Research on construction time of secondary lining of large section loess tunnel for high-speed railway

被引：0

作者：

Lu Jun-fu ^{[1
]}

Wang Ming-nian ^{[2
]}

Jia Yuan-yuan ^{[3
]}

Yu Yu ^{[4
]}

Tan Zhong-sheng ^{[5
]}

机构：

[1] Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China

[2] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Sichuan, Peoples R China

[3] Xihua Univ, Sch Architecture & Civil Engn, Chengdu 610039, Sichuan, Peoples R China

[4] China Railway Eryuan Engn Grp Co Ltd, Chengdu 610031, Sichuan, Peoples R China

[5] Beijing Jiaotong Univ, Sch Civil Engn & Architecture, Beijing 100044, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2011年 / 32卷 / 03期

关键词：

tunnel engineering; large section loess tunnel; secondary lining; construction time; stability deformation rate;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The construction time of secondary lining of tunnel is a very controversial issue in tunneling engineering. Associating with the large-section loess tunnel construction of Zhengzhou-Xi' an high-speed passenger railway, the determinant indexes about the construction time of secondary lining are put forward, which are basic stability deformation rate and basic stability time and distance. The solving method for basic stability deformation rate was carried out with regression analysis and numerical analysis. In this case, we take the Hejiazhuang tunnel as our experimental section, the construction time of secondary lining of large section loess tunnel is studied. The study results indicate: the value of vertical deformation rate of tunnel crown less than 0.55mm/d and the value of horizontal absolute convergence rate of tunnel sidewall less than 0.17mm/d; we can construct the secondary lining. In conclusion, these results are instructive for the design and construction on similar tunneling engineering.

引用

页码：843 / 848

页数：6