Naslov
Case Histories of Very Hard Fissured Soils Stiffness Determination

Autori
Kovačević, Meho-Saša ; Skazlić, Željana ; Szavits-Nossan, Vlasta

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

Izvornik
Geotechnology in Harmony with the Global Environment / Adachi, T. - Osaka : Millpress Rotterdam, 2005, 703-706

Skup
XVI International Conference on Soil Mechanics and geotechnical engineering

Mjesto i datum
Osaka, Japan, 12.09.2005. - 16.09.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
stiffness; hard soil; soft rock; classification

Sažetak
Very hard fissured soils fall in the category of soft rocks. The stiffness of rock is usually determined through correlations with the classification index RMR because laboratory samples are not representative of the whole rock mass. Contrary to the standard laboratory determination of soil stiffness, which greatly overestimates small soil deformations, it has been shown that the RMR correlations greatly underestimate deformations, which are measured during construction in hard fissured soils. Interactive design measures are then required to enable the excavation stability. A modified correlation between RMR and the soil stiffness is presented in the paper based on five case histories of excavations in fissured soils, where deformation measurements were taken throughout construction.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA