Flume research of the stress-strain state of the base of pile foundation by a phased loading of its elements

Authors

  • V. L. Sedin Dr. Sc. (Tech.), Prof., Ukraine
  • E. M. Bikus Ph. D., Assos. prof., Ukraine
  • V. V. Kovba postgraduate student., Ukraine

Keywords:

flume research, gradual loading of the pile foundation fragment, additional tangential stresses, soil deformation.

Abstract

Annotation. Purpose. Laboratory research of the stress-strain state of base fragment of pile foundation with individual, or sequential loading of its elements. Methodology. Two series of tests were carried out: first series - the plate connected with the pile was loaded (it imitates the work of the classical pile foundation fragment, which deformation of the base will be taken as 100%); second series - in 2 stages: 1 st stage: the plate, unconnected with the pile, was loaded, the second stage: the plate and the pile were connected together. Results. During the 1-st stage of the second series of tests deformation of the soil under the plate, that caused the displacement of the pile (unconnected with the piece of plate) almost for 3 mm, was recorded. Originality. Laboratory recorded the occurrence of additional tangential stresses around the pile, unconnected with the piece of plate under loading plate, to the depth of 1,2...1,8 of the width of the piece of plate. Practical value. Sequential mobilization of all components of the pile foundation will help increase their trust level and to utilize the maximum potential of the ground bases, which could be an additional factor in the preservation of resources for the construction of pile foundations in general.

Author Biographies

V. L. Sedin, Dr. Sc. (Tech.), Prof.

Department of bases and foundation, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

E. M. Bikus, Ph. D., Assos. prof.

Department of bases and foundation, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

V. V. Kovba, postgraduate student.

Department of bases and foundation, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

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Published

2017-03-28

Issue

Section

Proceedings in memory of Starodubov