壓明洞襯砌結(jié)構(gòu)進(jìn)行了有限元分析計(jì)算，分析了襯砌結(jié)構(gòu)的位移與應(yīng)力情況，得出能夠保證隧道結(jié)構(gòu)安全的設(shè)計(jì)方案，并總結(jié)論述公路偏壓隧道病害防治措施。
[關(guān)鍵詞] 偏壓隧道；荷載結(jié)構(gòu)法；襯砌結(jié)構(gòu)
 

    Numerical analysis on the design of unsymmetrically loaded tunnel
    Zhao Lezhi¹, Liu Xiaofeng², Qiao Ning²
    (1 Beijing General Municipal Engineering Design& Research Institute, Beijing 100082, China; 2 Yanjian Group Sixth Construction and Installation Branch Company, Yantai 264003, China)

Abstract: Tunnel named Tou Dao Xue is a key project of Huaifeng highway. According to unsymmetrical load caused by around geological conditions in the open cut tunnel, considering unsymmetrically loaded retaining wall set up in the project, the finite element analysis on the lining structure is carried out by means of load structure method. The displacement and stress oflining structure are analyzed so that a design scheme ensuring safe tunnel structure is obtained. In addition, disease control measures of unsymmetrically loaded highway tunnel are concluded.
Keywords: unsymmetrically loaded tunnel; load structure method; lining structure