This project in the Philippines aims to expand the BACONG bridge route from two lanes to four lanes to accommodate increased traffic demand. The widened section of the roadbed was treated using vibro-compaction gravel pile technology, with a designed pile diameter of 1 meter, a pile length of 15 meters, and a triangular pile layout.
Our company was responsible for the construction and testing of this project. A total of 910 vibro-impact gravel piles were completed, and the testing adhered to the European standard for composite foundation load testing. The measured total settlement was 3.09 millimeters, fully meeting the design requirements.
This project introduced the composite foundation load testing method for construction inspection, marking the first application of this technology in the Philippine construction industry. The Philippine Ministry of Public Works and Highways (DPWH) has adopted this project as a model, incorporating the vibro-impact gravel pile composite foundation load testing method into relevant Philippine building standards.
The Macau New Urban Zone reclamation area spans approximately 350 hectares and is divided into five zones. Zone A, the largest at 138 hectares, is situated east of the Black Sand Ring and Friendship Bridge on the Macau Peninsula, north of the Macau Outer Harbor Channel’s cruise path. It is adjacent to the artificial island of the Hong Kong-Zhuhai-Macao Bridge Port and is planned for diverse uses, including residential areas, infrastructure, waterfront parks, public facilities, and industrial zones.
This project utilized vibration compaction and rolling techniques for foundation treatment, covering a total treatment area of 1.65 million square meters. The design specifications included a treatment depth of 2-8 meters, a pile spacing of 4.3 meters, a post-treatment soil settlement of 50 centimeters, and a bearing capacity of 250 kPa.
Our company was responsible for executing this project, deploying 20 sets of BJV75 kilowatt vibroflotation compactors and applying 400 kilonewton vibration rolling for surface compaction. The project was completed within a six-month construction period, meeting all design requirements and ensuring a solid foundation for future developments in Zone A.
The 2×660MW ultra-supercritical coal-fired power plant in Payala, Bangladesh, is being constructed through Sino-Bangladeshi cooperation. On October 14, 2016, Chinese President Xi Jinping and Bangladeshi Prime Minister Sheikh Hasina inaugurated the project, marking it as a key initiative under the strategic partnership agreement between China and Bangladesh. This power plant will feature Chinese technology and equipment and is set to become the largest thermal power station in Bangladesh upon completion.
The project site features a foundation composed of blowing sand, silt, and clay. Foundation treatment was conducted using the vibro-pumping process, designed to a depth of 25 meters with a point spacing of 2.8 meters, covering a total treatment area of 800,000 square meters. Post-treatment results show an average composite foundation compactness of 90%, with settlement limited to 60 centimeters or less.
The Electrified Dual Track Railway Project (EDTP) in Malaysia was the largest national infrastructure project at the time, featuring a planned route of 180 kilometers with a design speed of 160 kilometers per hour. The Rawang-Ipoh section spans 32 kilometers, with the construction area initially characterized by swamps, ponds, and shrubs.
The site was prepared through excavation and fine sand backfilling, followed by foundation reinforcement using vibro-gravel pile technology. The project utilized two pile diameters: 0.8 meters and 1.0 meters, completing a total of 135,790 linear meters of vibro-gravel piles. Our company was responsible for the foundation treatment of this section, ensuring the stability and performance of the railway’s soft soil foundation. This work contributed significantly to the successful implementation of Malaysia’s key national railway project.
