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Deeply cultivating the South China Sea: "Huaxi 5000 Ship" Mingyang Yangjiang Shapa 300MW Offshore Wind Power Project's first successful success

Deeply cultivating the South China Sea: "Huaxi 5000 Ship" Mingyang Yangjiang Shapa 300MW Offshore Wind Power Project's first successful success

On April 18, 2020, the commander-in-chief gave an instruction: "Hydraulic hammer control room, stop hammer". The first single pile sinking of the Mingyang Yangjiang offshore wind power project reached the elevation, and the final verticality of the sinking was controlled at 0.27‰, which met the design requirements. It was highly praised and highly praised by the owner unit Mingyang Intelligent and the general contractor Poly Changda Engineering Co., Ltd. Recognized. The Yangjiang sea area has sufficient wind resources, but the marine hydrological conditions are poor, the construction window is short, the preliminary preparation tasks are cumbersome, and the time is tight. The "Huaxi 5000" wind power project team and the Poly Changda wind power project team are closely connected to communicate effectively and optimize the construction plan , To do a good job in all work and safety production, laying a solid foundation for Mingyang Yangjiang’s first success, and at the same time demonstrating the strong combat effectiveness of our "Huaxi 5000 Fleet" in the field of wind power foundation piles. Mingyang Yangjiang Shapa 300MW offshore wind farm scientific research demonstration project site is located in the sea area near Shapa Town, Yangxi County, Yangjiang City, Guangdong Province. It is contracted by Poly Changda Engineering Co., Ltd. The number of single pile foundations is 43, and the pile diameter is 7.5. —8.8m, the elevation of the pile top is +18.00m, the pile length is 96.68-104.7m, and the pile weight is 1429.38-1670t. The project will play an important role in promoting energy conservation and emission reduction in Guangdong Province and optimizing the energy structure. The local Yangjiang government also attaches great importance to it. The start of the Mingyang Yangjiang Wind Power Project marks another milestone in China's offshore wind power by Huaxi Offshore. The technology of lifting foundation piles with single hooks is more mature and the construction efficiency is higher. This has laid the foundation for Huaxi Offshore to continue to cultivate the South China Sea. , Even in the entire offshore wind power construction in China is of great significance.

04-18

2020

Deeply cultivating the South China Sea: "Huaxi 5000 Ship" Mingyang Yangjiang Shapa 300MW Offshore Wind Power Project's first successful success
Deeply cultivating the South China Sea: "Huaxi 5000 Ship" Mingyang Yangjiang Shapa 300MW Offshore Wind Power Project's first successful success
The "Huaxi 5000" ship successfully leaves the dock and is ready to set sail for Zhuhai Jinwan

The "Huaxi 5000" ship successfully leaves the dock and is ready to set sail for Zhuhai Jinwan

On January 16, 2020, "Huaxi 5000" was successfully undocked at the Guangdong Shipyard Wenchong Shipyard. In the short period of only 7 days for docking repairs, the company's maintenance engineers actively coordinated with the joint efforts of all the crew to overcome disadvantages such as tight docking time, heavy tasks, and numerous maintenance projects. Everyone worked overtime to complete the tasks on time. Each maintenance item of the docking repair shall be tracked and accepted throughout the entire process, and the daily maintenance project plan shall be arranged to achieve seamless connection, and each maintenance item shall be completed with quality and quantity to ensure the smooth release of the "Huaxi 5000" ship. The new year is coming, the "Huaxi 5000" ship has a new look and is ready to set sail for the Zhuhai Jinwan Wind Farm. Will be put into the construction site quickly to ensure the smooth progress of production tasks. In the new year, under the leadership of the group company, I wish Huaxi Offshore to get better and better and create more glories in the offshore wind power industry!

01-16

2020

The "Huaxi 5000" ship successfully leaves the dock and is ready to set sail for Zhuhai Jinwan
The "Huaxi 5000" ship successfully leaves the dock and is ready to set sail for Zhuhai Jinwan
The foundation project of Yangjiang's first wind power jacket rock-socketed station was a complete success

The foundation project of Yangjiang's first wind power jacket rock-socketed station was a complete success

On August 10, 2019, the construction of the foundation piles for the first station of the Yudean Yangjiang Shapa Offshore Wind Power Project, which was jointly contracted by Huaxi Offshore Engineering and Guangdong Thermal Power, was successfully completed. The project consists of 6 wind turbine stations and 1 sea riser. The station foundation construction is composed of four-pile jacket form for the fan foundation. Since the construction of the first machine position of the project, there have been various conditions such as pile sinking and hammer rejection, strong wind surge, typhoon disturbance, etc., and the huge undulating geological environment has appeared in the narrow construction area. Repeated expert meetings and repeated PDA monitoring have been verified. The performance test confirmed the feasibility of our company's timely adjustment of the construction process. Through the implementation of advanced drilling, the original design of the direct piling process was changed in time, and the drilling process was used to adjust the construction. According to the drilling rig selection, the originally designed direct pile driving directional positioning platform was reinforced and transformed, and all the work from drilling rig selection, platform transformation design and force calculation, external unit review, expert review to on-site implementation was completed in one month. In order to reduce the time for cutting lifting ears at sea, the engineering pile adopts inner lifting ears, and the inner lifting ears must be cut off for drilling construction. However, the inner lifting ears have been 3 meters into the mud surface when the pile is sinking and the hammer is rejected. The project department also uses diamond wire chainsaws. It is applied to the internal cutting of underwater piles, and the final cutting accuracy meets the accuracy requirements of drilling construction. Since the two diagonal piles in this machine position had plunged into the mud 38 meters and 44 meters respectively when the hammer was rejected, the pile tops were already underwater, and the drilling construction could not be carried out. The project department innovatively used the form of an external protective tube to seal and stop the water to achieve the drilling construction. Finally, through practice, the process was successful. The drilling of the first machine position began on June 26, 2019. Through the careful organization and unremitting efforts of the project department, it was completed on August 7, 2019 under the premise of two typhoons. Under such harsh sea conditions and the complex geological environment caused major process changes, Huaxi Offshore completed the four foundations of the first machine position on August 10, 2019 through continuous technological innovation and careful construction organization. In the pile sinking construction, the control indexes of the foundation pile meet the design requirements. The successful implementation of the foundation piles of this machine position is the embodiment of Huaxi Offshore Engineering's construction organization ability and technical level in the offshore waters with complex geological environment. It points out the direction for the process selection and design optimization of the subsequent machine position, and provides the follow-up construction of the project. Valuable experience. It fully embodies the spirit of Huaxihai's workers to defy hardships and obstacles, and to advance bravely, and once again strengthen Huaxihai's confidence in taking root in the offshore wind power market.

08-10

2019

The foundation project of Yangjiang's first wind power jacket rock-socketed station was a complete success
The foundation project of Yangjiang's first wind power jacket rock-socketed station was a complete success
The world's longest single pile successfully entered the sea

The world's longest single pile successfully entered the sea

On July 23, the Yangxi Shapa 300MW offshore wind power project constructed by Huaxi Offshore Engineering Co., Ltd. successfully completed the world’s longest single-pile sinking operation. This is another major breakthrough of Huaxi Offshore Engineering in the field of wind power market construction. The 12th pile built this time is 108.53 meters long and weighs 1,720 tons, making it the longest single wind power pile in the world. The 33 monopile foundation construction tasks of the Three Gorges Yangxi Shapa 300MW offshore wind farm project undertaken by Huaxi Offshore include the world's longest, heaviest and largest diameter monopile, which is a veritable heavyweight offshore wind power project. The project department adopted excellent construction organization design and made full preparations for the construction of each pile. The project department first stabilized the piles with the aid of the pile stabilization platform. During the pounding process, they stopped hitting every 50 cm, measured the verticality, and adjusted it in time. The verticality of the 12th pile was controlled at 1.12‰, and the construction task was completed with high quality and high precision. The construction of the No. 12 single pile foundation was successfully completed, which was recognized and trusted by the owners of the Three Gorges Project and the general contractor of the Three Airlines, laying a strong foundation for subsequent project operations. After the completion of the project, the net on-grid power will be about 83 billion watt-hours per year, which can save about 260,000 tons of coal consumption, which is of great significance for solving the problem of insufficient coal resources in Guangdong Province, alleviating the pressure on environmental protection, and promoting green economic development.

07-25

2019

The world's longest single pile successfully entered the sea
The world's longest single pile successfully entered the sea
The first pile of Yangjiang Wind Field was settled, and the first battle of Huaxi Five Thousand was won.

The first pile of Yangjiang Wind Field was settled, and the first battle of Huaxi Five Thousand was won.

In response to the national offshore wind power construction and development, especially the construction goal of 30GW offshore wind power in Guangdong Province, to overcome the harsh sea conditions of Yangjiang and the surrounding waters, such as high waves, large swells, and sudden climate changes, our company made strategic deployment in advance, innovated construction technology, and adopted Independently researched and developed jacket type pile holding device supporting marine construction ship "Huaxi 5000", reducing supporting auxiliary ships and reducing external influence factors, adopting single hook three-point pile lifting method, and successfully completed the single pile sinking task of the first wind turbine foundation in Yangjiang waters , Demonstrating the comprehensive strength of Huaxi Offshore Engineering's offshore engineering across the deep sea and connecting the world. Our company is the first large-scale use of large-scale single pile in China invested and constructed by Three Gorges New Energy (pile length 108m, pile weight nearly 1800t, diameter 7.5-9m) and it is also the largest single pile foundation under construction at home and abroad. The construction site of the project is located in the area with high incidence of typhoon in the South China Sea. There is sudden strong convective weather, complex geological and sea conditions, harsh operating environment, narrow construction area of ​​the project, and intensive ship crossing operations, all of which increase the difficulty of project construction. The "Huaxi 5000" project department finally overcome the natural environment and technical barriers and successfully completed the project, providing a guarantee for the subsequent wind farm construction to improve the efficiency and safety of offshore wind power foundation pile construction. The construction of the first 5# large-scale single-pile foundation pile sinking for the offshore wind power project in Yangxi Shapa, Yangjiang City, Guangdong Province has achieved a perfect success, which reflects the professionalism of the "Huaxi 5000" construction under complex sea conditions. Practice has proved that Huaxi Offshore is on the sea. The comprehensive competitiveness in the field of wind power has accumulated valuable practical experience for the comprehensive promotion and development of the field of marine engineering and the creation of the entire industrial chain of offshore wind power and marine engineering.

06-26

2019

The first pile of Yangjiang Wind Field was settled, and the first battle of Huaxi Five Thousand was won.
The first pile of Yangjiang Wind Field was settled, and the first battle of Huaxi Five Thousand was won.
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