Smart foundations for undermined and seismically affected territories
Smart foundations for undermined and seismically affected territories
Significant territories of Kazakhstan are located in the zones of influence of underground mining and also seismically hazardous areas, leading to the displacement of rocks and uneven deformations (precipitations) of the earth's surface. Seismically dangerous are the territories of the south and south-east of Kazakhstan, where up to 40 percent of the country's population lives. A new design of the conical foundation developed by the Geotechnical Institute at the L.N. Gumilyov Eurasian National University in Astana and Karaganda Industrial University in Temirtau was presented. The design of the conical foundation proposed by the authors is 2/3 of its height immersed with a tip into the soil base, which increases its bearing capacity under the influence of technogenic impact, since the area of the tapered foundation structure raises with immersion into the soil base, i.e. the settlement of the tapered foundation has a positive effect on its bearing capacity. The round shape of the base of the inverted cone eliminates the concentration of stresses near the corners and the formation of cracks at the corner points. Model tests of conical foundations were carried out on a specially developed stand for modelling the deformability of the undermined foundation. A volumetric stand allowed individual sections to move in a horizontal plane and drop individually, thereby simulating the subsidence and displacement of the base soil.
A. Zhussupbekov; B. A. Bazarov; Assel Sarsembayeva; Abdulla R. Omarov; S. Mussakhanova; D. Mukhanov
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
A - New developments on structural design
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