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Title: Determination of Equivalent and Optimal Sizes of Wedge Tip from Flange for the Static Perforation of Soil
Authors: Posmitiukha, Oleksandr P.
Kravets, Svyatoslav V.
Suponyev, Volodymyr
Hlavatskyi, Kazymyr Ts.
Keywords: wedge tip
static perforation
Issue Date: 2018
Publisher: Український державний університет залізничного транспорту, Харків
Citation: Determination of equivalent and optimal sizes of wedge tip from flange for the static perforation of soil [Electronic resource] / O. P. Posmituha, S. V. Kravets, V. Suponyev, K. Ts. Glavatsky // MATEC Web of Conferences. – 2018. – Vol. 230 : 7th International Scientific Conference “Reliability and Durability of Railway Transport Engineering Structures and Buildings” (Transbud-2018), Kharkiv, Ukraine, November 14–16, 2018. – Access Mode: (04.01.2019). – doi:10.1051/matecconf/201823001011.
Abstract: EN: Abstract. The purpose of the study is to create a new design of the working tip for the perforation of the soil when laying two or more buildings trenchless way and determine its rational parameters. Method. It is known that for static perforation in the formation of cavities in the soil for communication is traditionally used cone-shaped working elements, which is the most common, cheap and reliable. However, the study revealed inefficiency. The design of the working elements of the soil perforation for trenchless laying of two or more buildings simultaneously in the form of a tip, which consists of a wedge-shaped part and a control part in the form of a rectangle with half-cylinders. The basic principles and mathematical dependences of determining the size of the working body are described. Scientific novelty. Regularities of changes in soil pressure on the lateral, conical and wedge surface, flat and cylindrical part of the tip, allowed to obtain an analytical dependence for the calculation of the resistance force depending on the physical and mechanical properties of the soil, the diameter and the number of cases established simultaneously. Also, when comparing the cone-cylindrical and flat tips, it can be argued that the breakdown force of the flat tip decreases from 1.2 to 1.7 times.
Description: O. Posmitiukha: ORCID 0000-0002-9701-3873, K. Hlavatskyi: ORCID : 0000-0002-3353-2543
Other Identifiers: doi:10.1051/matecconf/201823001011
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