I. Project Overview:
Cangzhou Bohai New Area Baan Water Conservancy Co., Ltd. plans to construct a 100,000 tons/day seawater desalination project in the Bohai New Area. On their behalf, our company has undertaken the compaction construction work for the site. The project is located to the south of Dongshu Port Road in the Bohai New Area and to the north of the Handan-Huanghua Railway. The site is currently an empty area that has been recently backfilled, with significant terrain undulations. Our company has developed three plans for this project and ultimately decided to use an artificial precipitation and multi-layer compaction construction method to reinforce the site.
Two: Engineering Volume: 50,000 square meters
3. Project Duration: 70 days
With the full strength of the company, meticulously designed and scientifically planned, the Cangzhou Seawater Desalination project was launched on schedule.
To ensure the accuracy of the entire project's data and to develop a construction plan with high-level conclusions from a macro perspective, our company has dispatched an exploration team to further investigate the groundwater at the site. The results indicate that below the surface at -2 meters, it is entirely subterranean.Tide waterHigh NO₃ (nitrate) content, high corrosiveness。
The original terrain of the project site is characterized by high ground water content and extensive silt layers, with the soil moisture content reaching up to 50% in backfill above -5 meters. Walking on the site can lead to sinking, and it is almost impossible to carry out compaction work on such soil conditions.
With the support of the company's technical and engineering departments, on June 3, 2015, the first phase involved deploying four excavators to completely remove the surface silt layer.
To withstand the sea water backflow during the construction of the stop project, the first priority is to reinforce the coastal shorelines within the construction site. If sea water backflow occurs, the previous efforts would be in vain.
The project owner and General Manager Yang Jiande inspected the construction site, deeply exchanging opinions on the project's construction.
The intensive precipitation process on the site begins. The entire site employs a well-pipe precipitation construction technique, dividing it into Zones 1-10. Measures for the first precipitation are implemented in areas with high water content. As the rainy season from June to July is approaching, drainage plans are incorporated into the design in advance.
All well pipes within the site have been installed, and the dewatering process is proceeding as planned.

The ramming construction has officially commenced and will be carried out simultaneously with the precipitation process. The ramming and precipitation will be done concurrently, allowing the moisture in the soil to be compacted and extruded into the well pipe, which is then pumped out to the sea using a pump.

 

Our company's seawater desalination foundation project in Bohai New Area is nearly halfway through its construction timeline. The project is surrounded by three sides of sea, with seawater detected at depths of -2 meters and above. The backfill soil above -5 meters contains more than 50% moisture content, and there's an additional 5,000 square meters of silted area. The client requires the foundation's bearing capacity to be at least 140 kPa at -5 meters and above, with a total project duration of 70 days. Completing the work within such a short timeframe is undoubtedly a significant challenge. Through the joint efforts of our team, we have overcome the difficulty of compacting the soil in high-moisture content areas. The project is now 50% complete. We believe that solutions are more abundant than difficulties, and we are committed to delivering this project beautifully.
The desalination project in Bohai New District has been successfully completed. It has been inspected by a first-hand testing unit and a quality supervision station, meeting the construction standards of the owner.