|
IPH250 Hydraulic Hammer has 3 types of hammer rams, which are 1.5 tons, 2.5 tons and 3.0 tons. These hammer rams can be interchange to fit job requirement. It can drive piles up to 250 x 250 mm sq. and diameter 300 mm.
|
| |
| Hammer Details : |
| |
|
1.5 tons |
2.5 tons |
3.0 tons |
| Ram Weight |
kg |
1500 |
2500 |
3000 |
| Drive Cap Weight |
kg |
410 |
410 |
410 |
| Total Hammer Weight |
kg |
3390 |
4390 |
4890 |
| Max. Stroke |
mm |
1200 |
1200 |
1000 |
| Max. Energy |
kNm |
30 |
30 |
30 |
| Blow Rate (blows / min) |
|
| at Min. Stroke |
|
100 |
100 |
100 |
| at 600mm Stroke |
|
60 |
60 |
60 |
| at Max. Stroke |
|
35 |
35 |
35 |
| Working Pressure |
bar |
160 |
160 |
180 |
|
| |
| Hiley's Formula for Set Calculation of R.C. Driven Pile |
| Type of Pile |
200 mm R.C. square pile |
| Working Load of Pile |
45.0 tonnes |
| Est. Pile Lenght |
30.0 meters |
| Driving Hammer |
IPH 250 Hydraulic Hammer |
| Weight of Ram, W |
2.5 tonnes |
| Weight of Pile, P1 |
2.88 tonnes |
| WT. of Driving Cap, P2 |
0.41 tonnes |
| Total WT.P (P1 + P2) |
3.29 tonnes |
| Ram Drop Height, H |
2 feet |
| Coeff. of Rest, N |
0.45 |
| Tem. Compression, C |
0.5 inch (assumed) |
|
| |
| Efficiency factor, f |
= |
W + (P.N2)
W + P |
|
|
|
|
|
|
|
| |
| Ultimate Resistance, R |
= |
W. H. f
S + c/2 |
|
|
| Using factor of safety |
= |
2 times working load of pile, |
|
|
|
|
|
|
|
|
|
| |
| Assume temporary compression, c |
= |
0.5 inch. |
|
|
| set per blow, s |
= |
0.1145 inch. |
|
|
| set/10 blows reqd. |
= |
1.145 inch. or 29 mm. |
|
|
| |
| (Hiley's formula for pile driving is only a guide and should be ascertained on site by load testing the pile) |
.jpg)
.jpg)
