A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FOUNDATION FOOT PROTECTION STRUCTURE, AND FOUNDATION FOOT PROTECTION METHOD
To provide a foundation foot protection structure and a foundation foot protection method whose construction cost is low and which can prevent decrease of a peripheral surface friction force.SOLUTION: An inorganic granular material 5 comprising limestone powder, water, and a water reducing agent is filled into a loose ground 3 around a monopile 1 while installing the monopile 1 into the ground 3. The monopile 1 is embedded down to a prescribed depth in the ground 3, and the ground 3 in contact with its outer peripheral surface is wholly replaced with the inorganic granular material 5. The inorganic granular material 5 is filled into a range with a substantially constant thickness around an embedded portion of the monopile 1. When a load in a horizontal direction represented by an arrow A is applied due to natural force such as wave and wind, the monopile 1 is displaced largely to the right as going toward an upper end, and deforms so that a void is not generated between the monopile 1 and the ground 3 in a range where the ground 3 is replaced with the inorganic granular material 5 around the monopile 1, to rapidly increase rigidity. When the load is eliminated, the inorganic granular material 5 returns to the original shape.SELECTED DRAWING: Figure 2
【課題】施工費が安価で周面摩擦力の低下を防止できる基礎の根固め構造および基礎の根固め方法を提供する。【解決手段】地盤３にモノパイル１を設置しつつ、モノパイル１の周囲の緩んだ地盤３に石灰石粉と水と減水剤とからなる無機粒体材料５を充填する。モノパイル１は地盤３の所定の深さまで根入れされ、外周面に接触する地盤３が全て無機粒体材料５で置き換えられる。無機粒体材料５は、モノパイル１の根入れ部分の周囲の略一定の厚さの範囲に充填される。波浪や風などの自然力によって矢印Ａに示す水平方向の荷重が作用すると、モノパイル１は上端に近づくほど右に大きく変位し、モノパイル１の周囲の無機粒体材料５が地盤３と置き換えられた範囲内でモノパイル１と地盤３との間に空洞が発生しないように変形して剛性が急激に増大する。無機粒体材料５は荷重が解消されると元の形に戻る。【選択図】図２
FOUNDATION FOOT PROTECTION STRUCTURE, AND FOUNDATION FOOT PROTECTION METHOD
To provide a foundation foot protection structure and a foundation foot protection method whose construction cost is low and which can prevent decrease of a peripheral surface friction force.SOLUTION: An inorganic granular material 5 comprising limestone powder, water, and a water reducing agent is filled into a loose ground 3 around a monopile 1 while installing the monopile 1 into the ground 3. The monopile 1 is embedded down to a prescribed depth in the ground 3, and the ground 3 in contact with its outer peripheral surface is wholly replaced with the inorganic granular material 5. The inorganic granular material 5 is filled into a range with a substantially constant thickness around an embedded portion of the monopile 1. When a load in a horizontal direction represented by an arrow A is applied due to natural force such as wave and wind, the monopile 1 is displaced largely to the right as going toward an upper end, and deforms so that a void is not generated between the monopile 1 and the ground 3 in a range where the ground 3 is replaced with the inorganic granular material 5 around the monopile 1, to rapidly increase rigidity. When the load is eliminated, the inorganic granular material 5 returns to the original shape.SELECTED DRAWING: Figure 2
【課題】施工費が安価で周面摩擦力の低下を防止できる基礎の根固め構造および基礎の根固め方法を提供する。【解決手段】地盤３にモノパイル１を設置しつつ、モノパイル１の周囲の緩んだ地盤３に石灰石粉と水と減水剤とからなる無機粒体材料５を充填する。モノパイル１は地盤３の所定の深さまで根入れされ、外周面に接触する地盤３が全て無機粒体材料５で置き換えられる。無機粒体材料５は、モノパイル１の根入れ部分の周囲の略一定の厚さの範囲に充填される。波浪や風などの自然力によって矢印Ａに示す水平方向の荷重が作用すると、モノパイル１は上端に近づくほど右に大きく変位し、モノパイル１の周囲の無機粒体材料５が地盤３と置き換えられた範囲内でモノパイル１と地盤３との間に空洞が発生しないように変形して剛性が急激に増大する。無機粒体材料５は荷重が解消されると元の形に戻る。【選択図】図２
FOUNDATION FOOT PROTECTION STRUCTURE, AND FOUNDATION FOOT PROTECTION METHOD
基礎の根固め構造および基礎の根固め方法
KAWANO KENICHI (author) / FUJISAKI KATSUTOSHI (author) / NAGATANI HIDEMOTO (author) / OKAMOTO MICHITAKA (author) / TSUJI RYOSUKE (author) / NAKAMOTO SHION (author)
2021-12-13
Patent
Electronic Resource
Japanese
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