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Unformatted text preview: CE467L Geotechnical Engineering Spring 2010 Homework 2 Due: Tuesday, February 2, 2010 Answer the following questions and/or complete the following problems. Problems 1 through 4 are “phase” problems. Do not merely use the formulas in the book to complete these problems! Rather, determine quantities associated with the various phases in the soil, and calculate the requested quantities directly from the values in the phase diagram. A completed phase diagram must be included in your solution! 1. Complete Problem 1.3 in Craig. Recall, y = 9.81 k N /m 3 . 2. Complete Problem 1.4 in Craig. 3. For a given clay soil, the void ratio is 0.5, the degree of saturation is 70 %, and G = 2.75. Determine: (a) w, (b) n, (c) p, and (d) Psat. 4. Soil has been compacted in an embankment at a (total) density of 2.15 Mg/rn 3 and water content of 12%. Assume G = 2.65. Calculate the void ratio, dry density and degree of saturation. 5. The following results were obtained fro m a laboratory compaction test (the volume of the mold was 943.9 cm 3 and G = 2.64): Trial 1 2 3 4 5 6 M assofw etsoil(g) 1745...
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This note was uploaded on 09/13/2010 for the course CE 467L taught by Professor Rechenmacher during the Spring '10 term at USC.
- Spring '10
- Geotechnical Engineering