BLOCK FOR RIVER AND BLOCK WEIR FOR RIVER

摘要

PPROBLEM TO BE SOLVED: To provide a block for a river capable of making movement of water in the block for the river active to prevent deposit of sediment and activating water. PSOLUTION: This block for the river is composed of a cylindrical cavity 2 at the center of the block 1 for the river having a square plane, a cut-out channel 4 fitting a main body of the next block for the river perfectly to form water channels in the vertical direction and the horizontal direction on an upper face of the block for the river, a projecting part 3 formed by the cut-out channel 4, a vertical channel 5 fitting a main body of the next block for the river to form a vertical hole communicating vertically on each side face, a channel 3c for communicating the vertical channel 5 with the cylindrical cavity 2 on an upper face of the projecting part 3, a channel 5b formed between a lower part of the vertical channel 5 and the cylindrical cavity 2 to communicate the cylindrical cavities 2 mutually, fan-shaped cut-out parts 6 formed at four corners of the lower part, and a channel 7 for communicating the fan-shaped cut-out parts 6 with the cylindrical cavity 2. PCOPYRIGHT: (C)2007,JPO&INPIT