A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COFFERDAM STRUCTURE
PROBLEM TO BE SOLVED: To provide means for ensuring a desired dry operation space in underwater site around an underwater structure in flowing water.SOLUTION: A cofferdam structure 1 comprises: a bank 11 reducing fluid force acting on an operation space S around a pier P from outside; a vertical member 121 which is arranged inside of the bank 11 with an interval and upwardly extends from the height of a lower surface of the operation space S (upper surface of a base station F); self-standing frame 12 without receiving reaction force from the pier P; and a plurality of water barrier walls 13 which are respectively inserted into a gap between two adjacent vertical members 121 and are hollow box capable of storing water in its inner section. Fluid force of seawater W mainly applied to a water barrier wall 13 is reduced by the bank 11. Therefore, a frame 21 supporting the water barrier wall 13 may support the water barrier wall 13 against force applied to the water barrier wall 13 while keeping self-standing state with a short lateral member 122. Thus, it is not required to arrange a short strut between the pier P and the frame 12 and the operation space S having an excellent workability may be ensured.SELECTED DRAWING: Figure 2
【課題】流れのある水中において、水中構造物周囲の水中部に所望のドライな作業空間を確保する手段を提供する。【解決手段】締切構造物１は、橋脚Ｐの周囲の作業空間Ｓに外側から作用する流体力を減勢する築堤１１と、築堤１１の内側に間隔をあけて配置され、作業空間Ｓの下面（台座Ｆの上面）の高さから上に向かい延伸する縦部材１２１を有し、橋脚Ｐからの反力を受けることなく自立するフレーム１２と、隣り合う２本の縦部材１２１の間に各々挿入され、内部に水を収容できる中空の函体である複数の止水壁１３を備える。主として止水壁１３に加わる海水Ｗの流体力は、築堤１１により減勢されている。そのため、止水壁１３を支持するフレーム２１は、短い横部材１２２によって自立しつつ、止水壁１３に加わる力に抗して止水壁１３を支持することができる。そのため、橋脚Ｐとフレーム１２の間に切梁を配置する必要がなく、作業性の高い作業空間Ｓが確保される。【選択図】図２
COFFERDAM STRUCTURE
PROBLEM TO BE SOLVED: To provide means for ensuring a desired dry operation space in underwater site around an underwater structure in flowing water.SOLUTION: A cofferdam structure 1 comprises: a bank 11 reducing fluid force acting on an operation space S around a pier P from outside; a vertical member 121 which is arranged inside of the bank 11 with an interval and upwardly extends from the height of a lower surface of the operation space S (upper surface of a base station F); self-standing frame 12 without receiving reaction force from the pier P; and a plurality of water barrier walls 13 which are respectively inserted into a gap between two adjacent vertical members 121 and are hollow box capable of storing water in its inner section. Fluid force of seawater W mainly applied to a water barrier wall 13 is reduced by the bank 11. Therefore, a frame 21 supporting the water barrier wall 13 may support the water barrier wall 13 against force applied to the water barrier wall 13 while keeping self-standing state with a short lateral member 122. Thus, it is not required to arrange a short strut between the pier P and the frame 12 and the operation space S having an excellent workability may be ensured.SELECTED DRAWING: Figure 2
【課題】流れのある水中において、水中構造物周囲の水中部に所望のドライな作業空間を確保する手段を提供する。【解決手段】締切構造物１は、橋脚Ｐの周囲の作業空間Ｓに外側から作用する流体力を減勢する築堤１１と、築堤１１の内側に間隔をあけて配置され、作業空間Ｓの下面（台座Ｆの上面）の高さから上に向かい延伸する縦部材１２１を有し、橋脚Ｐからの反力を受けることなく自立するフレーム１２と、隣り合う２本の縦部材１２１の間に各々挿入され、内部に水を収容できる中空の函体である複数の止水壁１３を備える。主として止水壁１３に加わる海水Ｗの流体力は、築堤１１により減勢されている。そのため、止水壁１３を支持するフレーム２１は、短い横部材１２２によって自立しつつ、止水壁１３に加わる力に抗して止水壁１３を支持することができる。そのため、橋脚Ｐとフレーム１２の間に切梁を配置する必要がなく、作業性の高い作業空間Ｓが確保される。【選択図】図２
COFFERDAM STRUCTURE
締切構造物
YAMASHITA TORU (author) / YASUNO KOICHIRO (author) / TSUKAMOTO SHIN (author) / KII ATSUO (author)
2017-09-21
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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