Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ARTIFICIAL SHOAL OR TIDAL FLAT
PROBLEM TO BE SOLVED: To provide an artificial shoal with a tidal flat that uses dredged soil as a filler material, the artificial shoal reducing a construction cost significantly by reducing a scale of ground improvement at a submerged bank portion.SOLUTION: A reinforcement soil layer B is provided on a shore side of a submerged bank A, the submerged bank A comprising two submerged bank parts a1, a2 on top and bottom. The submerged bank parts a1, a2 are provided such that a part of a bottom surface of the submerged bank part a1 on the top is in contact with a top edge surface of the submerged bank part a2 on the bottom. A ground improvement part E is provided in a ground on which the submerged bank part a2 on the bottom is installed, for supporting the overall submerged bank part a2. The reinforcement soil layer B is formed by reinforced soil having an underwater unit volume mass smaller than an underwater unit volume mass of a constituent material of the submerged bank A, and having a uniaxial compressive strength after 28 days of curing of 40kN/mor greater. Furthermore, the reinforcement soil layer is installed so as to contact with a remaining part and a side surface of the bottom surface of the submerged bank part a1 on the top, and a side surface of the submerged bank part a2 on the bottom.SELECTED DRAWING: Figure 1
【課題】中詰材として浚渫土を用いる、干潟を有する人工浅場であって、潜堤部分の地盤改良の規模を小さくすることにより、施工コストを大幅に低減する。【解決手段】潜堤Ａの岸側に補強土層Ｂが設けられ、潜堤Ａが上下２段の潜堤部ａ1,ａ2で構成されるとともに、これら潜堤部ａ1,ａ2は、上段の潜堤部ａ1の底面の一部が下段の潜堤部ａ2の天端面に接するように設けられ、下段の潜堤部a2が設置される地盤に、潜堤部a2全体を支持するための地盤改良部Ｅが設けられ、補強土層Ｂは、水中での単位体積質量が潜堤Ａの構成材の水中での単位体積質量よりも小さく、且つ２８日養生後の一軸圧縮強さが４０ｋＮ／ｍ２以上となる補強土で構成されるとともに、上段の潜堤部ａ1の底面の残部及び側面と、下段の潜堤部ａ2の側面に接して設けられる。【選択図】図１
ARTIFICIAL SHOAL OR TIDAL FLAT
PROBLEM TO BE SOLVED: To provide an artificial shoal with a tidal flat that uses dredged soil as a filler material, the artificial shoal reducing a construction cost significantly by reducing a scale of ground improvement at a submerged bank portion.SOLUTION: A reinforcement soil layer B is provided on a shore side of a submerged bank A, the submerged bank A comprising two submerged bank parts a1, a2 on top and bottom. The submerged bank parts a1, a2 are provided such that a part of a bottom surface of the submerged bank part a1 on the top is in contact with a top edge surface of the submerged bank part a2 on the bottom. A ground improvement part E is provided in a ground on which the submerged bank part a2 on the bottom is installed, for supporting the overall submerged bank part a2. The reinforcement soil layer B is formed by reinforced soil having an underwater unit volume mass smaller than an underwater unit volume mass of a constituent material of the submerged bank A, and having a uniaxial compressive strength after 28 days of curing of 40kN/mor greater. Furthermore, the reinforcement soil layer is installed so as to contact with a remaining part and a side surface of the bottom surface of the submerged bank part a1 on the top, and a side surface of the submerged bank part a2 on the bottom.SELECTED DRAWING: Figure 1
【課題】中詰材として浚渫土を用いる、干潟を有する人工浅場であって、潜堤部分の地盤改良の規模を小さくすることにより、施工コストを大幅に低減する。【解決手段】潜堤Ａの岸側に補強土層Ｂが設けられ、潜堤Ａが上下２段の潜堤部ａ1,ａ2で構成されるとともに、これら潜堤部ａ1,ａ2は、上段の潜堤部ａ1の底面の一部が下段の潜堤部ａ2の天端面に接するように設けられ、下段の潜堤部a2が設置される地盤に、潜堤部a2全体を支持するための地盤改良部Ｅが設けられ、補強土層Ｂは、水中での単位体積質量が潜堤Ａの構成材の水中での単位体積質量よりも小さく、且つ２８日養生後の一軸圧縮強さが４０ｋＮ／ｍ２以上となる補強土で構成されるとともに、上段の潜堤部ａ1の底面の残部及び側面と、下段の潜堤部ａ2の側面に接して設けられる。【選択図】図１
ARTIFICIAL SHOAL OR TIDAL FLAT
人工浅場又は干潟
HONDA HIDEKI (Autor:in) / YASHIKI TAHO (Autor:in)
26.10.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Laboratory Mobile Bed Model Studies on Ebb Tidal Shoal Evolution
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Reservoir Model of Ebb-Tidal Shoal Evolution and Sand Bypassing
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Prediction of Ebb-Tidal Shoal Volume Change and Sand Bypassing
| British Library Conference Proceedings | 2000