Prediction of Ground Settlement Induced by Slurry Shield Tunnelling in Granular Soils
Author(s): |
Mo'men Ayasrah
Hongsheng Qiu Xiedong Zhang Mohammad Daddow |
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Medium: | journal article |
Language(s): | English |
Published in: | Civil Engineering Journal, 30 November 2020, n. 12, v. 6 |
Page(s): | 2273-2289 |
DOI: | 10.28991/cej-2020-03091617 |
Abstract: |
Underground structures play an important role in achieving the requirements of rapid urban development such as tunnels, parking garages, facilities, etc. To achieve what is needed, new transportation methods have been proposed to solve traffic congestion problems by using of high-speed railway and subway tunnels. One of the issues in urban spaces due to tunnel excavation is considerable surface settlements that also induce problems for surface structures. There are a variety of published relationships concerned with field measurements and theoretical approaches to evaluating the amount of the maximum surface settlement value due to tunneling. This paper studies the ground surface settlement caused by the Greater Cairo Metro – Line 3 - Phase-1. This project was constructed by a slurry shield Tunnel Boring Machine (TBM). Therefore, this work consists of two parts. The first part presents the details of the project and monitoring results field and laboratory geotechnical investigations in order to determine the soil properties. The second part is to the comparison between the field measurements and theoretical approaches for surface settlement due to tunneling construction. At the end of the works, the results show that the more convenient methods which approach the field measurements, and the major transverse settlement occurs within the area about 2.6 times the diameter of the tunnel excavation. |
Copyright: | © 2020 Mo''men Ayasrah, Hongsheng Qiu, Xiedong Zhang, Mohammad Daddow |
License: | This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met. |
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10526236 - Published on:
09/12/2020 - Last updated on:
02/06/2021