2results about How to "Avoid construction difficulties" patented technology

A seamless extended bridge structure suitable for soft soil areas includes a main girder, abutments, sunken approach slabs, UHPC (Ultra-High-Pressure Polymer) junction slabs, reinforced pavement layer, ground beam, and precast piles. The main girder is simply supported on supports, and adjacent main girders and the main girder and reinforced pavement layer are connected by UHPC junction slabs. One side of the sunken approach slab overlaps the back of the abutment, and the other side is fixed to the ground beam, which is supported by pile foundations. The reinforced pavement layer includes an expansion / contraction buffer zone above the sunken approach slab and a fixed zone above the ground beam; the expansion / contraction buffer zone is provided with expansion / contraction space by saw cuts, and a sliding layer is provided between it and the sunken approach slab. This scheme connects the bridge deck, UHPC junction slab, and reinforced pavement layer into a single structure using a steel mesh frame. The reinforced pavement layer absorbs the thermal expansion and contraction of the bridge, and the sunken approach slab controls uneven settlement at the bridge abutments, making it particularly suitable for soft soil areas. This disclosure also provides a construction method for a seamless extended bridge with a soft soil deck suitable for soft soil areas, reducing construction difficulty and ensuring performance.