In order to study the seepage process of rainwater on granite residual soil cut slopes, a numerical model for analysis slopes was established. Then, by applying rainfall boundary condition, path slope analyzed under condition infiltration. Finally, during seepage, volumetric water content and pore-water pressure change characteristics inside were analyzed, mechanism in revealed. The results sho...

Laboratory apparatuses for the analysis of infiltration and runoff enable studies under controlled environments at reduced costs. Unfortunately, design construction such systems are complex face difficulties associated with scale factor. This paper presents design, construction, evaluation a portable rainfall simulator. The apparatus allows unsaturated soils without vegetation cover, wide range...

Unsaturated soil is a form of natural whose pores are filled by air and water. Different from saturated soil, the microstructure unsaturated consists three phases, namely, solid phase (soil particle), vapor phase, liquid phase. Due to matric suction pores, hydraulic mechanical behaviors soils present significant dependence on moisture condition, which usually results in series unpredictable ris...

The unsaturated soils mechanics is strongly related to the suction phenomenon that occurs between solid soil particles, which changes when water content does not remain constant. soil-water characteristic curve (SWCC) provides information and of soil; obtain such a different direct indirect methods can be used. In this research for sands obtained through implementation filter paper test. For pu...

Shallow foundations are often situated on unsaturated zones above the groundwater table. In this study, the influence of rainfall infiltration on the settlement behavior of shallow foundations was investigated using numerical analyses. The numerical solutions were compared with experimental data from in-situ load tests. The relative importance of rainfall intensities and groundwater table posit...

The objective of this study is to estimate multiple-cycles of the soil-water characteristic curve (SWCC) using an innovative volumetric pressure plate extractor (VPPE), which is incorporated with a membrane and time domain reflectometry (TDR). The pressure cell includes the membrane to reduce the experimental time and the TDR probe to automatically estimate the volumetric water content. For the...

This paper presents the results of a centrifuge study in which swell an expansive clay profile was induced centrifuge. A factor has previously hindered such research is time required to induce significant in-flight, within reasonable frame. In this use artificially fissured fabric together with geotextile layers allowed for magnitude be achieved matter hours. Measurements matric suction and wat...

Earthquakes have caused significant damage to civil engineering structures worldwide due inadequate lateral load capacity and excessive deformation of pile foundations supporting these structures. The seismic performance interacting with unsaturated soils could be affected by changes in matric suction the moisture content variation induced seasonal weather or water table fluctuations. Hence, ma...

Heavy rainfall can lead to shallow slips in slopes that are initially in a state of partial water saturation. Multiphysics numerical modelling approaches taking into account the involved physical key processes in variably saturated soils during rainfall events could help in understanding the main slip mechanisms. The concerned processes are related to water flow through the solid matrix, soil w...