Design of Compacted Clay Embankments for Improved Stability and Settlement Performance : Interim Report

Table P^Se 2. 1 Expressions for the Compactive Effort of Various Types of Compactors (after Selig* 1971) 15 3.1 Three-Diaiensional Factor of Safety vs. 1^-^H ratio -Example 3.1 3 4 UU Mohr-Coulomb Parameters of Unsaturated St. Croix Clay 18 2.2 Values of f and k for use inTable2. 1 and Equation 2.6 (after Selig.1971) 2.3 Specifications of Compactors Used in Purdue's Embankment Performance Project (after Terdich.1981) 21 2.4 Calculations -Examples 2.1 and 2.2 23 48 3.2 Factor of Safety for Values of Sides lope and X (after Boutrup.1977) 67 3.3 UU Shear Strength of Compacted St. Croix Clay (after Weitiel, 1979) 75 80 3 5 Depth to Zone of Positive Pore Pressure Development 88 3.6 Intrinsic Simplified Janbu Factors of Safety of Compacted St. Croix Clay Embankments Using Laboratory Compacted CU Shear Strength 90 3.7 Sideslope Factor of Safety Calculation -Example 3.3 *5>9 3. 8 Factor of Safety Calculated Based on Height Criterion -Example 3. 4 104 3.9 Material Parameters -Example 3.5 117 3.10 Probability of Failure vs. Variability of Cohesion -Example 3. 5 4. 1 Stress Change Beneath Embankment -Figure 4.3 4.2 Settlement vs. Number of Strata -Example 4. 1 ., .4. 3 Settlement and Differential Settlement Along Profile of Embankment -Example 4. 1 4.4 Calculation of Correction Factor \x -Example 4.2 4.5 Percent Consolidation of Clay Layer -Example 4.