Geotechnical Engineering

DHARM 20 GEOTECHNICAL ENGINEERING = () () Ge e + 1 + .γw – γw = γw Ge e () () + + − L N M O Q 1 1 P ∴ γ′ = () () . G e w − + 1 1 ...

DHARM COMPOSITION OF SOIL TERMINOLOGY AND DEFINITIONS 21 Water content, w = weight of water weight of solids = Se G w w γ γ = S. ...

DHARM 22 GEOTECHNICAL ENGINEERING Water content, w = (.. ) . 1 668 1 400 140 100% − × = 19.14% Total volume of soil sample, V = ...

DHARM COMPOSITION OF SOIL TERMINOLOGY AND DEFINITIONS 23 Porosity, n = 35% Void ratio, e = n/(1 – n) = 0.35/0.65 = 0.54 Specific ...

DHARM 24 GEOTECHNICAL ENGINEERING Full saturation, S = 100% Unit weight = () () . (.. ) . Ge. e w + + = + 1 280 065 165 γ 981 kN ...

DHARM COMPOSITION OF SOIL TERMINOLOGY AND DEFINITIONS 25 whence G = 2.74 Specific gravity of soil particles = 2.74 Void ratio = ...

DHARM 26 GEOTECHNICAL ENGINEERING Water content, w = () (. .) . WW W d d − ×= − 100 25 21× 21 100% = 040 210 100% . . × = 19.05% ...

DHARM COMPOSITION OF SOIL TERMINOLOGY AND DEFINITIONS 27 Vs = WW G s s s γγw == . × 210 26 001 = 80.77 cm^3 Vv = (V – Vs) = (150 ...

DHARM 28 GEOTECHNICAL ENGINEERING M.G. Spangler : Soil Engineering, International Textbook Company, Scranton, USA, 1951. D.W. T ...

DHARM COMPOSITION OF SOIL TERMINOLOGY AND DEFINITIONS 29 2.8. (a) Define ‘Soil Texture’ and ‘Soil structure’. What are the vario ...

3.1 Introduction As an aid for the soil and foundation engineer, soils have been divide into basic categories based upon certain ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 31 impart black colour to the soil. Green and blue colours may be imparted by fa ...

DHARM 32 GEOTECHNICAL ENGINEERING The grain specific gravities of some common soils are listed in Table 3.1, which should serve ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 33 First, the weight of the empty pycnometer is determined (W 1 ) in the dry con ...

DHARM 34 GEOTECHNICAL ENGINEERING If kerosene is used, G = WG WWW s k s −−() 34 ...(Eq. 3.2) where Gk = Specific gravity of kero ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 35 The knowledge of water content is necessary in soil compaction control, in de ...

DHARM 36 GEOTECHNICAL ENGINEERING 3.5.2 Pycnometer Method This method may be used when the specific gravity of solids is known. ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 37 ∴ w = WWW W s s 21 −− = ()WW Ws 21 − – 1 = () () WW() WW G G 21 34 − 1 − − 1 ...

DHARM 38 GEOTECHNICAL ENGINEERING Vs Vv Vs Vv Vs Vv Voids Voids Voids Solids Solids Solids Loosest state void ratio : emax Inter ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 39 obtaining the weight of the soil. The compaction is achieved by applying vibr ...