Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
INSTALLATION METHOD OF CAPTURING BODY AND WEIR STRUCTURE
PROBLEM TO BE SOLVED: To provide an installation method of a capturing body capable of effectively installing a capturing body without modifying an existing weir while saving the cost and time required for construction.SOLUTION: In the installation method of a capturing body, which has a water passing part (21) through which water runs, a capturing body (3) is installed in a sweep area where sediment has accumulated at the upstream side of a river near a weir (2) for capturing drift woods flown down from the upstream of the river. Defining the distance from the water passing part to the capturing body in a flowing direction of the river as L1, the length of drift woods as L and the movement limit particle size as D, the capturing body is installed at a position facing the full length of the opening of the water passing part in the accumulated sediment (S) at the upstream side of the weir so as to satisfy the relationship in a formula (1) below: 2×D≤L1≤1/2×L (1).SELECTED DRAWING: Figure 1
【課題】既設の堰堤に手を加えることなく、捕捉体を効果的に設置でき、施工にかかるコストや時間を抑えること。【解決手段】流水を通す水通し部（２１）を有し、上流側に土砂が堆積した堰堤（２）の近傍に河川の上流から流れてくる流木を捕捉する捕捉体（３）を河川の掃流区間に設置する捕捉体の設置方法であって、河川の流れ方向に沿った水通し部から捕捉体までの距離をＬ１、流木長をＬ、移動限界粒径をＤとしたときに、以下の式（１）の関係を満たすように、捕捉体を水通し部の開口面全域に対向する位置で堰堤の上流側に堆積した土砂（Ｓ）に設置する。２×Ｄ≦Ｌ１≦１／２×Ｌ ・・・（１）【選択図】図１
INSTALLATION METHOD OF CAPTURING BODY AND WEIR STRUCTURE
PROBLEM TO BE SOLVED: To provide an installation method of a capturing body capable of effectively installing a capturing body without modifying an existing weir while saving the cost and time required for construction.SOLUTION: In the installation method of a capturing body, which has a water passing part (21) through which water runs, a capturing body (3) is installed in a sweep area where sediment has accumulated at the upstream side of a river near a weir (2) for capturing drift woods flown down from the upstream of the river. Defining the distance from the water passing part to the capturing body in a flowing direction of the river as L1, the length of drift woods as L and the movement limit particle size as D, the capturing body is installed at a position facing the full length of the opening of the water passing part in the accumulated sediment (S) at the upstream side of the weir so as to satisfy the relationship in a formula (1) below: 2×D≤L1≤1/2×L (1).SELECTED DRAWING: Figure 1
【課題】既設の堰堤に手を加えることなく、捕捉体を効果的に設置でき、施工にかかるコストや時間を抑えること。【解決手段】流水を通す水通し部（２１）を有し、上流側に土砂が堆積した堰堤（２）の近傍に河川の上流から流れてくる流木を捕捉する捕捉体（３）を河川の掃流区間に設置する捕捉体の設置方法であって、河川の流れ方向に沿った水通し部から捕捉体までの距離をＬ１、流木長をＬ、移動限界粒径をＤとしたときに、以下の式（１）の関係を満たすように、捕捉体を水通し部の開口面全域に対向する位置で堰堤の上流側に堆積した土砂（Ｓ）に設置する。２×Ｄ≦Ｌ１≦１／２×Ｌ ・・・（１）【選択図】図１
INSTALLATION METHOD OF CAPTURING BODY AND WEIR STRUCTURE
捕捉体の設置方法及び堰堤構造物
WADA HIROSHI (Autor:in) / YOSHIDA KAZUO (Autor:in) / SHIMA JOJI (Autor:in)
13.04.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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