Naslov
Foundation improvement for a building on loess soil

Autori
Mulabdić, Mensur ; Minažek, Krunoslav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering / Hamza, Mamdouh ; Shahien, Marawan ; El-Mossallamy, Yasser - Alexandria : IOS Press, 2009, 2362-2365

Skup
17th International Conference on Soil Mechanics and Geotechnical Engineering

Mjesto i datum
Aleksandrija, Egipat, 05.10.2009. - 09.10.2009

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
settlement ; soil ; improvement ; jet-grouting ; monitoring

Sažetak
A high school two store building made of bricks, about 200 years old, suffered from settlement caused by increase of water content in loess soil, as a result of leakage of sewage system. Soil improvement with use of jet-grouting was designed and applied as a measure of foundation improvement and suppression of further settlement and fissuring of the building. Grouting was executed on outer and inner foundations, in the region affected by settlement, to the depth of 12 m under surface. In order to assure most suitable grouting technique a trial piles of jet-grouting were executed, aside from the object, using different pressures, direction of jet and time of jet action in place. With the pressure of 400 bar columns of 55 cm in diameter were obtained and it was accepted as a good result having in mind distance and spacing of boreholes under foundation. During execution of soil improvement measurement of soil deformation with depth and measurement of cracks in walls was performed, as well as topographic measurement of points on building. Before start of jet – grouting tunnels under building were filled with special concrete through the borehole from the surface. Comprehensive measurement of soil deformations, settlement and cracks on the building was performed before, during and after remediation work. Movements of the building ceased some time after the work was done, indicating that remediation work was successful.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA