Analysis of Interaction inside the pile group subjected to arbitrary horizontal loading
Апстракт
The analysis of pile groups subjected to horizontal loading in one of two orthogonal directions is
a common problem in geotechnical engineering. However, the above analysis should sometimes
be extended with the additional cases of horizontal loading, in arbitrary direction. Although the
full scale experiments can provide the best insight into the above problem, they are expensive
and therefore not feasible solution. Instead, numerical (i.e. fi nite element) analysis usually
remains the ultimate tool for large scope studies.
The main objective of this research is the improvement of the analysis methodology of pile
group for the case of arbitrary static horizontal loading. Its influence is investigated numerically
to check for the existence of the "critical" pile group con figurations and soil conditions, that
may lead to the failure of the foundation structure and superstructure itself.
To reach the above objective, apriori sensitivity analysis of the considered problem and
i...dentifi cation of the main problem parameters are conducted in the first phase. After that, series
of complex 3D numerical models for laterally loaded pile group analysis have been generated
using PLAXIS 3D. Model validation is done by the back-calculation of available experimental
results. Parametric study of pile groups with various con figurations under arbitrary horizontal
loading is performed, with an emphasis on pile force distribution, bending response and pile
group efficiency.
Modelling and simulation processes and the optimization of the calculation time were improved
using the originally developed codes in Python. The use of multiple computers was
allowed by using the author's scripts developed within the thesis. The above research resulted
in thousands of numerical simulations, whose findings provided the improved design methodology
of pile groups under arbitrary static horizontal loading.
Кључне речи:
pile group / horizontal static loading / PLAXIS 3D / Hardening Soil model / PythonИзвор:
2020Финансирање / пројекти:
- SFB 837 - Interaction Modeling in Mechanized Tunneling
- SEEFORM
- Истраживање утицаја вибрација од саобраћаја на зграде и људе у циљу одрживог развоја градова (RS-MESTD-Technological Development (TD or TR)-36046)