Geotechnical Engineering

DHARM 40 GEOTECHNICAL ENGINEERING Assuming that the sand is in the densest state: emin = V V v s min max , for which the corresp ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 41 Table 3.2 Representative values of Density Index and typical unit weights (Mc ...

DHARM 42 GEOTECHNICAL ENGINEERING Handle Hole Cylinder Cover plate of shutter Shutter Cone 100 mm 100 mm 125 or 150 mm (a) Sand- ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 43 ∴ Weight of sand filling the calibrating container, Wcc = (W 2 – W 3 ) – Wc = ...

DHARM 44 GEOTECHNICAL ENGINEERING Rammer Dolly Core-cutter Cutting edge Fig. 3.8 Core-cutter apparatus The core-cutter is 10 cm ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 45 Paraffin, being water-proof, prevents the entry of water into the soil sample ...

DHARM 46 GEOTECHNICAL ENGINEERING Information with regard to important I.S. Sieves in common use is given in Table 3.3. Table 3. ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 47 total sample. The percentage material finer than a sieve size may be got by s ...

DHARM 48 GEOTECHNICAL ENGINEERING 3.8.3 Sedimentation Analysis (Wet Analysis) The soil particles less than 75–μ size can be furt ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 49 Assuming G = 2.67, on an average, v = 1 180 ×()( )9.792 2.67−^1 0.001 . D^2 = ...

DHARM 50 GEOTECHNICAL ENGINEERING would remove calcium compounds. Later, a deflocculating or a dispersing agent, such as so- diu ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 51 A boiling tube of 500 ml capacity kept in a constant temperature bath may als ...

DHARM 52 GEOTECHNICAL ENGINEERING The calculations completed for all the samples would provide information for the grain- size d ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 53 Weight of water per unit volume of suspension = γw 1 − F HG I KJ W VG..γw = γ ...

DHARM 54 GEOTECHNICAL ENGINEERING Calibration The method of calibration can be easily understood from Fig. 3.12. Let h be the hi ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 55 5 0 5 10 15 20 25 30 35 40 Rh¢ 32 24 cm 16 He 8 Fig. 3.13 Calibration graph ...

DHARM 56 GEOTECHNICAL ENGINEERING reading on this account. For this purpose, the hydrometer is placed in clean distilled water a ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 57 Typical grain-size distribution curves are shown Fig. 3.14. A soil is said to ...

DHARM 58 GEOTECHNICAL ENGINEERING Quantitatively speaking, the uniformity of a soil is defined by its “Coefficient of Uni- formi ...

DHARM INDEX PROPERTIES AND CLASSIFICATION TESTS 59 910 87 6 5 4 3 2 189 8 7 6 5 4 3 2 90.1 765432 0.01 100 80 60 40 20 10 0 Per ...