Bearing Capacity Chart -- Delmag Diesel Pile Hammers

Delmag D36-32 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	36912	169	185	198	210	219	228	236	243	249	255	260	265	270	274	279	282	286
53	4.84	38420	173	190	203	215	225	234	241	248	255	261	266	272	276	281	285	289	293
52	5.04	40008	178	195	209	220	230	239	247	255	261	267	273	278	283	288	292	296	300
51	5.25	41675	182	200	214	226	236	245	253	261	268	274	280	285	290	295	299	303	307
50	5.47	43421	187	205	219	232	242	251	260	267	274	281	286	292	297	302	306	311	315
49	5.71	45326	192	210	225	238	248	258	266	274	281	288	294	299	305	309	314	318	323
48	5.97	47390	198	216	231	244	255	265	274	282	289	295	301	307	313	318	322	327	331
47	6.24	49533	203	222	238	251	262	272	281	289	296	303	309	315	321	326	331	335	339
46	6.52	51756	209	228	244	257	269	279	288	296	304	311	317	323	329	334	339	344	348
45	6.83	54217	215	235	251	265	276	287	296	305	312	319	326	332	338	343	348	353	357
44	7.16	56836	221	242	258	272	284	295	304	313	321	328	335	341	347	352	358	363	367
43	7.51	59614	228	249	266	280	292	303	313	322	330	337	344	351	357	362	368	373	377
42	7.88	62551	235	256	273	288	301	312	322	331	339	347	354	360	366	372	378	383	388
41	8.29	65806	242	264	282	297	310	321	331	341	349	357	364	371	377	383	389	394	399
40	8.72	69219	250	272	290	305	319	331	341	351	359	367	375	382	388	394	400	405	410
39	9.19	72950	257	280	299	315	329	341	352	361	370	378	386	393	400	406	412	417	423
38	9.70	76999	266	289	309	325	339	351	363	373	382	390	398	405	412	418	424	430	436
37	10.25	81365	275	299	319	335	350	363	374	384	394	402	411	418	425	432	438	444	449
36	10.84	86048	284	309	329	346	361	374	386	397	406	415	424	431	438	445	452	458	463
35	11.48	91128	294	319	340	358	373	387	399	410	420	429	437	445	453	460	466	472	478

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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