Numerical analysis of interaction between a model tunnel lining and non-cohesive soil
The paper presents an analysis and assessment of an interaction between a model tunnel lining and surrounding non-cohesive soil. The analysis was conducted with numerical simulations using the author’s program based on an algorithm of the discrete element method. Previously calibrated numerical mode...
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| Format: | Article |
| Language: | English |
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Military University of Technology, Warsaw
2019-03-01
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| Series: | Biuletyn Wojskowej Akademii Technicznej |
| Subjects: | |
| Online Access: | http://biuletynwat.pl/gicid/01.3001.0013.1479 |
| _version_ | 1797719198899634176 |
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| author | Paweł Szklennik |
| author_facet | Paweł Szklennik |
| author_sort | Paweł Szklennik |
| collection | DOAJ |
| description | The paper presents an analysis and assessment of an interaction between a model tunnel lining and surrounding non-cohesive soil. The analysis was conducted with numerical simulations using the author’s program based on an algorithm of the discrete element method. Previously calibrated numerical model was used in the calculations. Calibration was based on comparison of the construction deformations observed in the laboratory tests and during the simulation. Numerous simulations, performed in the calibrated numerical model, included calculations for a flexible and rigid construction of the lining. The tunnel construction loads, stress distribution in the surrounding soil, and soil particles’ displacements were investigated. Analyses were conducted in two variants — when only soil weight is acting on the tunnel construction and when the external load transmitted from the surface is present. Also two variants of the backfill height were investigated — they were equal to one and two diameters of the tunnel. The values of tunnel loads, which were numerically calculated, were compared with the corresponding values, calculated by the Hewett’s method. It is shown that distribution of tunnel loads and stresses in the surrounding soil is strongly linked with the tunnel construction stiffness, thus it can be significantly different from standard load situations for such constructions.
Keywords: civil engineering, discrete element method, tunnel lining |
| first_indexed | 2024-03-12T09:02:18Z |
| format | Article |
| id | doaj.art-02f03b18242847318942a2e0a6f16707 |
| institution | Directory Open Access Journal |
| issn | 1234-5865 |
| language | English |
| last_indexed | 2024-03-12T09:02:18Z |
| publishDate | 2019-03-01 |
| publisher | Military University of Technology, Warsaw |
| record_format | Article |
| series | Biuletyn Wojskowej Akademii Technicznej |
| spelling | doaj.art-02f03b18242847318942a2e0a6f167072023-09-02T15:34:08ZengMilitary University of Technology, WarsawBiuletyn Wojskowej Akademii Technicznej1234-58652019-03-0168117519510.5604/01.3001.0013.147901.3001.0013.1479Numerical analysis of interaction between a model tunnel lining and non-cohesive soilPaweł Szklennik0Wojskowa Akademia Techniczna, Wydział Inżynierii Lądowej i Geodezji, ul. gen. W. Urbanowicza 2, 00-908 WarszawaThe paper presents an analysis and assessment of an interaction between a model tunnel lining and surrounding non-cohesive soil. The analysis was conducted with numerical simulations using the author’s program based on an algorithm of the discrete element method. Previously calibrated numerical model was used in the calculations. Calibration was based on comparison of the construction deformations observed in the laboratory tests and during the simulation. Numerous simulations, performed in the calibrated numerical model, included calculations for a flexible and rigid construction of the lining. The tunnel construction loads, stress distribution in the surrounding soil, and soil particles’ displacements were investigated. Analyses were conducted in two variants — when only soil weight is acting on the tunnel construction and when the external load transmitted from the surface is present. Also two variants of the backfill height were investigated — they were equal to one and two diameters of the tunnel. The values of tunnel loads, which were numerically calculated, were compared with the corresponding values, calculated by the Hewett’s method. It is shown that distribution of tunnel loads and stresses in the surrounding soil is strongly linked with the tunnel construction stiffness, thus it can be significantly different from standard load situations for such constructions. Keywords: civil engineering, discrete element method, tunnel lininghttp://biuletynwat.pl/gicid/01.3001.0013.1479civil engineeringdiscrete element methodtunnel lining |
| spellingShingle | Paweł Szklennik Numerical analysis of interaction between a model tunnel lining and non-cohesive soil Biuletyn Wojskowej Akademii Technicznej civil engineering discrete element method tunnel lining |
| title | Numerical analysis of interaction between a model tunnel lining and non-cohesive soil |
| title_full | Numerical analysis of interaction between a model tunnel lining and non-cohesive soil |
| title_fullStr | Numerical analysis of interaction between a model tunnel lining and non-cohesive soil |
| title_full_unstemmed | Numerical analysis of interaction between a model tunnel lining and non-cohesive soil |
| title_short | Numerical analysis of interaction between a model tunnel lining and non-cohesive soil |
| title_sort | numerical analysis of interaction between a model tunnel lining and non cohesive soil |
| topic | civil engineering discrete element method tunnel lining |
| url | http://biuletynwat.pl/gicid/01.3001.0013.1479 |
| work_keys_str_mv | AT pawełszklennik numericalanalysisofinteractionbetweenamodeltunnelliningandnoncohesivesoil |