- Tytuł:
- Finite-element analysis of strengthening the subgrade on the basis of boring and mixing technology
- Autorzy:
-
Tiutkin, Oleksii
Neduzha, Larysa
Kalivoda, M. - Powiązania:
- https://bibliotekanauki.pl/articles/2098145.pdf
- Data publikacji:
- 2021
- Wydawca:
- Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
- Tematy:
-
finite-element model
stress state
boring and mixing technology
track superstructure
subgrade
strengthening
model elementów skończonych
stan naprężenia
technologia wiercenia i mieszania
nawierzchnia torowa
podtorze
wzmocnienie - Opis:
- One of the effective techniques to strengthen the subgrade is boring and mixing technology, which is based on the immersion of vertical elements – piles into the subgrade. This method of strengthening significantly affects the stress state of the track superstructure. Two options of the placement of strengthening elements are examined in this paper. To determine the influence of position of strengthening elements on the stress state of the track superstructure, appropriate finite-element models were created. The models fully reflect the geometric and deformation characteristics of a real subgrade, which is strengthened by piles. The calculated stress state of the track superstructure is shown and analyzed in this paper. The main contribution of the paper lies in optimization of the geometric parameters of the technology to reduce the stress state of the "track superstructure–subgrade–soil basement" system. The results show that the location of piles near the rails is more effective than the location of piles near the ballast section.
- Źródło:
-
Transport Problems; 2021, 16, 2; 189--197
1896-0596
2300-861X - Pojawia się w:
- Transport Problems
- Dostawca treści:
- Biblioteka Nauki
Artykuł