10.11 Determine the factor of safety against bottom heave for the braced cut described in Problem 10.9. Use Eq. (10.15). The length of the cut is 12.5. ex(1 B' cN 1 + 0.22 FS = (10.15) H B' H

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10.11

Extracted text: 10.11 Determine the factor of safety against bottom heave for the braced cut described in Problem 10.9. Use Eq. (10.15). The length of the cut is 12.5. ex(1 B' cN 1 + 0.22 FS = (10.15) H B' H


Extracted text: 10.9 Redo Problem 10.7 assuming that c = 60 kN/m². 10.7 Refer to Figure P10.7. Given: y = 17.5 kN/m², c = 30 kN/m², and center-to- center spacing of struts in the plan = 5 m. Draw the earth-pressure envelope and determine the strut loads at levels A, B, and C 6 m A 3 m · 30 kN/m² B y = 17.5 kN/m³ 2 m C 1 m