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CENTRAL LUZON LINK EXPRESSWAY, PHILIPPINES 3
CENTRAL LUZON LINK EXPRESSWAY, PHILIPPINES
CENTRAL LUZON LINK EXPRESSWAY, PHILIPPINES
When Traditional Sand Bunds Fail: A GEOTUBE Marine Solution for Land Reclamation
When traditional sand bund construction failed on an extremely soft marine clay seabed, GEOTUBE® Marine systems provided a stable containment solution that helped advance a land reclamation project for 112 acres.
GSE HD geomembrane lined salt ponds ensure long-term brine containment
GSE® HD geomembrane lined over 3.4 million m² of evaporation ponds to prevent brine seepage under extreme heat and UV exposure. This continuous barrier eliminated salt discharge and protected the surrounding environment.
Ensuring secure tailings containment at Saudi Arabia’s Umm Wu’al Phosphate Project
Solmax supplied 900,000 m² of double-sided GSE® HD FrictionFlex geomembrane for Maaden’s Umm Wu’al tailings ponds in Saudi Arabia, meeting strict quality controls and ensuring flawless containment in extreme conditions.
The Central Luzon Link Expressway (CLLEx) is currently being constructed in the Central Luzon region of the Philippines. It will connect the Subic–Clark–Tarlac Expressway (SCTEx) and Tarlac-Pangasinan-La Union Expressway (TPLEx) to the North Luzon East Expressway, which is under construction in Cabanatuan, heading towards San Jose, Nueva Ecija.
The project aims to provide faster access from Metro Manila to Cabanatuan City, which serves as the hub city for Pacific Ocean Coastal Area Development. Additionally, it will alleviate traffic congestion on the Pan-Philippine Highway (Daang Maharlika).
The soil conditions in the area where the expressway will be built consist of soft clay foundations. The natural consolidation process for surcharge loading is excessively time-consuming, and there is a significant concern regarding foundation instability.
Alidrain® Prefabricated Vertical Drains (PVDs) have been selected to address the consolidation of soft soil in this expressway project. By using Alidrain PVDs, the settlement of soft clay foundation layers is accelerated, and the undrained shear strength of the soft clay foundation is increased. These improvements enhance the stability of the soft clay material.
The initial phase of the project involved installing Alidrain PVDs. This process began by constructing a stable working platform on top of the soft clay foundation. Then, the Alidrain PVDs were installed by vertically vibrating a hollow steel mandrel containing the prefabricated vertical drains into the soft clay foundation. The spacing between the drains was 1 m2 (10.76 ft2). The installation depth ranged from 2 to 7.5 m2 (6.56 to 24.61 ft2), depending on the thickness of the soft clay foundation.
The use of Alidrain PVDs significantly reduced consolidation time and improved the stability of the soft clay foundation.