Bearing Capacity Chart -- Delmag Diesel Pile Hammers

Delmag D16-32 Single Acting Diesel Pile Hammer

Blows	Piston	Hammer	Bearing Capacity ( tons ) for a Pile Set ( blows / in ) of:
Per Min.	Stroke (ft)	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
54	4.65	16405	96	107	116	123	130	135	140	145	149	153	157	160	163	166	169	172	174
53	4.84	17076	99	110	119	127	133	139	144	149	153	157	161	164	168	171	173	176	179
52	5.04	17781	102	113	122	130	137	143	148	153	157	162	165	169	172	175	178	181	183
51	5.25	18522	105	116	126	134	141	147	152	157	162	166	170	173	177	180	183	186	188
50	5.47	19298	108	120	130	138	145	151	157	162	166	170	174	178	181	185	188	190	193
49	5.71	20145	112	124	133	142	149	155	161	166	171	175	179	183	186	190	193	196	198
48	5.97	21062	115	128	138	146	153	160	166	171	176	180	184	188	192	195	198	201	204
47	6.24	22015	119	131	142	150	158	165	171	176	181	185	190	193	197	200	204	207	210
46	6.52	23003	123	136	146	155	163	169	175	181	186	191	195	199	203	206	209	212	215
45	6.83	24096	127	140	151	160	168	175	181	186	192	196	201	205	208	212	215	219	222
44	7.16	25260	131	144	155	165	173	180	186	192	197	202	207	211	215	218	222	225	228
43	7.51	26495	135	149	160	170	178	185	192	198	203	208	213	217	221	225	228	232	235
42	7.88	27801	140	154	166	175	184	191	198	204	209	214	219	224	228	231	235	239	242
41	8.29	29247	145	159	171	181	190	197	204	210	216	221	226	231	235	239	242	246	249
40	8.72	30764	150	165	177	187	196	204	211	217	223	228	233	238	242	246	250	254	257
39	9.19	32422	155	170	183	193	202	210	218	224	230	236	241	245	250	254	258	262	265
38	9.70	34222	161	176	189	200	209	218	225	232	238	243	249	254	258	262	266	270	274
37	10.25	36162	166	183	196	207	217	225	233	240	246	252	257	262	267	271	275	279	283
36	10.84	38244	173	189	203	214	224	233	241	248	254	260	266	271	276	280	284	288	292
35	11.48	40501	179	196	210	222	232	241	249	256	263	269	275	280	285	290	294	298	302

Calculates bearing capacities based upon FHWA modified Gates formula:
Ru = 0.5 [ 1.75 √E ( log 10N ) - 100 ]
where
Ru = Driven bearing capacity of the pile in tons
N = Number of hammer blows ber inch
E = Energy developed by the hammer per blow in ft-lbs

Company Headquarters	Branch Offices
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