Description

YJ900 Girder Transform and Erection Machine is designed for the efficient construction and erection of passenger railway lines in mountainous regions. It handles double hole concrete box girders of lengths 20m, 24m, and 32m, including curve girders and present casting box beams. This advanced machine excels in tunnel and bridge connection scenarios, allowing for seamless shifting and transferring of girders at the precast location without damaging the roadbed or bridge surfaces. Its autonomous capabilities enable it to navigate across double tunnels without the need for additional equipment, ensuring a smooth operation without collisions. The YJ900 is engineered to facilitate the erection of the first girder and the last two girders with precision, accommodating zero and negative distance requirements at tunnel entries and within tunnels, provided appropriate technical measures are implemented for high-speed applications (up to 250 km/h). The machine features a hinged structure for its walking sets, optimizing high-speed transit across various pavements, and allows for bidirectional girder erection with a 180-degree steering capability using a dial.

Specifications

Additional Information

This machine is specifically designed to ensure minimal disruption during operations, making it ideal for sensitive construction environments such as tunnels and bridges.