Powerful bottom feed vibroflot used for stone column construction
in offshore project BJZC-V400-180
| The Bottom Feed Electrical Vibroflot Spec. |
| Type | BJZC-BFS-400-180 |
| Working pile diameter (mm) | 900-1200 |
| System pressure(bar) | 6 |
| Vibration force(kN) | 200-300 |
| Hopper volume(m³) | 1.2 |
| Control type | Inverter Control |
| Air flow rate(m³/min) | 10 |
| Vibrator size L/W/H(mm) | 2600×600×700 |
| The bin size L/W/H(mm) | 4800×1300×(1300-1500) |
vibroflot profile
The vibroflot barrel and the motor housing are made of high
strength forged steel
The motor coil adopts high temperature aging film envelop, long
service life and good insulation effect
Unique circulating water cooled motor structure, good heat
dissipation with high efficiency
Both vibroflot and motor are imported with FAG original bearing
Double-deck vibrating head design with good resistance, easy to
replace
Unique bearing oil lubrication, further improve bearing life
Profile of Bottom Feed Vibroflotation:
As a extension of vibroflotation technique, bottom feed method
created a larger range of vibroflotation application. In terms of
its feature, vibroflotation can be conducted to treat the
foundation in those projects even under following situation:
1.Silty or silty clay soil with undrained shearing strength less
than 20Kpa
2,Underwater of offshore stone column construction
3.Projects under the strict controlling of pile diameter
4.Place where the water resource are used in limitation
5.Place where the waste water are strictly prohibit to discharge
Bottom feed method vbroflotation construction need a special
vibroflot equipment with bottom feed system to realize. This
professional equipment are commonly composed of :
1. Electrical or hydraulic vibroflot system ( vibroflot, damper,
extension tube and electrical cabinet )
2. Feeding system ( feeding tube , damper )
3. Stock bin system ( double bin or single bin )
4. Material supply system ( lifting hopper )
5. Controlling system ( Valve controlling , air pressure
controlling, material level controlling )
Due to the diversity of engineering condition, bottom feed
vibroflot need to be customized for production.
BVEM profile (Beijing vibroflotation engineer machinery co.,ltd)
China first use of 75KW vibrator for the 30-meter depth sand soil
treatment(three gorges project)
China first use of hydraulic vibrator for the treatment of the
240-meter chimney foundation
China first use of hydulic vibrator for the treatment of 32m depth
foundation of hydraulic power station
The first one in China who treated the base of oil storage tank
with a diameter of more than 60m by vibroflotation method
