Adjusted pile foundation construction for skyscrapers

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Travush, V.I.^1 ; Shulyatev, S.O.^2

Gorporject, 5/5A Niznii susalnii lane, Moscow

105064, Russia^1

NIC Stroitelstvo- NIIOSP Named after N.M. Gersevanov, 6/1, 2nd Institutskaya st., Moscow

109428, Russia^2

关键词: Additional loads;    Deformation criteria;    Different soils;    FEM analysis;    Foundation construction;    Limited equilibrium;    Pile behavior;    Pile foundation design;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012008/pdf
DOI  :  10.1088/1757-899X/456/1/012008

来源: IOP

【 摘 要 】

The article considers the issues of using maximum of pile length by achieving pile limited equilibrium to satisfy all deformation criteria for the skyscrapers. In case the pile limited equilibrium is achieved while constructing, additional loads will transfer to the surrounding piles. The process can be stopped until the necessary number of piles reaches the limited equilibrium. To determine the real pile behavior in the condition of the limited equilibrium 45 static pile tests under the maximum load 120 000 kN applied in skyscrapers constructing process in Russia were summarized. Tests analysis makes it possible to estimate the value of the limited and residual skin friction for different soil conditions. FEM analysis results show the soil and foundation behavior in the process of piles part reaches the ultimate equilibrium. According to the researches result, the approach to the optimal pile foundation design was made. The sphere of its implementation and practical significance were also considered.