Study on Selection of the Length of Reinforced Concrete Segment for Oil and Gas Shield Tunnel with 3D Numerical Analysis

被引:1
|
作者
Wang Xiaofeng [1 ]
Zhou Xiaojun [1 ,2 ]
Hu Hongyun [2 ]
机构
[1] China Petr Design Inst, Dept Architecture & Struct Engn, Southwest Branch, Chengdu 610017, Peoples R China
[2] Southwest Jiaotong Univ, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Peoples R China
基金
中央高校基本科研业务费专项资金资助;
关键词
oil and gas shield tunnel; reinforced concrete segment; 3D numerical analysis; length of segment; internal force; safety factor;
D O I
10.4028/www.scientific.net/AMM.488-489.517
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
3D finite element analysis is utilized to calculate stress and internal forces in three different lengths of reinforced concrete segment for oil and gas shield tunnel subject to water and earth pressure by means of load-structure model. The rational length of concrete segment is determined to be 1.2m long after comparing the calculated stress and internal force in concrete segment with length of 1.0m, 1.2m and 1.5m respectively. Meanwhile, the safety factor is also compared in order to determine the rational length of concrete segment. The analysis shows that segment length for oil and gas shield tunnel with small cross-section should be less than 1.2m so as to facilitate its transportation and erection on construction site.
引用
收藏
页码:517 / +
页数:2
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