Phu Tho Province Vietnam TensarTech Stratum Cellular Foundation Mattress
A road construction project connecting Hung Hoa town to Di Nau commune encountered significant engineering challenges due to poor soil conditions, with a problematic ground layer ranging from 2.5 to 4.8 meters thick that threatened differential settlement and embankment stability. Traditional remediation methods such as prefabricated vertical drains with surcharge preloading and deep soil mixing were deemed unsuitable due to time constraints and technical complexity respectively. To address these challenges, Tensar implemented the innovative TensarTech Stratum Cellular Foundation Mattress system, which featured a robust foundation mattress constructed with HX geogrid base and uniaxial geogrid walls that created aggregate-filled compartments. This solution successfully controlled uneven settlement, reduced long-term settlement rates, enhanced bearing capacity, and improved overall embankment stability while enabling rapid construction and enhancing drainage characteristics of the embankment construction.
Benefits
- Controlled uneven settlement
- Enhanced bearing capacity
- Quick construction with drainage functionality
Aroad project connecting Hung Hoa town to Di Nau commune faced challenges due to poor soil conditions. The problematic ground layer ranged from 2.5 to 4.8 metres thick. The project needed a solution for controlling differential settlement and stability of the road embankment. Traditional methods were unsuitable - prefabricated vertical drains (PVDs) with surcharge preloading would take too long, whilst deep soil mixing would be technically difficult and expensive.
Tensar implemented the TensarTech Stratum Cellular Foundation Mattress system as an innovative solution. The design featured a robust foundation mattress constructed with HX geogrid base and uniaxial geogrid walls, creating aggregate-filled compartments. This foundation controlled uneven settlement, reduced the rate of long-term settlement, enhanced the bearing capacity, and improved embankment stability. The Stratum system enabled quick construction with the resulting granular mattress improving drainage characteristics of the embankment construction.
