Question: Estimate the group efficiency of a 4 6 pile group, consisting of 400 mm diameter concrete piles at 1.2 m center-tocenter spacing using a.

Estimate the group efficiency of a 4 × 6 pile group, consisting of 400 mm diameter concrete piles at 1.2 m center-tocenter spacing using

a. The converse-labarre equation

b. The los angeles group action equation

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