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Structural monitoring of metro infrastructure during shield tunneling construction.

Structural monitoring of metro infrastructure during shield tunneling construction.

Authors :
Ran L
Ye XW
Ming G
Dong XB
Source :
TheScientificWorldJournal [ScientificWorldJournal] 2014; Vol. 2014, pp. 784690. Date of Electronic Publication: 2014 Jun 15.
Publication Year :
2014

Abstract

Shield tunneling construction of metro infrastructure will continuously disturb the soils. The ground surface will be subjected to uplift or subsidence due to the deep excavation and the extrusion and consolidation of the soils. Implementation of the simultaneous monitoring with the shield tunnel construction will provide an effective reference in controlling the shield driving, while how to design and implement a safe, economic, and effective structural monitoring system for metro infrastructure is of great importance and necessity. This paper presents the general architecture of the shield construction of metro tunnels as well as the procedure of the artificial ground freezing construction of the metro-tunnel cross-passages. The design principles for metro infrastructure monitoring of the shield tunnel intervals in the Hangzhou Metro Line 1 are introduced. The detailed monitoring items and the specified alarming indices for construction monitoring of the shield tunneling are addressed, and the measured settlement variations at different monitoring locations are also presented.

Details

Language :
English
ISSN :
1537-744X
Volume :
2014
Database :
MEDLINE
Journal :
TheScientificWorldJournal
Publication Type :
Academic Journal
Accession number :
25032238
Full Text :
https://doi.org/10.1155/2014/784690