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F'igure 3.3. Chart for Estim¡ting Composite Modulus of Subgrade Reaction, k-, Assumlng a' Semi-Inflnite Subgrade Depth. (For practlcal purposes, a semi-inflnite depth isconsidered to be greater than l0 feet below the surface of the subgrade.)

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Figure 3.6. Correction of Effective Modulus of Subgrade Reaction for Fotential l¡ss of Subbase Snrpport (d)

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