1. SOIL DESIGN REVIEW KNOWLEDGE BASE REQUIRED: SOIL MECHANICS

2. REVIEW OF SOIL MECHANICS VERTICAL STRESSES LATERAL STRESSES BASIC SOIL MECHANICS REVIEW: = UNIT WEIGHT OF SOIL (PCF, KN/m 3 ) = SATURATED UNIT WEIGHT OF SOIL = BOUYANT UNIT WEIGHT OF SOIL = UNIT WEIGHT OF WATER(62.4PCF,9.81 KN/m 3 ) SOIL DESIGN REVIEW

3. BASIC SOIL MECHANICS REVIEW: = - VERTICAL STRESSES: = VERTICAL STRESS (PSF, TSF,KN/m 2 ) CALCULATE TOTAL (TOTAL STRESS) Ka=0.5 SOIL DESIGN REVIEW

4. BASIC SOIL MECHANICS REVIEW: VERTICAL STRESSES at 8 feet: EFFECTIVE VERTICAL STRESSES at 8’: SOIL DESIGN REVIEW

5. BASIC SOIL MECHANICS REVIEW: LATERAL TOTAL STRESSES at 3 feet: LATERAL STRESSES at 8 ft.(Calculating water): SOIL DESIGN REVIEW

6. BASIC SOIL MECHANICS REVIEW: LATERAL FORCE: SOIL DESIGN REVIEW

7. BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: SOIL DESIGN REVIEW

8. BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: TO FIND RESULTANT SUM FORCES: R TO FIND RESULTANT LOCATION TAKE MOMENT:y SOIL DESIGN REVIEW

9. BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: TO FIND RESULTANT SUM FORCES: R TO FIND RESULTANT LOCATION TAKE MOMENT:y 236.25# 787.5# NOTE: 360+780= 1140# 1140# SOIL DESIGN REVIEW

10. BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: R=236.25+787.5+1140=2163.75# LATERAL ARM: SOIL DESIGN REVIEW

11. BASIC SOIL MECHANICS REVIEW: LATERAL FORCES: RESULTANT 2.4’ 2163.75# 6.0’ 2.5’ 1.67’ 787.50#s 236.25#s SOIL DESIGN REVIEW 1140#s