Impact dipping pyramidal-prismatic piles and their resistance to pressure and horizontal load
Bekbasarov I. Shanshabayev N.
13 July 2021Budapest University of Technology and Economics
Periodica Polytechnica Civil Engineering
2021#65Issue 3909 - 917 pp.
The results of experiments carried out in the field with the use of large-scale models of reinforced concrete driven pyramidal-prismatic piles with different lengths of the pyramidal part are presented. The impact capacity of piles were evaluated of their bearing capacity to the action of indentation and horizontal static loads. It has been established that the driving of pyramidal-prismatic piles is accompanied by both large (by 1.10–1.60 times) and lower (by 8.0–37.0 %) energy consumption for their driving in comparison with conventional prismatic and pyramidal piles. It was also revealed that under the action of a vertical indentation load, the bearing capacity of the pyramidal-prismatic piles is 1.09–1.48 times, and under the action of a horizontal static load, it is 1.17–1.80 times higher than that of a prismatic pile. It has been established that with an increase in the length of the pyramidal part of the test piles, there is an increase in their bearing capacity by 1.12–1.34 times. Formulas are proposed for determining the bearing capacity of pyramidal-prismatic piles. The research results serve as the basis for the development of recommendations for the calculation and design of pyramidal-prismatic piles.
Bearing capacity , Driving , Load , Model , Pyramidal-prismatic pile , Settlement , Soil , Testing
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Geotechnical Testing Laboratory, Dulaty University, 60, Tole bi, Taraz, 080000, Kazakhstan
Department of Water Resources and Hydraulic Structures, Faculty of Water Management and Construction, Dulaty University, Campus 6.2, 28, Satpayev, Taraz, 080012, Kazakhstan
Geotechnical Testing Laboratory
Department of Water Resources and Hydraulic Structures
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