1800 Rpm Vibroflotation Technique For Offshore Stone Column Construction
China BVEM 180kW bottom feed vibroflot equipment for offshore stone column construction
| The Bottom Feed Electrical Vibroflot Spec. | |
| Type | BJZC-BFS-400-180 |
| Power(kW) | 180 |
| Voltage(V) | 380 |
| Frequency(Hz) | 50 |
| Rotation speed(rpm) | 1200-1800 |
| Working pile diameter (mm) | 900-1200 |
| System pressure(bar) | 6 |
| Vibration force(kN) | 200-300 |
| Hopper volume(m³) | 1.2 |
| Pipe diameter(mm) | DN250 |
| Control type | Inverter Control |
| Cooling-down method | Circulating water cooling |
| 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) |
| Extension tube size L/W/H(mm) | 12000×300×600 |
| Weight (Standard part+Extension tube) (ton) | 9+3×n |
Characteristic (Bottom feed vibroflotation device barge type)
Bottom feed vibroflotation device barge type effectively solves the construction problems faced by underwater Vibroflotation Gravel Pile Construction in the following aspects:
a) Construction platform problem: underwater construction needs to form construction space through cofferdam construction, otherwise it is necessary to set up construction platform or configure construction barge on the water surface.
b) Supporting equipment: due to the particularity of underwater construction, it is necessary to configure a large number of complex special supporting tools and equipment suitable for underwater construction.
c) The process of pile and stone delivery under water must be an effective problem. In the previous underwater construction cases using the traditional vibroflotation method, due to the existence of the above problems, the vibroflotation construction cost is higher, the efficiency is low, and the construction quality is difficult to guarantee.
Application
HongKong Immigration artificial island project of Hongkong- Zhu Hai-Macao Bridge
Main equipment : bottom feed vibroflot, ship frame,materials ship and excavator.
Construction : more than 46000 piles have been formed, total 1.1 million linear meters
Tiba Bay New Container Port Project in Timor Leste
Construction : from - 15m underwater, max working depth 26m, pile diameter 1m, more than 14,000 piles have been formed, adopted Automatic pile positioning system(RTK system)
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