Utilizing the construction technology advantages of China and Japan, uniting many large-scale research institutes of consulting design, Chuwa Bussan Co. Ltd. offers technical support to engineering construction of port/road/bridge/tunnel through design construction scheme, tackle problems in key technologies and configuring scheme of equipment.
Chuwa Bussan provides the foundation treatment technology of sand compaction pile, immersed-tube foundation bed leveling technology, underwater sound shielding technology, immersion surveying and monitoring technology and reinforced bar processing technology from Japan, and has organized Japanese technicians to train the project personnel. At the same time, Chuwa Bussan Co. Ltd. introduces many kinds of operation vessels and construction machinery such as the vessel of sandcompaction pile, rubble leveling equipment, steel bar bender, immersion surveying and monitoring equipment and friction welding press to this project.
River-crossing tunnel of Weisan Road in Nanjing adopted super-diameter slurry-pressure-balance TBM, with a diameter of 14.93 meters in the digging construction. Our company has provided technical support for the construction of shield machine for this project, and organized Japanese technical experts to train the project personnel. Tianhe Mechanical Equipment Manufacturing Co., Ltd., invested by our company, serves as main contractor to manufacture shield machine. This project represents the world-class project among shield tunnels in Yangtze River basin, with the features of most difficult technology, most complicated geological conditions, and maximum technical difficulties and challenges.