Geotechnical and construction considerations of pile foundations in problematical soils

摘要

Just as every civilization in the history has originated from the riverside, so is the city of Astana -new capital of Kazakhstan has been developed around the Ishim River. As a result there are many bridges across the river. Also, high rise buildings, such Palace of Peace, Abu-Dhabi Plaza, New Railway Station, Expo-2017 constructions sites and many other structures are founded in problematical soil ground of Astana. These unique buildings are supported by deep drawing and boring pile foundations. For designing of piling foundations on difficult soils, is important to have the investigations of behaviour of piles by using dynamic, static and O-cell. This paper includes a new results of several piling tests. These investigations of interaction of piles with soil ground are important for understanding the mechanism of working of different piles on soft and hard soils of Astana. Also, this paper introduced the experiences of piling constructions in winter season on freezing ground. The last part of paper includes recommendations and conclusion with proposing of methodologies for obtaining the bearing capacity and settlements of driving and boring piles on problematical soil ground of Astana.