Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
REINFORCEMENT STRUCTURE OF EXISTING STEEL TOWER FOUNDATION
To efficiently secure a safety factor against a compressive load of an existing steel tower foundation without driving new piles into the ground.SOLUTION: In a reinforcement structure of an existing steel tower foundation 2, an inverted T-shaped concrete foundation 6 corresponding to each of four legs of a steel tower is buried in a soil 8, and the inverted T-shaped concrete foundation 6 supports one of the four legs of the steel tower. Then, at least a part of the soil 8 immediately above a foundation slab plate 7 of the existing steel tower foundation 2 where a compressive load acts is replaced with a lightweight embankment 10 lighter than the soil 8. Buoyancy suppressing concrete 11 is laid on the lightweight embankment 10. The lifting of the lightweight embankment 10 due to the buoyancy acting on the lightweight embankment 10 is suppressed by the weight of the buoyancy suppressing concrete 11. A weight of the lightweight embankment 10 is determined so that a safety factor of the existing steel tower foundation 2 is at least 2.00, and the compressive load acting on the foundation slab plate 7 is reduced.SELECTED DRAWING: Figure 2
【課題】杭を新たに地中に打ち込むことなく、既設鉄塔基礎の圧縮荷重に対する安全率を効率的に確保できるようにする。【解決手段】既設鉄塔基礎２の補強構造は、鉄塔の４脚のそれぞれに一対一で対応する逆Ｔ字型コンクリート基礎６を土壌８に埋め、逆Ｔ字型コンクリート基礎６で鉄塔の４脚のいずれかを支持するようになっている。そして、圧縮荷重が作用する既設鉄塔基礎２の基礎床板７の直上における土壌８の少なくとも一部を土壌８よりも軽量の軽量盛土１０に置き換え、軽量盛土１０の上に浮力抑制コンクリート１１を敷設して、軽量盛土１０に作用する浮力による軽量盛土１０の浮き上がりを浮力抑制コンクリート１１の重さで抑え、既設鉄塔基礎２の安全率が少なくとも２．００となるように軽量盛土１０の重量を決定して、基礎床板７に作用する圧縮荷重を低減する。【選択図】図２
REINFORCEMENT STRUCTURE OF EXISTING STEEL TOWER FOUNDATION
To efficiently secure a safety factor against a compressive load of an existing steel tower foundation without driving new piles into the ground.SOLUTION: In a reinforcement structure of an existing steel tower foundation 2, an inverted T-shaped concrete foundation 6 corresponding to each of four legs of a steel tower is buried in a soil 8, and the inverted T-shaped concrete foundation 6 supports one of the four legs of the steel tower. Then, at least a part of the soil 8 immediately above a foundation slab plate 7 of the existing steel tower foundation 2 where a compressive load acts is replaced with a lightweight embankment 10 lighter than the soil 8. Buoyancy suppressing concrete 11 is laid on the lightweight embankment 10. The lifting of the lightweight embankment 10 due to the buoyancy acting on the lightweight embankment 10 is suppressed by the weight of the buoyancy suppressing concrete 11. A weight of the lightweight embankment 10 is determined so that a safety factor of the existing steel tower foundation 2 is at least 2.00, and the compressive load acting on the foundation slab plate 7 is reduced.SELECTED DRAWING: Figure 2
【課題】杭を新たに地中に打ち込むことなく、既設鉄塔基礎の圧縮荷重に対する安全率を効率的に確保できるようにする。【解決手段】既設鉄塔基礎２の補強構造は、鉄塔の４脚のそれぞれに一対一で対応する逆Ｔ字型コンクリート基礎６を土壌８に埋め、逆Ｔ字型コンクリート基礎６で鉄塔の４脚のいずれかを支持するようになっている。そして、圧縮荷重が作用する既設鉄塔基礎２の基礎床板７の直上における土壌８の少なくとも一部を土壌８よりも軽量の軽量盛土１０に置き換え、軽量盛土１０の上に浮力抑制コンクリート１１を敷設して、軽量盛土１０に作用する浮力による軽量盛土１０の浮き上がりを浮力抑制コンクリート１１の重さで抑え、既設鉄塔基礎２の安全率が少なくとも２．００となるように軽量盛土１０の重量を決定して、基礎床板７に作用する圧縮荷重を低減する。【選択図】図２
REINFORCEMENT STRUCTURE OF EXISTING STEEL TOWER FOUNDATION
既設鉄塔基礎の補強構造
FUJIWARA TAKASHI (Autor:in) / NAGASE KAZUTO (Autor:in)
13.03.2023
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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