A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF WATER CUTOFF WORK SPACE
PROBLEM TO BE SOLVED: To provide a construction method of a water cutoff work space capable of efficiently constructing a water cutoff work space, and capable of restraining deformation of a sheet pile for partitioning a water area, when constructing a bridge pier in the water area.SOLUTION: A water area is partitioned into a water cutoff object area WA1 and a non-object water area WA2 by a plurality of sheet piles 1 adjacently driven in a water bottom. Next, in a state where a water level WL1 in the water cutoff object water area WA1 and a water level WL2 in the non-object water area WA2 are positioned at an upper end part of the sheet piles 1, the water cutoff object water area WA1 is excavated down to a water bottom G1 at a predetermined depth, and a bottom board 14 is formed by placing underwater concrete on the water bottom G1. Next, preassembled major assembly timbering 6 is sunk in the water cutoff object water area WA1 from the atmosphere. Next, the water cutoff object water area WA1 is formed as a water cutoff work space DA in an atmosphere state by discharging water in the water cutoff object water area WA1 to an external part.SELECTED DRAWING: Figure 7
【課題】橋脚等を水域に施工する際に、止水作業空間を効率よく構築することができ、かつ、水域を仕切る矢板の変形を抑制できる止水作業空間の構築方法を提供する。【解決手段】隣接して水底に打設した複数の矢板１によって水域を止水対象水域ＷＡ１と非対象水域ＷＡ２とに仕切る。次いで、止水対象水域ＷＡ１の水位ＷＬ１および非対象水域ＷＡ２の水位ＷＬ２が矢板１の上端部に位置する状態で、止水対象水域ＷＡ１を所定深さの水底Ｇ１まで掘削し、水底Ｇ１の上に水中コンクリートを打設して底盤１４を形成する。次いで、予め組み立てられている大組支保工６を気中から止水対象水域ＷＡ１に沈設する。次いで、止水対象水域ＷＡ１の水を外部に排出することにより止水対象水域ＷＡ１を気中状態の止水作業空間ＤＡにする。【選択図】図７
CONSTRUCTION METHOD OF WATER CUTOFF WORK SPACE
PROBLEM TO BE SOLVED: To provide a construction method of a water cutoff work space capable of efficiently constructing a water cutoff work space, and capable of restraining deformation of a sheet pile for partitioning a water area, when constructing a bridge pier in the water area.SOLUTION: A water area is partitioned into a water cutoff object area WA1 and a non-object water area WA2 by a plurality of sheet piles 1 adjacently driven in a water bottom. Next, in a state where a water level WL1 in the water cutoff object water area WA1 and a water level WL2 in the non-object water area WA2 are positioned at an upper end part of the sheet piles 1, the water cutoff object water area WA1 is excavated down to a water bottom G1 at a predetermined depth, and a bottom board 14 is formed by placing underwater concrete on the water bottom G1. Next, preassembled major assembly timbering 6 is sunk in the water cutoff object water area WA1 from the atmosphere. Next, the water cutoff object water area WA1 is formed as a water cutoff work space DA in an atmosphere state by discharging water in the water cutoff object water area WA1 to an external part.SELECTED DRAWING: Figure 7
【課題】橋脚等を水域に施工する際に、止水作業空間を効率よく構築することができ、かつ、水域を仕切る矢板の変形を抑制できる止水作業空間の構築方法を提供する。【解決手段】隣接して水底に打設した複数の矢板１によって水域を止水対象水域ＷＡ１と非対象水域ＷＡ２とに仕切る。次いで、止水対象水域ＷＡ１の水位ＷＬ１および非対象水域ＷＡ２の水位ＷＬ２が矢板１の上端部に位置する状態で、止水対象水域ＷＡ１を所定深さの水底Ｇ１まで掘削し、水底Ｇ１の上に水中コンクリートを打設して底盤１４を形成する。次いで、予め組み立てられている大組支保工６を気中から止水対象水域ＷＡ１に沈設する。次いで、止水対象水域ＷＡ１の水を外部に排出することにより止水対象水域ＷＡ１を気中状態の止水作業空間ＤＡにする。【選択図】図７
CONSTRUCTION METHOD OF WATER CUTOFF WORK SPACE
止水作業空間の構築方法
KAMIYA SHUICHI (author) / OKI YASUNORI (author) / SAKAKIBARA TSUTOMU (author)
2018-02-01
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
CUTOFF MECHANISM, CUTOFF WORK SPACE FORMING DEVICE, AND CUTOFF WORK SPACE FORMING METHOD
| European Patent Office | 2018
| European Patent Office | 2022