. Deep ocean cable burial concept development. Cables, Submarine; Marine engineering; Civil engineering. Case 1: Trencher rotating in conventional (upmilling) direction UP â ^TOT ^b "^" F, .^ N^ lift b = (-864 lb)(3.5) sin 60' (16 lb)(3.5) UP -2,675 lb FWD -F N cos TOT b (864 lb)(3.5)(cos 60 ) FWD â 2,620 lb Case 2: Trencher rotating in forward direction (climbmilling) F = F N sin UP TOT b lift b = (864 lb) (3.5) sin 60 - (16 lb)(3.5) F = 2,560 lb UP Fâ^ = Fâ^â N, cos FWD TOT b ^FWD = 2,620 1b EXCAVATING WHEEL The same parameters and assumptions apply as in the chain-driven bucket t
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