Subsidence trough asymmetry calculations in twin tube TBM tunnelling
1
Ph.D., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, Poland
2
Prof., DSc., PhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, Poland
Submission date: 2021-03-16
Final revision date: 2021-04-09
Acceptance date: 2021-04-09
Publication date: 2021-06-24
Archives of Civil Engineering 2021;67(2):675-689
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ABSTRACT
The impact of TBM EPB tunnelling was assessed with respect to the observed values of settlements as the results of extensive monitoring system of the subsoil and ground surface. The aim of the analysis using empirical methods was to determine the real scale of impact and to determine the formula for the asymmetric subsidence trough observed during the passage of two TBMs in quaternary cohesive soils. Based on field measurements, authors propose the polynomial formulation for the depth and shape of the asymmetric subsidence trough prediction over twin tube TBM tunnel.
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| eISSN: | 2300-3103 |
| ISSN: | 1230-2945 |
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