ROAD WIDENING SLAB AND ROAD WIDENING STRUCTURE

To provide a road widening slab which is easy to cope with curved roads.SOLUTION: A road widening slab 11 made of precast concrete is provided on a road between a mountain-side inclined surface and a valley-side inclined surface, and widens a road 1 by stretching out the valley-side end part toward the valley side. A convex portion 23 for length adjustment is provided on one end surface 22 side in a road length direction, and a discarding formwork 31 which has an upper surface 32J corresponding to a lower surface 23K of the convex portion 23 is provided on the other end surface 25 side in the road length direction. And overlapping margins of the convex portion 23 of the adjacent floor slabs 11, 11 and the discarding formwork 31 are adjusted, and concrete is placed on the discarding formwork 31. Thereby, a space between slabs 11, 11 can be adjusted without building a formwork under the slabs 11 on site, and it is possible to cope with curved roads.SELECTED DRAWING: Figure 9 【課題】曲線道路への対応が容易な道路拡幅用床版を提供する。【解決手段】山側傾斜面と谷側傾斜面の間の道路に設けられ、谷側端部を谷側に張り出して道路１を拡幅するプレキャストコンクリート製の道路拡幅用床版１１である。道路長さ方向の一側端面２２に長さ調整用の凸部２３を設け、道路長さ方向の他側端面２５に、凸部２３の下面２３Ｋに対応する上面３２Ｊを有する捨て型枠３１を設けたから、隣り合う床版１１，１１の凸部２３と捨て型枠３１の重ね合わせ代と調整し、捨て型枠３１上にコンクリートを打設することにより、現場で床版１１の下方に型枠を組むことなく、床版１１，１１の間隔を調整することができると共に、曲線道路に対応することが可能となる。【選択図】図９