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Bearing Capacity Chart - Delmag Diesel Pile Hammers

Delmag D19-42 Single Acting Diesel Pile Hammer
Bearing Capacity (tons) 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
54
4.65
18670
106
117
127
135
142
148
153
158
163
167
171
174
178
181
184
186
189
53
4.84
19433
109
121
130
138
145
152
157
162
167
171
175
179
182
185
188
191
194
52
5.04
20236
112
124
134
142
149
156
161
167
171
176
180
183
187
190
193
196
199
51
5.25
21079
115
128
138
146
154
160
166
171
176
180
184
188
192
195
198
201
204
50
5.47
21962
119
131
142
150
158
164
170
176
181
185
189
193
197
200
203
206
209
49
5.71
22926
122
135
146
155
162
169
175
181
186
190
194
198
202
206
209
212
215
48
5.97
23970
126
139
150
159
167
174
180
186
191
196
200
204
208
211
215
218
221
47
6.24
25054
130
144
155
164
172
179
185
191
196
201
206
210
214
217
221
224
227
46
6.52
26178
134
148
159
169
177
184
191
196
202
207
211
215
219
223
227
230
233
45
6.83
27422
139
153
164
174
182
190
196
202
208
213
217
222
226
230
233
237
240
44
7.16
28747
143
157
169
179
188
195
202
208
214
219
224
228
232
236
240
243
247
43
7.51
30153
148
162
174
185
193
201
208
214
220
225
230
235
239
243
247
250
254
42
7.88
31638
152
168
180
190
199
207
214
221
227
232
237
242
246
250
254
258
261
41
8.29
33284
158
173
186
196
206
214
221
228
234
239
245
249
254
258
262
266
269
40
8.72
35011
163
179
192
203
212
221
228
235
241
247
252
257
262
266
270
274
277
39
9.19
36898
169
185
198
210
219
228
236
243
249
255
260
265
270
274
278
282
286
38
9.70
38946
175
191
205
217
227
235
243
251
257
263
269
274
279
283
287
292
295
37
10.25
41154
181
198
212
224
234
243
252
259
266
272
278
283
288
292
297
301
305
36
10.84
43523
187
205
220
232
242
252
260
268
275
281
287
292
297
302
307
311
315
35
11.48
46092
194
213
227
240
251
261
269
277
284
291
297
302
308
312
317
322
326

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 per inch
E = Energy developed by the hammer per blow in ft-lbs

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