Bearing Capacity ChartDelmag Diesel Pile Hammers

Delmag D62-22 Single Acting Diesel Pile Hammer

Bearing Capacity (kips) for a Pile Set (blows/in) of:

Blows Per Min.	Piston Stroke (ft)	Hammer Energy (ft-lbs)	2.0	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0	6.5	7.0	7.5	8.0	8.5	9.0	9.5	10.0
53	5.20	70928	506	552	588	620	647	671	692	711	729	745	760	774	787	799	811	822	832
52	5.40	73656	518	564	602	633	661	685	707	727	745	761	776	791	804	816	828	839	850
51	5.60	76384	529	576	614	647	675	700	722	742	760	777	792	807	820	833	845	857	867
50	5.80	79112	540	588	627	660	689	714	736	757	775	792	808	823	837	850	862	873	884
49	6.00	81840	551	600	639	673	702	728	751	771	790	808	824	839	853	866	878	890	901
48	6.30	85932	567	617	658	692	722	748	772	793	812	830	847	862	876	890	903	915	926
47	6.60	90024	583	634	676	711	741	768	792	814	834	853	869	885	899	913	926	938	950
46	6.80	92752	593	645	687	723	754	781	805	828	848	866	883	899	914	928	942	954	966
45	7.20	98208	614	667	710	747	779	807	832	854	875	894	912	928	944	958	972	985	997
44	7.50	102300	628	682	727	764	797	825	851	874	895	915	933	950	965	980	994	1007	1019
43	7.80	106392	643	698	743	781	814	844	870	893	915	935	953	970	986	1001	1016	1029	1042
42	8.20	111848	661	718	765	804	838	868	894	919	941	961	980	997	1014	1029	1044	1057	1071
41	8.60	117304	680	738	785	825	860	891	918	943	966	987	1006	1024	1041	1056	1071	1085	1099
40	9.10	124124	702	762	811	852	888	919	947	973	996	1018	1038	1056	1073	1090	1105	1119	1133
39	9.50	129580	720	781	831	873	909	941	970	996	1020	1042	1062	1081	1099	1115	1131	1146	1160
38	10.00	136400	741	804	855	898	935	968	998	1025	1049	1072	1093	1112	1130	1147	1163	1178	1193
37	10.60	144584	766	830	883	927	966	1000	1031	1058	1083	1106	1128	1148	1166	1184	1200	1216	1231
36	11.20	152768	790	856	910	956	996	1031	1062	1090	1116	1140	1162	1183	1202	1220	1237	1253	1268
35	11.80	160952	813	881	937	984	1025	1061	1093	1122	1148	1173	1195	1216	1236	1255	1272	1289	1304
34	12.50	170500	840	910	967	1016	1058	1095	1128	1158	1185	1210	1233	1255	1275	1294	1312	1329	1345

Calculates bearing capacities based upon FHWA modified Gates formula:
Ru = [ 1.75 √E ( log 10N ) - 100 ]
where
Ru = Driven bearing capacity of the pile in kips
N = Number of hammer blows per inch
E = Energy developed by the hammer per blow in ft-lbs