Title:
土石流堆積工
Document Type and Number:
Japanese Patent JP7212581
Kind Code:
B2
Abstract:
To provide a debris flow accumulation structure capable of effectively accumulating a large amount of sediment, debris and like.SOLUTION: A debris flow accumulation structure 1 comprises a concave structure body 2, an inlet part 8 and an outlet part 9, wherein the concave structure body 2 is widened more than a width of a river, and has a bottom part 3 and a peripheral wall part 4 surrounding the periphery of the bottom part 3. A flow passage structure 12 is arranged at a center in a lateral width direction of the bottom part 3. In the debris flow accumulation structure 1, a contraction flow structure 17, a slit structure 21, and a dispersion structure 25 are consecutively arranged from an outlet side to an inlet side, wherein the slit structure 21 and the dispersion structure 25 are formed lower than the peripheral wall part 4. The contraction flow structure 17 comprises a pair of protrusions 18 formed on both sides of the flow passage structure 12 as facing to each other. The slit structure 21 is arranged on both of left and right sides in a lateral width direction of the flow passage structure 12 and formed as dams having a slit 22, respectively, and the dispersion structure 25 is protrudingly formed upward to a plurality of pairs on both of the left and right sides placing the flow passage structure 12 therebetween.SELECTED DRAWING: Figure 1
Inventors:
Takeshi Shima
Application Number:
JP2019098288A
Publication Date:
January 25, 2023
Filing Date:
May 27, 2019
Export Citation:
Assignee:
Sabo and Landslide Technology Center
International Classes:
E02B7/02
Domestic Patent References:
| JP2001207431A | ||||
| JP2005030070A | ||||
| JP6180008A | ||||
| JP58006834A | ||||
| JP2004316081A | ||||
| JP60120027U | ||||
| JP2007218080A | ||||
| JP4089115U |
Attorney, Agent or Firm:
Atsushi Mitsuda