China Huanghua Port Project Case

The Phase II project of Huanghua Port Comprehensive Bonded Zone is a national key construction project located in Cangzhou, Hebei Province. The project covers a reclamation area of 2.06 km², with a total hydraulic fill volume of 11.41 million m³ and a soft soil treatment area of 2.15 million m². The newly reclaimed land will be used for bonded warehousing, logistics and industrial facilities, supporting the strategic development of Bohai New Area and the Beijing–Tianjin–Hebei region.

The project adopted hydraulic reclamation combined with vacuum preloading soft soil treatment:

• Hydraulic filling formed the new land with an average fill height of 4.0 m.
• Geotextiles were applied for separation, filtration and reinforcement.
• Vacuum preloading and surcharge preloading were used to accelerate consolidation.
• Geotextile tubes were used in shoreline protection and embankment stabilization.

This scheme effectively addressed the challenges of weak foundations and ensured long-term land stability.

HOKBG provides non-woven geotextiles, woven geotextiles, bidirectional plastic geogrids and geotube bags for the project. They are used for isolation, drainage, reinforcement and slope protection:

• Non-woven geotextiles: 200–400 g/m², used for water filtration and drainage; 1.4 million m² supplied.
• Woven geotextiles: Tensile strength ≥40 kN/m, used to improve foundation bearing capacity; used to separate backfill sand from existing silt; 700,000 m² supplied.
• Bidirectional plastic geogrids: 20–20 kN; 700,000 m² supplied.
• Geotubes: used for embankment protection and consolidation in land reclamation areas; 100,000 m² supplied.

All materials passed third-party quality inspections and performed well under high salinity and UV exposure.

Reclaimed 2.06 km² of new land, creating conditions for bonded zone development.
Improved bearing capacity and stability of soft soil foundations.
Infrastructure such as roads, pipelines and inspection facilities completed on schedule.
The project was recognized as a “Safe Construction Demonstration Project of Hebei Province” in 2015.
HOKBG materials were highly praised by the contractor and the project owner for performance and durability.