Design Analysis and Observed Performance of a Tieback Anchored Pile Wall in Sand

Table 7

The partial factor combinations for three design approaches.

Design approach	Combination
DA1	Except for the piles and anchors	Combination 1: A1“+”M1“+”R1
		Combination 2: A2“+”M2“+”R1
	For the piles and anchors	Combination 1: A1“+”M1“+”R1
		Combination 2: A2“+”(M1 or M2)“+”R4
DA2	Combination: A1“+”M1“+”R2
DA3	Combination: (A1 or A2) “+”M2“+”R3