Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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TESTING OF UNDERGROUND PIPELINES UNDER DIFFERENT KINDS OF TRAFFIC LOADS

Rakitin B.A. 1 Ivashenko Y.A. 1 Saburov V.F. 1
1 South Ural State University (National Research University)
In this paper the method of full-scale testing of non-pressure reinforced concrete pipes with an inner diameter of 1400 mm, laid in a trench, is presented. The experimental results and research conclusions are shown. The aim of this study was to investigate the influence of different traffic loads on the stress - strain state of large diameter reinforced concrete pipes. To do this, the authors developed a new method of field testing, which allowed for a relatively short period of time to get enough data about studied subject. In addition the calculations were performed using the package of finite element programs PLAXIS 2D Version 9, designed for two-dimensional calculations of the deformations and stability of structures. Using the experimental results the conclusion about the possibility of using non-pressure concrete pipes of large diameter reinforced with single cylindrical cage, instead of a double, for the construction of underground pipelines is made. The authors also calculated the expected economic effect obtained in the manufacturing of reinforced concrete pipes with a single cylindrical cage.