: A PC culvert consisting of a box-shaped body and assembled by connecting plural the culverts continuously, wherein one join surface of the PC culvert is provided with a concave mortar recess 211 so that a space is formed through which mortar is able to be filled when joining the PC culverts each other; wherein a water-seal strip 213 for preventing a water leakage is attached around the mortar recess 211; wherein the mortar recess 211 is provided with a shear key recess 212 which is more concave than the mortar recess 211; wherein the other join surface of the PC culvert is formed with a shear key 214 corresponding to the shear key recess 212; wherein a space formed by the mortar recess 211 and the shear key recess 212 with both the PC culverts being joined to each other is filled with the mortar; wherein a lower slab 210 and an upper slab 220 of the PC culvert are provided with a mortar injection pipe 300 and an air discharge pipe 310 which communicate with an inner surface of the shear key recess 212, respectively; and wherein an injection part 302 of the mortar injection pipe 300 and a discharge part 312 of the air discharge pipe 310 are exposed to an interior passage of the PC culvert 201. No. of Pages : 35 No. of Claims : 7
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