Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND IMPROVEMENT AGITATION APPARATUS
PROBLEM TO BE SOLVED: To inhibit displacement of a construction position of each columnar improvement body configuring an underground continuous wall from a design position, in a ground improvement agitation apparatus which forms a columnar improvement body by agitating and mixing excavated soil and solidification materials.SOLUTION: A ground improvement agitation apparatus 1 forming each columnar improvement body 20 in an underground continuous wall 30, comprises a rotary axis 2, an excavation blade 3 provided on the tip of the rotary axis 2, and an agitation blade 4 provided above the excavation blade 3 in the rotary axis 2. The agitation blade 4 has an inner agitation vane 5 extending outside from the rotary axis 2 in a radial direction, and an outer agitation vane 6 which is formed in a shape in which agitation resistance is larger than that of the inner agitation vane 5, and which further extends outside from a tip 5a of the inner agitation vane 5 in the radial direction. A distance L1 between a tip 6a of the outer agitation vane 6 and a shaft center SC of the rotary axis 2 is set equally to a design radius R of the columnar improvement body 20, and a length L2 of the outer agitation vane 6 is set equally to a design overlap length Lw of the columnar improvement body 20.SELECTED DRAWING: Figure 6
【課題】掘削土と固化材とを撹拌混合して円柱状改良体を形成する地盤改良攪拌装置において、地中連続壁を構成する各円柱状改良体の施工位置が設計位置からずれるのを抑制する。【解決手段】地中連続壁３０における各円柱状改良体２０を形成する地盤改良攪拌装置１である。回転軸２と、回転軸２の先端部に設けられた掘削翼３と、回転軸２における掘削翼３よりも上方に設けられた攪拌翼４と、を備えている。攪拌翼４は、回転軸２から径方向外側に延びる内側撹拌翼部５と、内側撹拌翼部５よりも撹拌抵抗が大きくなるような形状に形成され、内側撹拌翼部５の先端５ａから更に径方向外側に延びる外側撹拌翼部６と、を有している。外側撹拌翼部６の先端６ａと回転軸２の軸心ＳＣとの距離Ｌ１が、円柱状改良体２０の設計半径Ｒと等しく設定されているとともに、外側撹拌翼部６の長さＬ２が、円柱状改良体２０の設計オーバーラップ長Ｌｗと等しく設定されている。【選択図】図６
GROUND IMPROVEMENT AGITATION APPARATUS
PROBLEM TO BE SOLVED: To inhibit displacement of a construction position of each columnar improvement body configuring an underground continuous wall from a design position, in a ground improvement agitation apparatus which forms a columnar improvement body by agitating and mixing excavated soil and solidification materials.SOLUTION: A ground improvement agitation apparatus 1 forming each columnar improvement body 20 in an underground continuous wall 30, comprises a rotary axis 2, an excavation blade 3 provided on the tip of the rotary axis 2, and an agitation blade 4 provided above the excavation blade 3 in the rotary axis 2. The agitation blade 4 has an inner agitation vane 5 extending outside from the rotary axis 2 in a radial direction, and an outer agitation vane 6 which is formed in a shape in which agitation resistance is larger than that of the inner agitation vane 5, and which further extends outside from a tip 5a of the inner agitation vane 5 in the radial direction. A distance L1 between a tip 6a of the outer agitation vane 6 and a shaft center SC of the rotary axis 2 is set equally to a design radius R of the columnar improvement body 20, and a length L2 of the outer agitation vane 6 is set equally to a design overlap length Lw of the columnar improvement body 20.SELECTED DRAWING: Figure 6
【課題】掘削土と固化材とを撹拌混合して円柱状改良体を形成する地盤改良攪拌装置において、地中連続壁を構成する各円柱状改良体の施工位置が設計位置からずれるのを抑制する。【解決手段】地中連続壁３０における各円柱状改良体２０を形成する地盤改良攪拌装置１である。回転軸２と、回転軸２の先端部に設けられた掘削翼３と、回転軸２における掘削翼３よりも上方に設けられた攪拌翼４と、を備えている。攪拌翼４は、回転軸２から径方向外側に延びる内側撹拌翼部５と、内側撹拌翼部５よりも撹拌抵抗が大きくなるような形状に形成され、内側撹拌翼部５の先端５ａから更に径方向外側に延びる外側撹拌翼部６と、を有している。外側撹拌翼部６の先端６ａと回転軸２の軸心ＳＣとの距離Ｌ１が、円柱状改良体２０の設計半径Ｒと等しく設定されているとともに、外側撹拌翼部６の長さＬ２が、円柱状改良体２０の設計オーバーラップ長Ｌｗと等しく設定されている。【選択図】図６
GROUND IMPROVEMENT AGITATION APPARATUS
地盤改良攪拌装置
YAGI MASAO (Autor:in) / MATSUMOTO YASUSHI (Autor:in) / KATO YUKIMASA (Autor:in) / HATTORI KENJI (Autor:in) / HAYASHI KENTA (Autor:in)
19.07.2018
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
EXCAVATION/AGITATION APPARATUS OF GROUND IMPROVEMENT DEVICE
| Europäisches Patentamt | 2018
GROUND AGITATION MIXING APPARATUS AND SOIL IMPROVEMENT METHOD
| Europäisches Patentamt | 2017
DRILLING AGITATION DEVICE AND GROUND IMPROVEMENT METHOD
| Europäisches Patentamt | 2023