Estimation of the surface displacement field due to construction of Cairo Metro Line El Khalafawy - St. Therese

被引：8

作者：

Ezzeldine, OY

机构：

[1] Cairo University, Cairo

[2] El Azar Road Tunnels Project, AC-CBSGEJV, Cairo, 24, El Falaky Street

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 1999年 / 14卷 / 03期

关键词：

tunnels; finite element; settlement;

D O I：

10.1016/S0886-7798(99)00043-7

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

During the design stage of the Line 2 of the Greater Cairo Metro Project, a numerical study was carried out at the University of Alberta, Canada, in order to related the expected ground movement clue to the tunnel construction to the ground control measures imposed during the construction process. A finite element analysis is carried out at the part of the line from Khalafawy to Saint-Therese Station. The study is based on the available documentary related to the ground conditions at the site and to the details of the construction method. The three-dimensional numerical model is constructed to emulate the most probable working conditions taking into account the excavation sequence. A non-linear stress-strain constitutive model is adopted to represent the ground surrounding the tunnel. The results are presented in term of the maximum displacement at the ground surface and the slope of the displacement trough. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：267 / 279

页数：13