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Table 2.1 Anchor Types
Type	Exterior Pile Shaft Diameter	Pile Wall Thickness	Available Helical Blade Diameter	Helical Blade Thickness
Pile 1 7/8 in.	48 mm / 1.875 in.	3.9 mm / .154 in.	from 228 mm / 8 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 2 3/8 in.	60 mm / 2.375 in.	3.9 mm / .154 in.	from 228 mm / 9 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 2 3/8 in.	60 mm / 2.375 in.	3.9 mm / .154 in.	482 mm / 19 in.	12.7 mm / .500 in.
Pile 2 7/8 in.	73 mm / 2.875 in.	6.3 mm / .250 in.	from 228 mm / 9 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 2 7/8 in.	73 mm / 2.875 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 3 1/2 in.	89 mm / 3.5 in.	6.3 mm / .250 in.	from 228 mm / 9 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 3 1/2 in.	89 mm / 3.5 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 4 1/2 in.	114 mm / 4.5 in.	6.3 mm / ,250 in.	from 228 mm / 9 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 4 1/2 in.	114 mm / 4.5 in.	6.3 mm / ,250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 5 9/16 in.	141 mm / 5.5625 in.	6.3 mm / .250 in.	from 333 mm / 13 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 5 9/16 in.	141 mm / 5.5625 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 5 9/16 in.	141 mm / 5.5625 in.	9.5 mm / .375 in.	from 333 mm / 13 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 5 9/16 in.	141 mm / 5.5625 in.	9.5 mm / .375 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 6 5/8 in.	168 mm / 6.625 in.	6.3 mm / .250 in.	from 381 mm / 15 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 6 5/8 in.	168 mm / 6.625 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 6 5/8 in.	168 mm / 6.625 in.	9.5 mm / .375 in.	from 381 mm / 15 in. to 431 mm / 17 in.	9.5 mm / .375 in.
Pile 6 5/8 in.	168 mm / 6.625 in.	9.5 mm / .375 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 8 5/8 in.	168 mm / 8.625 in.	6.3 mm / .250 in.	431 mm / 17 in.	9.5 mm / .375 in.
Pile 8 5/8 in.	168 mm / 8.625 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 8 5/8 in.	168 mm / 8.625 in.	9.5 mm / .375 in.	431 mm / 17 in.	9.5 mm / .375 in.
Pile 8 5/8 in.	168 mm / 8.625 in.	9.5 mm / .375 in.	from 482 mm / 19 in. to 787 mm / 31 in.	12.7 mm / .500 in.
Pile 10 3/4 in.	168 mm / 10.75 in.	6.3 mm / .250 in.	431 mm / 17 in.	9.5 mm / .375 in.
Pile 10 3/4 in.	168 mm / 10.75 in.	6.3 mm / .250 in.	from 482 mm / 19 in. to 990 mm / 39 in.	12.7 mm / .500 in.
Pile 10 3/4 in.	168 mm / 10.75 in.	9.5 mm / .375 in.	431 mm / 17 in.	9.5 mm / .375 in.
Pile 10 3/4 in.	168 mm / 10.75 in.	9.5 mm / .375 in.	from 482 mm / 19 in. to 990 mm / 39 in.	12.7 mm / .500 in.
Pile 12 3/4 in.	168 mm / 12.75 in.	6.3 mm / .250 in.	from 533 mm / 21 in. to 990 mm / 39 in.	12.7 mm / .500 in.
Pile 12 3/4 in.	168 mm / 12.75 in.	9.5 mm / .375 in.	from 533 mm / 21 in. to 990 mm / 39 in.	12.7 mm / .500 in.

Table 3.1 Allowable Compressive and Tensile Loads for the Proposed Auger-installed Pile in Granular Soil or Silt^{Footnote (1)}
Applied Torque		Allowable Load
Applied Torque		Compression		Tension
N∙m	(lbf·ft)	kN	(lb)	kN	(lb)
678	500	20	4 500	12	2 700
1 017	750	23	5 175	15	3 375
1 356	1 000	27	6 075	18	4 050
1 695	1 250	30	6 750	20	4 500
2 034	1 500	33	7 425	23	5 175
2 373	1 750	37	8 325	26	5 850
2 712	2 000	40	9 000	29	6 525
3 051	2 250	44	9 900	32	7 200
3 390	2 500	47	10 575	34	7 650
3 728	2 750	51	11 475	37	8 325
4 067	3 000	54	12 150	40	9 000
4 406	3 250	57	12 825	42	9 450
4 745	3 500	61	13 725	45	10 125
5 084	3 750	64	14 400	48	10 800
5 423	4 000	68	15 300	51	11 475
5 762	4 250	71	15 975	54	12 150
6 101	4 500	74	16 650	57	12 825
6 440	4 750	78	17 550	59	13 275
6 779	5 000	81	18 225	62	13 950
7 457	5 500	88	19 800	67	15 075
8 135	6 000	95	21 375	72	16 200

Table 3.2 Allowable Compressive and Tensile Loads for the Proposed Auger-installed Pile in Cohesive Soil^{Footnote (1)}
Applied Torque		Allowable Load
Applied Torque		Compression		Tension
N∙m	(lbf∙ft)	kN	(lb)	kN	(lb)
1 017	750	7	1 574	3	674
1 356	1 000	10	2 248	5	1 124
1 695	1 250	13	2 922	8	1 798
2 034	1 500	16	3 597	11	2 473
2 373	1 750	20	4 496	14	3 147
2 712	2 000	23	5 171	16	3 597
3 051	2 250	26	5 845	19	4 271
3 390	2 500	29	6 519	22	4 946
3 728	2 750	33	7 419	24	5 395
4 067	3 000	36	8 093	27	6 070
4 406	3 250	39	8 767	30	6 744
4 745	3 500	42	9 442	33	7 419
5 084	3 750	45	10 116	35	7 868
5 423	4 000	49	11 015	38	8 543
5 762	4 250	52	11 690	41	9 217
6 101	4 500	55	12 364	44	9 891

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