Russian Federation
the paper discusses the results of in-situ tests for behavior of the drill injection pile with controlled widening at its end in pulverescent – clay foundation soil of flexible consistency carried out at an experimental site in Tyumen. The results make of possible to determine the radius of the consolidation zone, its tress – strain condition and physical – mechanical properties. He soil bed in its active zone changed in the area of the drill – injection pile. The comparative analysis has been carried out to reveal the behavior of the drill – injection pile with controlled widening and without it with single and repeated injection grout under vertical static loading.
dril-injection pile, controlled boardering, pulverescent clay soils, reconstruction, underground floor.
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