Complete the Table for Increment 6 H0, H50, and H100 are determined using Cassag

Question

Complete the Table for Increment 6

H0, H50, and H100 are determined using Cassagrande's method for interpreting time rate consolidation behavior. t50 is interpreted from Cassagrande's method. Cv is calculated assuming a time factor (T50=0.197). Volumetric strain is calculated as the total displacement normalized by the initial height. The void ratio is determined from the initial void ratio minus the change in void ratio for each load increment. Both volumetric strain and void ratio are shown for end of primary consolidation (EOP, i.e. U=100%) and correspond to H100 height values. mv is the stiffness coefficient used to estimate permeability (k)

Explanation / Answer

itial Height [cm] 2.1585 Initial Void Ratio 1.452 LL 88 Casagrande's Method Increment # s'v0 s'v H0 H50 H100 t50 cv ev eEOI mv k [kPa] [kPa] [cm] [cm] [cm] [min] [cm2/s] [%] [1/kPa] [cm/s] 1 0 10.5 2.1585 2.1542 2.1496 4.567 8.34E-04 0.44% 1.452 4.15E-04 3.40E-08 2 10.5 21 2.1471 2.144 2.141 8.52 4.43E-04 0.84% 1.442 3.81E-04 1.70E-08 3 21 39.4 2.1377 2.13 2.1224 5.403 6.89E-04 1.69% 1.421 4.67E-04 3.20E-08 4 39.4 77.6 2.1112 2.0998 2.0886 7.442 4.86E-04 3.26% 1.382 4.10E-04 2.00E-08 5 77.6 157.3 2.0777 2.0477 2.0178 11.408 3.02E-04 6.54% 1.301 4.12E-04 1.20E-08 6 157.3 313 2.1716 2.1446 2.1175 0.983 2.30E-04 6.33% 1.26 3.93E-04 1.18E-08 Increment 6 Height, H (in) Time, t (s) 0.8511 6 0.8493 12 0.8493 14 0.8489 16 0.8482 19 0.8475 22 0.847 26 0.8467 31 0.8463 38 0.8454 46 0.8445 55 0.8435 68 0.8429 84 0.8416 104 0.8404 129 0.8391 160 0.8379 199 0.8368 248 0.836 310 0.8352 389 0.8346 487 0.834 610 0.8335 766 0.8328 961 0.8322 1208 0.8318 1518 0.8315 1908 0.8312 2400 0.8309 3019 0.8306 3798 0.8303 4778 0.83 6012 0.8298 7566 0.8297 9522

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