2500 meter ultra deep water marine hydraulic piling hammer has successfully completed its sea trial in the South China Sea
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06
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2023
On June 22nd to 24th, the 2500 meter ultra deep water marine hydraulic pile driver, developed by China Machinery Forging and Pressing Jiangsu Co., Ltd., successfully conducted sea trials in the South China Sea. The sea trial site is the Lufeng 8-1 oilfield in the eastern part of the South China Sea, which is coordinated by the "Blue Whale" crane ship, known as the "world's first single crane", and the "Yongyu Large Piece" crane.

With the collaboration and witness of China National Offshore Oil Engineering Corporation, various research and testing units, and China Classification Society, the sea trial process was smooth and efficient, and the test data fully met the project requirements. The successful completion of the sea trial marks the conclusion of various tasks and lays a solid foundation for comprehensive acceptance.

The total length of the ultra deep sea hydraulic pile driver is 16.1 meters, with a maximum diameter of 3.85 meters. It weighs a total of 165 tons in the air, with a frequency of 25 blows per minute and a striking energy of 450 kJ. The operating depth can reach 2500 meters.
The pile hammer utilizes high-precision sensors to monitor the driving status in real time, and utilizes attitude sensors and video monitoring systems to monitor and perceive the posture and position of the pile hammer in real time, allowing operators to have a comprehensive view of underwater construction.
The pile hammer utilizes a generator, air compressor, and umbilical cable winch to operate in coordination, ensuring the smooth progress of the sea trial. The pile hammer's pressure resistant and waterproof underwater power and control system break through the deep-sea water pressure limit. Two 500 kW generators are used to transmit power and signals to the 2500 meter deep sea through a 3000 meter long umbilical cable.
When using a pile hammer to drive a pile, hydraulic power is transmitted to drive the 33 ton "hammer core" to move up and down in a reciprocating motion. With each "hammering", the hammer core impacts and replaces the pile at a speed of 6 meters per second, transmitting the impact force to a 100 meter long steel pile for implantation into the seabed.

The ultra deep sea hydraulic pile driver has filled a gap in the core equipment technology of China's deep-sea development.
At this point, CFM Forging has achieved a significant breakthrough in the key "bottleneck" technology research and engineering application of deep-sea and offshore ultra large hydraulic pile hammers, and has achieved important results in the equipment and software and hardware systems of deep-sea and offshore hydraulic pile hammers.

In the future, China National Machinery Industry Corporation will focus on creating original technology sources for its main business, keeping in mind the importance of the country, exporting national treasures, further enhancing research and development capabilities and verifying supporting conditions, and continuously providing strong support for the high-quality development of major equipment in China's offshore industry.
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