Question: A hydraulic sand fill is tested using a falling head per-mea-meter that has a tube diameter of 1.27 cm (0.50 in.), sample diameter of 10.2

A hydraulic sand fill is tested using a falling head per-mea-meter that has a tube diameter of 1.27 cm (0.50 in.), sample diameter of 10.2 cm (4.0 in.), sample length of 20.4 cm (8.0 in.), and a starting head of 91 cm (35.8) in. The data collected are heads vs times and are given in Table 7.6.

Is this fill likely to be satisfactory? Justify youranswer.

Table 7.6 Data Head (in.) 35.8 29.9 16.2 91.0 76.0 41.1 135

Table 7.6 Data Head (in.) 35.8 29.9 16.2 91.0 76.0 41.1 135 7.3 4.9 12.4 18.5 225 10.8 27.4 (cm) Time (s) 45 90 180

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