4 A newly emerging microbiological soil stabilization method, known as microbially 5 induced calcite precipitation (MICP), is tested for geotechnical engineering 6 applications. MICP is a promising technique that utilizes the metabolic pathways of 7 bacteria to form calcite precipitation throughout the soil matrix, leading to an increase 8 in soil strength and stiffness. This paper investigates...

A soil core, obtained from a contaminated field site, contaminated with a mixture of volatile and semivolatile organic compounds (VOC and SVOC) was subjected to air and steam flushing. Removal rates of volatile and semivolatile organic compounds were monitored during flushing. Air flushing removed a significant portion of the VOC present in the soil, but a significant decline in removal rate oc...

Abstract Unsaturated permeabilities of six different kaolin-sand mixtures named as 100K0S, 90K10S, 80K20S, 50K50S, 20K80S, and 10K90S were directly measured using a modified flexible wall triaxial permeameter system. 90K10S means that the soil mixture contains 90% kaolin 10% sand by dry mass. Soil–water characteristic curves (SWCC) also for wide range suctions Tempe pressure cell, 5-bar plate, ...

in recent decades, attention to contamination propagation into soils and underground water has increased, which has led to a rise in the studies on soil contamination problems and methods of in-situ remediation. in this research, effective parameters on oil contamination propagation in soils and underground water have been investigated using fem in order to determine propagation patterns. the m...

Plant productivity is directly affected by the capacity of the root system to forage for soil resources. An enhanced understanding of root-soil interactions provides the potential to improve crop performance in specific soil environments. Interactions between roots and soil are, however, complex. The root-soil environment is heterogeneous and difficult to visualise and measure, root architectur...

Coffee (Coffea sp.) is one of the leading commodities in Indonesia for it has a high economic value. In Bangelan Village, Malang Regency, there company that manages robusta coffee commodity. The land was converted into plantation from forest land. conversion caused decreasing number total soil pores lower than This will make difficult water to absorb soil. research conducted Afdeling Besaran, P...

The main task of soil stabilization is to change their physical characteristics in order strengthen them. Among the stabilized soil, there are no requirements for its filtration. Meanwhile, filtration coefficient an important parameter characterizing permeability soils relation water at full saturation, numerically equal rate a unit pressure gradient. article presents results test determine usi...

Land-use changes adversely may impact ecological entities and humans by affecting the water cycle, environmental changes, energy balance at global regional scales. Like many megaregions in fast emerging countries, Tamil Nadu, one of largest states most urbanized (49%) industrial hubs India, has experienced extensive landuse landcover change (LULC). However, extent level landscape associated wit...

The extraction of oil and gas from productive reservoirs complex geological structures is constantly increasing. Thus, it obvious that reliable mathematical models able to manage such porous media are particular interest. In this paper, a model filtration flow well located in an anisotropic heterogeneous soil formation, with piecewise-smooth external contour, numerically studied. permeability s...