中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 1994, Vol. 13 ›› Issue (S1): 83-90.

• • 上一篇    下一篇

衬砌厚度的变异性对隧道结构可靠度的影响

佘健   

  1. 重庆交通学院桥梁工程系
  • 收稿日期:1994-09-16 修回日期:1994-09-16 出版日期:1994-08-05 发布日期:2015-04-15
  • 作者简介:佘健,男,31岁,助教(研究生)

Influence of Variability of Lining Thickness on Reliability of Tunnel Structure

She Jian   

  1. Dept. of Bridge and Structural Engineering
  • Received:1994-09-16 Revised:1994-09-16 Online:1994-08-05 Published:2015-04-15

摘要: 本文运用近景摄影的方法,取得隧道开挖轮廓的实测资料,从而获得衬砌厚度的实态数据;根据“荷载──结构”模式和随机有限元方法,求得结构荷载效应的统计特征,分为承载能力极限状态和正常使用极限状态两种情况编制相应的求解衬砌结构可靠度的程序,求出可靠指标β。

关键词: 近景摄影, 概率统计, 随机有限元, 可靠度

Abstract: In this paper,a close一range photogrammetry method is applied to trace the excavated contour oftunnel,and the real value of lining thickness is obtained.According to the″loading-structure″modeland by random finite element method,the statistical features of loading effect on the structure are ob-tained.Computer programms for forecasting the reliability of tunnel lining are developed respectivelyin the cases of ultimate condition of bearing capacity and of normal service,and as a result,the rellabili-ty index β is determined.

Key words: close-range photogrammetry, statlstics, random finite element, reliability

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