Studies were conducted to determine the effect of osmotic and matric stress on germination and growth of two Fusarium solani strains, the etiological agent responsible of peanut brown root rot. Both strains had similar osmotic and matric potential ranges that allowed growth, being the latter one narrower. F. solani showed the ability to grow down to -14 MPa at 25 °C in non-ionic modified osmoti...

Estimating penetrometer resistance and matric potential from the velocities of shear and compression waves Journal Article How to cite: Gao, W.; Watts, W. R.; Ren, T.; Shin, H.; Taherzadeh, S.; Attenborough, K.; Jenkins, M. and Whalley, W. R. (2013). Estimating penetrometer resistance and matric potential from the velocities of shear and compression waves. Soil Science Society of America Journa...

A 25.5 km long access road has been constructed in a hilly area Cisokan region. Several slope instabilities occurred during the rainy season, particularly at end of heavy rainfall. comprehensive study was performed to understand characteristics rainfall-induced instability. The consisted field observation, analyses and laboratory test data, numerical analyses. revealed that general there were t...

In order to study the strength characteristics of alluvial silt in lower Yellow River Channel at Luokou, Jinan, by varying moisture content five times, direct shear tests were conducted and soil–water curves obtained explore relationships between matric suction as well bishop coefficient strength. The curve test shows that water retention samples can be fitted VG (Van Genuchten) model with appr...

Many slope failures have been observed in deep-cutting gorges Southwest China due to rainfall events. This study conducted model-based tests of the failure a gently dipping accumulation caused by intermittent rainfall. The physical model was established configuring soil samples based on similarity theory and direct shear test data. Intermittent simulated supplying surface runoff bottom pressure...

Railways are one of the largest transportation networks in world. One key subgrade problems railway track is associated with progressive shear failure (PSF). To-date, limited number studies have addressed mechanism PSF, especially extending mechanics unsaturated soils. In this paper, PSF studied aid computer program that was developed using a Visual Basic AutoCAD, Mohr-Coulomb criteria within s...

Unsaturated swelling soil behaviour is governed by the matric suction, thus predetermination of stress for expansive unsaturated requires rigorous procedures. However, some equations assume full saturation soil, which leads to over-design infrastructure. This study focused on validation predictive models that correlate suction with other properties. Three were developed, and independent data us...