A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR IMPROVING EXISTING HOLLOW FLOOR SLAB BRIDGE
To provide a method capable of preferably forming a desired partition wall in a void pipe of an existing hollow floor slab, and also to provide a method capable of fastening and fixing an anchor at an expected fastening strength in a hollow part.SOLUTION: A bag body insertion hole, an anchor insertion hole, and a fastening material injection hole are provided so as to reach a hollow part in a void pipe embedded in a hollow floor slab from an undersurface of the hollow floor slab. A bag body has air permeability and liquid-tight property and is expandable and deformable into a spherical shape. The bag body is inserted from the bag insertion hole into the hollow part so as to form a partition wall in the hollow part by injecting a liquid agent in a fluid state, which expands with the lapse of time, into the inserted bag body in order to expand and deform the bag body. An anchor is inserted from the anchor insertion hole to a position where a head part reaches the inside of the hollow part. A fastening material for fastening and fixing the anchor is injected in a space between the partition wall of the hollow part and an end face in a pipe shaft direction of the hollow part through the fastening material injection hole.SELECTED DRAWING: Figure 12
【課題】既設の中空床版のボイド管内に所望の隔壁を良好に形成することのできる工法及び中空部内にアンカーを期待通りの定着強度で定着固定することのできる工法を提供する。【解決手段】中空床版の下面から該中空床版に埋め込まれたボイド管内の中空部に達する袋体挿入孔、アンカー挿入孔、定着材注入孔を設け、袋体挿入孔より中空部内に通気性及び液密性を有しかつ球状に拡張変形可能な袋体を挿入し、挿入された袋体内に時間経過に伴って膨張する流動状態の液剤を注入して袋体を拡張変形させて中空部に隔壁を形成する。さらに、アンカー挿入孔より先頭部が中空部内に達する位置までアンカーを挿入し、定着材注入孔を通じて中空部の隔壁と中空部の管軸方向端面との間の空間にアンカーを定着固定するための定着材を注入する。【選択図】図１２
METHOD FOR IMPROVING EXISTING HOLLOW FLOOR SLAB BRIDGE
To provide a method capable of preferably forming a desired partition wall in a void pipe of an existing hollow floor slab, and also to provide a method capable of fastening and fixing an anchor at an expected fastening strength in a hollow part.SOLUTION: A bag body insertion hole, an anchor insertion hole, and a fastening material injection hole are provided so as to reach a hollow part in a void pipe embedded in a hollow floor slab from an undersurface of the hollow floor slab. A bag body has air permeability and liquid-tight property and is expandable and deformable into a spherical shape. The bag body is inserted from the bag insertion hole into the hollow part so as to form a partition wall in the hollow part by injecting a liquid agent in a fluid state, which expands with the lapse of time, into the inserted bag body in order to expand and deform the bag body. An anchor is inserted from the anchor insertion hole to a position where a head part reaches the inside of the hollow part. A fastening material for fastening and fixing the anchor is injected in a space between the partition wall of the hollow part and an end face in a pipe shaft direction of the hollow part through the fastening material injection hole.SELECTED DRAWING: Figure 12
【課題】既設の中空床版のボイド管内に所望の隔壁を良好に形成することのできる工法及び中空部内にアンカーを期待通りの定着強度で定着固定することのできる工法を提供する。【解決手段】中空床版の下面から該中空床版に埋め込まれたボイド管内の中空部に達する袋体挿入孔、アンカー挿入孔、定着材注入孔を設け、袋体挿入孔より中空部内に通気性及び液密性を有しかつ球状に拡張変形可能な袋体を挿入し、挿入された袋体内に時間経過に伴って膨張する流動状態の液剤を注入して袋体を拡張変形させて中空部に隔壁を形成する。さらに、アンカー挿入孔より先頭部が中空部内に達する位置までアンカーを挿入し、定着材注入孔を通じて中空部の隔壁と中空部の管軸方向端面との間の空間にアンカーを定着固定するための定着材を注入する。【選択図】図１２
METHOD FOR IMPROVING EXISTING HOLLOW FLOOR SLAB BRIDGE
既設中空床版橋の改良方法
KIRIKAWA KIYOSHI (author) / AMAMIYA YOSHIKO (author) / MORIOKA TSUYOSHI (author) / HATTORI MAKOTO (author) / ANABUKI RYOTA (author) / HIGUCHI KOSUKE (author)
2024-10-10
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
METHOD FOR REPAIRING HOLLOW FLOOR SLAB AND HOLLOW FLOOR SLAB
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