Description:
Vibratory Pile Hammer Dzj-400,Used Vibro Hammer,
Electric Vibro Hammer ,
Pile Drive Hammer,
DZJ-400 is one of the most popular size vibratory hammer (orpiling hammer) we had in our product line.
Specification:
| Moter power(Kw): | 400 |
| EccentricMoment(Nm) : | 3180 |
| Drivingforce(Kn) : | 0-3250 |
| Speed(r/min): | 0-960 |
| Amplitude(Mm): | 0-12.3 |
| Maximum LinePull(Kn) : | 850 |
| Length(m) : | 2.3 |
| Width(m) : | 1.75 |
| Height(m) : | 3.9 |
| Weight(kg): | 22000 |
Project situation:
Model:DZJ-400
Project:Maanshan Changjiang River Bridge
Users: CCCC
Quantity:1 sets
DZJ-400 was used on the north bridge tower and embankment-crossingbridge approach.54pcs filling piles with the diameter 2.5M and thedriving depth 28M-30M have been used on the north bridge tower.
The coating of the geological feature of this area is siltclay.
And its stratum are the strong weathered rock and the slightlyweathered rock.
Vibratory hammer is designedas per resonance theory.When the pile forcing vibratory isconsistent with the soil vibratory frequency, the soil will occurresonance phenomenon.Meanwhile , the largest amplitude, sufficientvibratory frequency and acceleration will break the cohesionbetween the soil and pile.In that case the pile will disintegratefrom the soil in a short time.Pile-sinking resistance especiallyside resistance will be reduced very quickly. Then the pile sinksunder the gravity.Depend on reducing the friction between the pileand the soil to sinking the pile.So it is effective to extract thepile only using a little more force than the pile self weight.As aresult , the vibratory hammer develops rapidly and broadly used in pile-driving and pile-pullingconstruction.
