Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GRAVITY-TYPE BREAKWATER
PROBLEM TO BE SOLVED: To provide a gravity-type breakwater, which has high slide resistance against tidal wave and high stability of a dam body due to reduced uplift force applied on the dam body and can be constructed at low cost.SOLUTION: A gravity-type breakwater has a dam body 2, which is installed on a rubble mound 1, and a reinforcement support part 3, which is disposed on rear side of the dam body 2. The reinforcement support 3 comprises: a stone layer 4, which is disposed so as to contact the rear face of the dam body 2 and the rubble mound 1; a reinforcement soil layer 5, which is made of the reinforcement soil that has underwater unit volume mass equal to or higher than that of the stone material and adhesive force of a specified value or higher and disposed so as to contact the rear face of the stone layer 4. A top end part of the stone layer 4 exposes underwater. Water stream that flows in the rubble mound 1 passes through the stone layer 4 and flows from the top end part to the rear side of the dam body, which restricts a large uplift force applied on the dam body 2 and provides high stability of the dam body 2. As the reinforcement support part 3 has a composite structure of the stone layer 4 and the reinforcement soil layer 5, high slide resistance can be obtained.SELECTED DRAWING: Figure 1
【課題】津波などに対する滑動抵抗が高く且つ堤体に作用する揚圧力が抑えられることで堤体の安定性が高く、低コストに造成可能な重力式防波堤を提供する。【解決手段】捨石マウンド１の上に設置された堤体２と、堤体２の背面側に設けられる補強用支持部３を備え、補強用支持部３は、堤体２の背面と捨石マウンド１に接するようにして設けられる石材層４と、水中単位体積質量が石材と同等以上で且つ所定値以上の粘着力を有する補強土からなり、石材層４の背面に接するようにして設けられる補強土層５を備え、石材層４の天端部が水中に露出している。捨石マウンド１内を流れる水流が石材層４を通ってその天端部から防波堤の背面側に流れるため、堤体２に大きな揚圧力が作用することが抑えられ、堤体２の高い安定性が得られる。また、補強用支持部３が石材層４と補強土層５の複合構造であるため、高い滑動抵抗力が得られる。【選択図】図１
GRAVITY-TYPE BREAKWATER
PROBLEM TO BE SOLVED: To provide a gravity-type breakwater, which has high slide resistance against tidal wave and high stability of a dam body due to reduced uplift force applied on the dam body and can be constructed at low cost.SOLUTION: A gravity-type breakwater has a dam body 2, which is installed on a rubble mound 1, and a reinforcement support part 3, which is disposed on rear side of the dam body 2. The reinforcement support 3 comprises: a stone layer 4, which is disposed so as to contact the rear face of the dam body 2 and the rubble mound 1; a reinforcement soil layer 5, which is made of the reinforcement soil that has underwater unit volume mass equal to or higher than that of the stone material and adhesive force of a specified value or higher and disposed so as to contact the rear face of the stone layer 4. A top end part of the stone layer 4 exposes underwater. Water stream that flows in the rubble mound 1 passes through the stone layer 4 and flows from the top end part to the rear side of the dam body, which restricts a large uplift force applied on the dam body 2 and provides high stability of the dam body 2. As the reinforcement support part 3 has a composite structure of the stone layer 4 and the reinforcement soil layer 5, high slide resistance can be obtained.SELECTED DRAWING: Figure 1
【課題】津波などに対する滑動抵抗が高く且つ堤体に作用する揚圧力が抑えられることで堤体の安定性が高く、低コストに造成可能な重力式防波堤を提供する。【解決手段】捨石マウンド１の上に設置された堤体２と、堤体２の背面側に設けられる補強用支持部３を備え、補強用支持部３は、堤体２の背面と捨石マウンド１に接するようにして設けられる石材層４と、水中単位体積質量が石材と同等以上で且つ所定値以上の粘着力を有する補強土からなり、石材層４の背面に接するようにして設けられる補強土層５を備え、石材層４の天端部が水中に露出している。捨石マウンド１内を流れる水流が石材層４を通ってその天端部から防波堤の背面側に流れるため、堤体２に大きな揚圧力が作用することが抑えられ、堤体２の高い安定性が得られる。また、補強用支持部３が石材層４と補強土層５の複合構造であるため、高い滑動抵抗力が得られる。【選択図】図１
GRAVITY-TYPE BREAKWATER
重力式防波堤
HONDA HIDEKI (Autor:in) / AWAZU SHINGO (Autor:in)
09.02.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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