FALLING HEAD PERMEABILITY TESTOTHER QUESTIONS:1. What is the importance of finding the coefficient of permeability of soils?2. What is the difference between constant head permeability test and falling head permeability test?3. Why is it needed to fully saturate the soil first before conducting the experiment?4. Why is there a need to remove air bubbles from the specimen? Determination of Coefficient of PermeabilityTest No.12Diameter of specimen, D(cm)Length of specimen, L (cm)6.356.356.3513.213.23.2Area of specimen, A (cm)31.6731.6731.6775.070.0Beginning head difference,h1 (cm)Ending head difference,h2 (cm)Test duration, t (s)65.034.025.020.020.419.315.4Volume of water flow746857through the specimen,V„ (cm³)2.303V„Lh1k =(h1-h2)tAlog는 (cm/s?)h2Average k =NT°Ck20°c = kr°cN20°CVariation of Nr°c/N20°CTemperature, T(°C)Temperature, T(°C)N7°C/N20°C1.135/n20°C15230.931161.106240.910171.077250.889181.051260.869191.025270.850201.000280.832210.976290.814220.953300.797 Determination of Void Ratio of SpecimenDescription of Soil: SandLength of Specimen (L): 13.2 cmDiameter of Specimen (D): 6.35 cmTemperature: 27°CVolume of Specimen, V= D²L(cm²)Specific gravity of soil solids, G,2.66Mass of specimen tube with fittings, W1 (g)238.4Mass of tube fittings and specimen, W2 (g)965.3Dry density of specimen, pa-!W2 -W1 (g/cm3)VGsPwVoid ratio of specimen, e =Pd1|(Note: pw=1g/cm³)

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FALLING HEAD PERMEABILITY TEST OTHER QUESTIONS: 1. What is the importance of finding the coefficient of permeability of soils? 2. What is the difference between constant head permeability test and falling head permeability test? 3. Why is it needed to fully saturate the soil first before conducting the experiment? 4. Why

FALLING HEAD PERMEABILITY TEST OTHER QUESTIONS: 1. What is the importance of finding the coefficient of permeability of soils? 2. What is the difference between constant head permeability test and falling head permeability test? 3. Why is it needed to fully saturate the soil first before conducting the experiment? 4. Why

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.19P

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