Open AccessIdentification of numerical model parameters of tunnel lining in non-cohesive soil
Author(s) -
Paweł Szklennik
Publication year - 2018
Publication title -
biuletyn wojskowej akademii technicznej
Language(s) - English
Resource type - Journals
ISSN - 1234-5865
DOI - 10.5604/01.3001.0012.8484
Subject(s) - geotechnical engineering , discrete element method , displacement (psychology) , engineering , structural engineering , identification (biology) , laboratory test , mechanics , physics , psychology , botany , psychotherapist , biology , biochemical engineering
The paper discusses identification of numeric model parameters of tunnel lining in a soilmedium according to the discrete element method. An author’s program based on the discrete elementmethod was used. Laboratory tests were conducted to determine the computer model parametersdefining the lining and the soil medium. The numerical model was calibrated by comparing the liningdeformations occurring in the laboratory test and in the numeric simulation. Tunnel lining displacementduring laboratory tests was determined using digital photography.Keywords: civil engineering, discrete element method, cylindrical tunnel lining