Soil stabilization

About: Soil stabilization is a research topic. Over the lifetime, 3161 publications have been published within this topic receiving 48437 citations.

Process for making a mattress-type gabion for soil stabilization

Abstract: Mattress Gabions are provided for soil stabilization revetments, designed to halt erosion and/or to consolidate the soil. A protective revetment consisting of a structure of vegetable matter forms a mattress gabion which retains the soil inside each of a multiplicity of individual cells. Each cell of the container can be filled with earth or a soil or soil-forming mixture, encouraging the growth of vegetation inside the mattress, in order to afford a natural protection to the soil of banks or excarpments, etc. Once it has been filled, the mattress is closed by a top cover in double twist steel mesh, after laying a geosynthetic sheet between the two to keep in fine materials.

Geospatial Measurements of Apparent Soil Electrical Conductivity for Characterizing Soil Spatial Variability

Abstract: This chapter provides an overview of the characterization of soil spatial variability using EC(a) directed soil sampling for three different landscape-scale applications; (1) solute transport modeling in the vadose zone; (2) site-specific crop management; and (3) soil quality assessment. Guidelines, methodology, strengths and limitations are presented for characterizing spatial and temporal variation in soil physiochemical properties using EC(a) directed soil sampling.

Soil modification by addition of cactus mucilage

Abstract: This research provides insight on the laboratory investigation of the engineering properties of a lateritic soil modified with the mucilage of Opuntia ficus-indica cladodes (MOFIC), which has a history of being used as an earthen plaster. The soil is classified, according to AASHTO classification system, as A-2-6(1). The Atterberg limits, compaction, permeability, California bearing ratio (CBR) and unconfined compressive strength of the soil were determined for each of 0, 4, 8 and 12% addition of the MOFIC, by dry weight of the soil. The plasticity index, optimum moisture content, swell potential, unconfined compressive strength and permeability decreased while the soaked and unsoaked CBR increased, with increasing MOFIC contents. The engineering properties of the natural soil, which only satisfies standard requirements for use as subgrade material, became improved by the application of MOFIC such that it meets the standard requirements for use as sub-base material for road construction. The effects of MOFIC on the engineering properties of the soil resulted from bioclogging and biocementation processes. MOFIC is recommended for use as a modifier of the engineering properties of soils, especially those with similar characteristics to that of the soil used in this study, to be used as a pavement layer material. It is more economical and environment-friendly than conventional soil stabilizers or modifiers.

Assessing Failure Envelopes of Soil–Fly Ash–Lime Blends

Abstract: This study aims to establish the influence of curing time and the amount of lime and porosity in the assessment of the Mohr-Coulomb failure envelope of fly ash–lime-treated soils based on unconfined compressive strength (σc) and splitting tensile strength (σt) of such materials. Founded on the concept that the σt/σc relationship is unique for each specific fine-grained soil, fly ash, and lime blends, it is shown that the angle of shearing resistance of a given lime-treated soil is independent of the porosity and the amount of lime of the specimen and that cohesion intercept is a direct function of σc (or σt) of the improved soil, which depends of the porosity and volumetric amount of lime of the soil–fly ash–lime blends. Finally, the concepts are tested with success for a sandy soil treated with fly ash and lime at distinct curing time periods, considering moderate to strong cementation levels.