浅埋偏压黄土连拱隧道施工方案有限元数值模拟  

Finite Element Numerical Simulation of Shallow Buried Biasing Loess Multiple Arch Tunnel Construction Plan

作　　者：蒋树屏[1] 刘元雪[1] 赵尚毅[2] 聂承凯 帖智武 赵虎生 黄仰收 

机构地区：[1]重庆交通科研设计院,重庆400067 [2]后勤工程学院建筑工程系,重庆400041 [3]山西省交通规划勘察设计院,太原030012

出　　处：《公路交通技术》2006年第1期95-99,116,共6页Technology of Highway and Transport

基　　金：国家自然科学基金(50309017);重庆市科委资助

摘　　要：双连拱公路隧道在平面线路、洞口位置的选择上较分离式隧道自由度大,在一些中短隧道建设中,往往采用双连拱隧道结构形式。结合山西省离石黄土连拱公路隧道,进行黄土连拱隧道的关键施工力学问题研究:正洞上下台阶法与侧壁导洞法施工方案比较研究;先左洞(靠山一侧)施工方案和先右洞施工方案的对比。计算结果表明对于偏压黄土连拱隧道应采用先开挖靠山一侧的侧壁导洞法进行施工。Dual multiple arch highway tunnel, compared with separated tunnel, has more flexibility in path and opening position selection. In middle and short tunnel construction, dual multiple arch tunnels are often adopted. Combining with Shanxi Lishi Loess multiple arch highway tunnel construction, the key construction mechanical researches on loess multiple arch tunnels are carried out, including comparison research on construction plans such as main tunnel ladder method and side wall pilot method, comparison of construction plan of left tunnel （the side against mountain） and right tunnel first. The results show for biasing loess multiple arch tunnels, side wall pilot method on the side against mountain shall be constructed first.

关 键 词：隧道 连拱隧道 有限元 施工力学 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]