Constant head permeability Lab Report Example | Topics and Well Written Essays - 1000 words

Constant head permeability - Lab Report suitPermeability as defined above is the capacity of sample of soil to allow the passage of pee through it. It is also referred to as hydraulic conductivity. The coefficient of permeability is the velocity of flow that is generated by the hydraulic gradient of unity as stipulated by Darcys law which is given by the formula6. The tamping device is because used to compact the soil layer. About 10 rams per layer are recommended in order to stomach a uniform coverage of the surface of the soil. The process should be repeated until the soil layer is at bottom the range of 2 cm.10. The bottom of the outlet valve is opened and raised to a given height in order to achieve a reasonable steady flow of water. Enough time should be allowed for the blueprint of flow of the water to stabilize.11. The time taken to fill a volume of 750-1000 ml using the graduated cylinder and the temperatures of the water recorded. This process is repeated three times and the average time, volume and average temperature computed.From the foregoing, it is go across that the value of the coefficient of permeability has been determined using the constant head test and found to be 0.2333 cm/s. as indicated earlier that the constant head test is appropriate for permeabilitys of soils where k10 4 cm/s, this has been proven to be consistent with the results obtained.Constant Head Permeability Test in Sand, University of Texas at Arlington Geotechnical engineering science Laboratory Test Procedure. Retrieved from http//www.uta.edu/ce/geotech/lab/Main/Soil%20Lab/08_Permeability/permeability_lecture%20note.pdf. Accessed on 15th April