The use of geosynthetic materials to increase the bearing capacity of soil cushions

The use of geosynthetic materials to increase the bearing capacity of soil cushions

Автор: Jumadilova S.Zh., Khomyakov V.A., Kenebayeva A.K., Moldamuratov Zh.N.

Журнал: Nanotechnologies in Construction: A Scientific Internet-Journal @nanobuild-en

Рубрика: Manufacturing technology for building materials and products

Статья в выпуске: 4 Vol.16, 2024 года.

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Introduction. The development of Kazakhstan's megacities has led the construction sites to the territories with weak, macroporous soils. Construction on such soils requires a set of measures to strengthen and improve their mechanical properties. Methods and Materials. The article discusses the development of a method of surface hardening by replacing weak soil. This development is associated with the use of different types geosynthetics. The principles of operation of a soil foundation reinforced with various geosynthetic materials are considered. The mechanical properties of geotextiles, geogrids and geogrids used to harden embankment soils have been studied. A new test procedure for geosynthetic materials has been developed. This procedure differs from the traditional method specified in GOST 32491 with a constant deformation rate. Results and Discussion. Tests of geosynthetic materials in kinematic mode have shown that a decrease in tensile strength is observed for all materials. The reduction ranges from 28% to 42% for different types of geogrids. The elongation at break decreased for the hexagonal and biaxial geogrid by 8.6% and 30%, respectively. An increase in relative elongation was noted for a uniaxial geogrid. According to geotextile, the tensile strength decreased by 15.7%, and the elongation increased by 26.5%. Conclusion. Research results have shown the effectiveness of the recommended reinforcement methods to increase the bearing capacity of the bases and the possibility of their application in various regions of Kazakhstan.

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Geosynthetic material, soil cushion, base, geogrid, deformation

Короткий адрес: https://sciup.org/142242262

IDR: 142242262   |   DOI: 10.15828/2075-8545-2024-16-4-342-354

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