Subway Slab Ballastless Track Technology
The video shows the new subway slab ballastells track technology, which solved the geometric dimensions of the track slab in the narrow space of the subway, slab structure etc relevant technical difficulties during construction.
In order to solve the problems of unevenness, vibration and noise, maintainability, construction speed and cost of the long-pillar integrated ballast bed, China Railway 23rd Bureau Track Co., Ltd., relying on the projects of Shanghai Metro Line 12 and Line 16, proposed a multi-layer structure Composite structure ballast bed, including: groove base + isolation layer, self-compacting concrete, non-prestressed reinforced concrete prefabricated slab; researched and solved the geometric dimensions of the track slab in the narrow space of the subway, slab structure, different types of slab structure turnouts, drainage methods, Relevant technical difficulties such as interface engineering connection methods, track slab laying construction methods, tooling equipment, and special self-compacting concrete materials.
At present, the research results have obtained 8 authorized patents, including 6 invention patents, and its core technology “track plate production method” patent won the 16th China Excellent Patent Award and the first prize of the Sichuan Provincial Patent Award.
