Ground thermal properties, especially the conductivity, are of paramount importance for design ground source heat pump systems (GSHP), used space heating and cooling. However, very little information, if any, available from characteristics tropical unsaturated soils related to GSHP application. To evaluate behaviour a typical Brazilian soil, an extensive experimental investigation was conducted...

A sudden slope failure occurred in Manisa possibly due to the effect of water infiltration because a slightly damaged sewage pipe. Considering that there was no other evidence such as rainfall or any loading conditions trigger failure, laboratory investigation on soil’s unsaturated hydro-mechanical properties initiated. Slopes are naturally soils, and they may lose their stability with increase...

The hysteresis characteristics of soil-water characteristic curves (SWCCs) under dry-wet cycling conditions are very important for understanding unsaturated soil properties, so it is crucial to propose an accurate and efficient method predicting the hysteretic behaviors SWCCs. To this end, paper investigates SWCCs in full suction range seven kinds Hunan red clay with different initial dry densi...

The effects of osmotic and matric water potential on mycelial growth, production and germination of conidia, and production and maturation of pseudothecia of Pyrenophora triticirepentis (PTR), the cause of tan spot of wheat, were examined on clarified V8 juice agar amended with KCl or polyethylene glycol 8000 (PEG8000). Patterns of the growth responses of three isolates to decreasing osmotic an...

The initial soil water content affects wetting front instability. A series of experiments were conducted where water was infiltrated into a 20/30 sand with initial volumetric water contents of 0, 0.005, 0.01, 0.015, 0.02, 0.03, 0.04 and 0.047 cm/cm. Both water content and matric potential were measured. Water content was measured with Synchrotron X-rays at the Cornell High Energy Synchrotron So...

Vegetation is important for managing shallow geotechnical assets. However, root water uptake-driven changes in slope hydrology and the near-surface (soil content, matric suction, hydraulic conductivity) are highly complex. Improved knowledge of these processes increasingly as society faces threat a greater prevalence climate-driven extreme rainfall drought events. Intrinsic factors affect stabi...

Abstract Water-induced landslides pose a great risk to the society in Norway due their high frequency and capacity evolve destructive debris flows. Hydrological monitoring is widely employed method understand initiation mechanism of water-induced under various climate conditions. systems can provide relevant information that be utilized landslide early warning mitigate by issuing warnings. Thes...

In recent years, granular bentonite GB has become a reference material since it facilitates the backfilling operation due to high-density compacted granules with extended grain size distribution(maximum sizes around 10 mm). This investigation explores initial microstructure of MX80-type and hydro-mechanical HM response observed at phenomenological scale. Samples were statically fixed dry densit...

The performance of a recently developed state-dependent constitutive model for unsaturated granular soils is evaluated. employs the Bounding Surface plasticity framework and evaluates elastic strains assuming hyperelastic behavior. To realistically simulate deformation soils, mechanical behavior was modeled without purely component. inherent hydro-mechanical coupling realized by introducing Bis...

Water migration changes the water distribution of loess and significantly affects engineering properties loess. However, because characteristics such as sensitivity special structure, it is still difficult to understand trend The objectives this study are investigate diffusion coefficient soil-water characteristic curve (SWCC) loess, focusing on effect temperature density, establish a mixed equ...