Verification of Numerical Modelling of Tunnel-Shaft Connection under Static Loading | ||||
| Engineering Research Journal (Shoubra) | ||||
| Volume 52, Issue 1, January 2023, Page 101-108 PDF (1.69 MB) | ||||
| Document Type: Research articles | ||||
| DOI: 10.21608/erjsh.2022.163921.1089 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mahmoud Salah Nafi  1; Naser Mosleh Saleh2; Nesreen Elsayed Elfaris3; Waleed Ahmed Dawood4
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| 1Geotechnical Engineering, Shoubra Faculty of Engineering, Cairo, Egypt | ||||
| 2Professor in Geotechnical Engineering, Shoubra Faculty of Engineering, Benha University, Cairo, Egypt | ||||
| 3Structural Manager, National Authority for Tunnels, Cairo, Egypt | ||||
| 4Geotechnical engineering department of civil engineering, Shoubra faculty, Benha university, Cairo, Egypt | ||||
| Abstract | ||||
| Needless to say, tunnels and shafts are versatile structures that are used for solving many problems all over the world. Tunnels are used as horizontal tubes, transferring from point to point beneath earth, and shafts are vertical tubes, which used as emergency structures, and for other usages. In this paper, a verification was done for finite element model of the connection between tunnel and shaft under static loading. This connection is a 3D problem which can be a weak point, and must be cared for in both design and construction processes. Tunnel-shaft connection 17A between Kolleyet El-Banat and Al-Ahram stations, from Greater Cairo Metro Line 3, Phase 2, was used as the case study of this paper. Full details of FEM model inputs were introduced and stages of construction were mentioned. Results from the model were verified using settlement monitoring results. After that, settlement results from model were also discussed and some graphs were provided representing them. | ||||
| Keywords | ||||
| Tunnel; Shaft; Connection; Greater Cairo Metro; FEM | ||||
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