A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide an excavation agitation device which can facilitate injecting a solidification material milk into a mixed soil even if a confining pressure acting on the mixed soil increases.SOLUTION: This excavation agitation device comprises: a rotary shaft 6 that is rotated in the ground; an excavation blade 10 that is protrusively provided at a lower end of the rotary shaft 6 and that excavates sediment; a corotation prevention blade 14 that is provided in a position higher by a predetermined distance than the excavation blade 10 in the rotary shaft 6 and that has a boss part loosely fitted to the rotary shaft 6 by going around the rotary shaft 6 and that comes into contact with the natural ground at the tip; a screw body 16 that is provided in a position higher than the corotation prevention blade 14 in the rotary shaft 6 and that conveys sediment in an opposite direction to a traveling direction of the excavation blade 10; a guide cylinder 18 that is supported so as to rotate relative to the rotary shaft 6 and that surrounds the screw body 16; and a turn-stopper plate 20 projecting outward from the guide cylinder 18 and coming into contact with the natural ground.SELECTED DRAWING: Figure 2
【課題】混練土に作用する拘束圧が上昇しても、固化材ミルクを混練土に注入しやすくできる掘削撹拌装置を提供する。【解決手段】本装置は、地中で回転する回転軸６と、回転軸６の下端部に突設され土砂を掘削する掘削翼１０と、回転軸６において掘削翼１０よりも所定距離だけ上方に設けられ、回転軸６を周回し回転軸６に対して遊嵌されるボス部を有し、先端部が地山に接触する共回り防止翼１４と、共回り防止翼１４よりも上方において回転軸６に設けられ、かつ掘削翼１０の進行方向とは逆向きに土砂を運搬するスクリュー本体１６と、回転軸６に対して回転自在に支持され、かつスクリュー本体１６を包囲する案内筒１８と、案内筒１８から外向きに突出し、地山に接触する回り止め板２０とを有する。【選択図】図２
PROBLEM TO BE SOLVED: To provide an excavation agitation device which can facilitate injecting a solidification material milk into a mixed soil even if a confining pressure acting on the mixed soil increases.SOLUTION: This excavation agitation device comprises: a rotary shaft 6 that is rotated in the ground; an excavation blade 10 that is protrusively provided at a lower end of the rotary shaft 6 and that excavates sediment; a corotation prevention blade 14 that is provided in a position higher by a predetermined distance than the excavation blade 10 in the rotary shaft 6 and that has a boss part loosely fitted to the rotary shaft 6 by going around the rotary shaft 6 and that comes into contact with the natural ground at the tip; a screw body 16 that is provided in a position higher than the corotation prevention blade 14 in the rotary shaft 6 and that conveys sediment in an opposite direction to a traveling direction of the excavation blade 10; a guide cylinder 18 that is supported so as to rotate relative to the rotary shaft 6 and that surrounds the screw body 16; and a turn-stopper plate 20 projecting outward from the guide cylinder 18 and coming into contact with the natural ground.SELECTED DRAWING: Figure 2
【課題】混練土に作用する拘束圧が上昇しても、固化材ミルクを混練土に注入しやすくできる掘削撹拌装置を提供する。【解決手段】本装置は、地中で回転する回転軸６と、回転軸６の下端部に突設され土砂を掘削する掘削翼１０と、回転軸６において掘削翼１０よりも所定距離だけ上方に設けられ、回転軸６を周回し回転軸６に対して遊嵌されるボス部を有し、先端部が地山に接触する共回り防止翼１４と、共回り防止翼１４よりも上方において回転軸６に設けられ、かつ掘削翼１０の進行方向とは逆向きに土砂を運搬するスクリュー本体１６と、回転軸６に対して回転自在に支持され、かつスクリュー本体１６を包囲する案内筒１８と、案内筒１８から外向きに突出し、地山に接触する回り止め板２０とを有する。【選択図】図２
EXCAVATION AGITATION DEVICE
掘削撹拌装置
FUKUDA ATSUO (author)
2016-12-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
EXCAVATION AND AGITATION DEVICE AND EXCAVATION AND AGITATION METHOD
| European Patent Office | 2023
EXCAVATION AND AGITATION DEVICE, AND EXCAVATION AND AGITATION METHOD
| European Patent Office | 2023