Deep compaction control of sandy soils

• Autorzy: Bałachowski L. , Kurek N.

Identyfikatory

DOI

10.2478/sgem-2014-0014

• Języki publikacji: EN

Abstrakty

EN

Vibroflotation, vibratory compaction, micro-blasting or heavy tamping are typical improvement methods for the cohesionless deposits of high thickness. The complex mechanism of deep soil compaction is related to void ratio decrease with grain rear-rangements, lateral stress increase, prestressing effect of certain number of load cycles, water pressure dissipation, aging and other effects. Calibration chamber based interpretation of CPTU/DMT can be used to take into account vertical and horizontal stress and void ratio effects. Some examples of interpretation of soundings in pre-treated and compacted sands are given. Some acceptance criteria for compaction control are discussed. The improvement factors are analysed including the normalised approach based on the soil behaviour type index.

Słowa kluczowe

EN

vibrocompaction; CPTU; sands; soil behaviour type

PL

CPTU; piaski; gleby piaszczyste; zagęszczanie wibracyjne

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2014
• Tom: Vol. 36, nr 2
• Strony: 3--8
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Bałachowski L.

• Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, Gdańsk, Poland

autor

Kurek N.

• Menard Polska sp. z o.o., Warszawa, Poland

Bibliografia

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