In designing a pile for lateral loads, there are two cases for pile head: one is free head and other is fixed head. There is a great economy in designing a pile with fixed head. But I didn't see anywhere criteria for considering a pile fixed at head. Any help in finding a reference that explains the conditions for free and fixed head is highly appreciated.
Sincerely yours,
Siamak Malakpour Estalaki
PhD student of School of Civil Engineering, Faculty of Engineering, Univ. of Tehran, Enghelab St, Tehran, Iran.
Tel: 00989113372455
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