Permeability of Fibre Reinforced Sandy Soil—Practical Versus Theoretical Approach
摘要
All soils are made up of a combination of air, water, mineral matter and organic material. All these components are impacted by the activities that take place in their immediate surroundings in addition to the ecosystem as a whole. Sandy Earth Soil possesses a variety of characteristics, including colour, texture, structure, pH, organic matter and water content. The coefficient of permeability in a soil is influenced by the inclusion of fibers in the soil mix and the overburden stress applied to the soil. While previous researchers have conducted tests on different types of soils, none of them have used both horizontal and vertical permeability tests to apply neutral stresses in fiber-reinforced sandy soils. Therefore, a comprehensive study was necessary to establish sand as a potential material for substituting existing ones. The most favorable results were achieved when a combination of 6 and 12 mm fibers, in equal proportions, was used to determine the permeability. Moreover, the permeability values were significantly reduced when subjected to an overload pressure of 150 kPa in randomly distributed fiberous sandy soil. However, beyond 150 kPa, there was no significant change in permeability. Furthermore, there was a noteworthy improvement in the permeability of randomly distributed fiber reinforced sand when fibers were added up to a concentration of 0.75%. Beyond this fiber content, there was no significant change in permeability. The results were analyzed theoretically further by comparing with established empirical formula and results obtained practically were found to be valid following the basic principles of permeability as well. Integral absolute error was also determined and it is less than permissible limit of 10% indicating the authenticity of experimental work in the determination of permeability.