- CSCD核心中文核心科技核心
- RCCSE(A+)公路运输高质量期刊T1
- Ei CompendexScopusWJCI
- EBSCOPж(AJ)JST
隧道建设（中英文） ›› 2018, Vol. 38 ›› Issue (9): 1520-1528.DOI: 10.3973/j.issn.2096-4498.2018.09.015
LYU Gang1, LIU Jianyou1, *, ZHAO Yong2
吕刚1, 刘建友1,*, 赵勇2
摘要：
In order to guarantee the stability of surrounding rock and support structure of superlarge span tunnel and realize quantification of support structure design, the optimal excavation contour line shape is obtained based on study of influence of initial ground stress on bearing arch of surrounding rock; a new quantitative design method, in which the surrounding rock is regarded as an arch structure, bolts, cables, shotcrete and lining are designed to satisfy the intensity, rigidity and stability of the arch structure, is presented to design the support structure system. The method has been successfully applied to superlarge span tunnel of Badaling Great Wall Station on BeijingZhangjiajie Highspeed Railway; and the applicable results show that the maximum accumulative settlement of crown top of largespan section is only 17.3 mm, and the relative subsidence of crown top is only 0.09%, which can meet safety requirements.
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