A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
AGITATION DEVICE
To reduce construction costs by improving the ground after removing existing piles to have the same strength and rigidity as the surrounding ground.SOLUTION: An agitation device comprises: a rotating shaft 34 coaxially connected to a casing 24 at a lower end of the casing 24 so as to be integrally rotatable with the casing 24 and provided with a discharge port 3402B at a lower end thereof; a set of excavation blades 36 provided at the lower end of the rotating shaft 34 so as to be integrally rotatable with the rotating shaft 34; a drum 38 rotatably supported coaxially with and rotatably with the rotating shaft 34 at a position of the rotating shaft 34 above the set of excavation blades 36; a set of drum rotation prevention plates 40 that penetrates an inner wall of a pile removal hole and prevents rotation of the drum 38; a set of upper fixed blades 42 and a set of lower fixed blades 44 supported by an inner peripheral portion of the drum 38 and arranged radially inside the drum 38; a set of upper agitating blades 46 and a set of lower agitating blades 48 provided on the rotating shaft 34 so as to be integrally rotatable with the rotating shaft 34; and consolidation pipes 5006 connecting injection pipes 2402 provided in the casing 24 and a discharge port 3402B.SELECTED DRAWING: Figure 2
【課題】既存杭の撤去後の地盤を周辺の地盤と同等の強度、剛性に改良し、施工コストの低減を図る。【解決手段】ケーシング２４の下端にケーシング２４と同軸上でケーシング２４に一体回転可能に連結され、下端に吐出口３４０２Ｂが設けられた回転軸３４と、回転軸３４の下端に回転軸３４と一体回転可能に設けられた掘削翼３６と、掘削翼３６の上方の回転軸３４の箇所に回転軸３４と同軸上で回転可能に支持されたドラム３８と、杭抜き孔の内壁に侵入しドラム３８の回転を阻止するドラム回転防止板４０と、ドラム３８の内周部で支持されドラム３８の半径方向内側に配置された上部固定翼４２および下部固定翼４４と、回転軸３４に回転軸３４と一体回転可能に設けられた上部撹拌翼４６および下部撹拌翼４８と、ケーシング２４に設けられた注入管２４０２と吐出口３４０２Ｂを接続する集約管５００６とを備える。【選択図】図２
AGITATION DEVICE
To reduce construction costs by improving the ground after removing existing piles to have the same strength and rigidity as the surrounding ground.SOLUTION: An agitation device comprises: a rotating shaft 34 coaxially connected to a casing 24 at a lower end of the casing 24 so as to be integrally rotatable with the casing 24 and provided with a discharge port 3402B at a lower end thereof; a set of excavation blades 36 provided at the lower end of the rotating shaft 34 so as to be integrally rotatable with the rotating shaft 34; a drum 38 rotatably supported coaxially with and rotatably with the rotating shaft 34 at a position of the rotating shaft 34 above the set of excavation blades 36; a set of drum rotation prevention plates 40 that penetrates an inner wall of a pile removal hole and prevents rotation of the drum 38; a set of upper fixed blades 42 and a set of lower fixed blades 44 supported by an inner peripheral portion of the drum 38 and arranged radially inside the drum 38; a set of upper agitating blades 46 and a set of lower agitating blades 48 provided on the rotating shaft 34 so as to be integrally rotatable with the rotating shaft 34; and consolidation pipes 5006 connecting injection pipes 2402 provided in the casing 24 and a discharge port 3402B.SELECTED DRAWING: Figure 2
【課題】既存杭の撤去後の地盤を周辺の地盤と同等の強度、剛性に改良し、施工コストの低減を図る。【解決手段】ケーシング２４の下端にケーシング２４と同軸上でケーシング２４に一体回転可能に連結され、下端に吐出口３４０２Ｂが設けられた回転軸３４と、回転軸３４の下端に回転軸３４と一体回転可能に設けられた掘削翼３６と、掘削翼３６の上方の回転軸３４の箇所に回転軸３４と同軸上で回転可能に支持されたドラム３８と、杭抜き孔の内壁に侵入しドラム３８の回転を阻止するドラム回転防止板４０と、ドラム３８の内周部で支持されドラム３８の半径方向内側に配置された上部固定翼４２および下部固定翼４４と、回転軸３４に回転軸３４と一体回転可能に設けられた上部撹拌翼４６および下部撹拌翼４８と、ケーシング２４に設けられた注入管２４０２と吐出口３４０２Ｂを接続する集約管５００６とを備える。【選択図】図２
AGITATION DEVICE
撹拌装置
KITAJIMA AKIRA (author) / MISHIMA SHINYA (author) / MARU TAKAHIRO (author) / MIYAZAWA SHO (author) / TOSAUCHI YUSUKE (author) / CHIGUSA NOBUYUKI (author) / ASANO KOJI (author) / HASEGAWA TAKUMA (author)
2021-10-28
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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