- Tytuł:
- Experimental and theoretical research on large-diameter rock-socketed pile embedded depth
- Autorzy:
-
Li, Yanfeng
Zhao, Jihe
Xiong, Ying
Wang, Qinghe - Powiązania:
- https://bibliotekanauki.pl/articles/1852536.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
badanie obciążeniowe
obciążenie poziome
model elementów skończonych
przenoszenie obciążenia
nośność graniczna
głębokość
gniazdo skalne
pal fundamentowy
pal wielkośrednicowy
horizontal load
loading test
finite element model
load transfer
ultimate bearing capacity
rock socket
depth
foundation pile
large diameter pile - Opis:
- A theoretical formula for large-diameter rock-socket depth is developed to support pail embedding in a large bridge pile foundation project. There is a horizontal additional stress concentration at the place where the soil around the rock-socketed pile meets the soil layer under the horizontal load. When the rock-socketed tip stress and bending moment of the pile are relatively small, the pile shows favourable embedment effect and the pile foundation can be considered safe. The function curve of soil resistance around the pile under the action of horizontal force was obtained by finite element analysis. The force characteristics reveal the depth of the largediameter rock-socketed pile under the horizontal load. As the rock-socketed pile rotates under the action of horizontal force, the rock mass resistance around the pile changes according to the cosine. The distribution of pileside soil resistance is proportional to the displacement and distributed according to the sine. A comprehensive correction coefficient of pile shaft resistance β is introduced to deduce the theoretical formula of the depth hr of the large-diameter rock-socketed pile embedded in the bedrock. It is verified through both experiments and numerical analysis.
- Źródło:
-
Archives of Civil Engineering; 2021, 67, 2; 537-550
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł