A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT METHOD
To provide a ground improvement device capable of widening a drilling range and an improvement range of the ground.SOLUTION: In a ground improvement device 10 for performing high-pressure injection of a fluid from an injection nozzle provided in a movable portion 18 in a ground 8 to drill and improve the ground 8, an expandable body 20 that has a fluid passage in which a fluid flows therein and expands in the horizontal direction is provided in an elevating casing 18 as a movable portion. A rotary nozzle 40 that rotates by the reaction force of the fluid ejection force is provided at a tip of a small-diameter tubular body of the expandable body 20. A small-diameter cylindrical body of the expandable body 20 is expandable by the fluid pressure of the fluid injected at high pressure from the rotary nozzle 40.SELECTED DRAWING: Figure 1
【課題】地盤の削孔範囲及び改良範囲を広くできる地盤改良装置を提供する。【解決手段】地盤８中に可動部１８に設けられた噴射ノズルから流体を高圧噴射させて地盤８の削孔と改良を行う地盤改良装置１０において、可動部としての昇降ケーシング１８に、流体が流通する流体通路を内部に有して水平方向に伸縮する伸縮体２０を設け、この伸縮体２０の小径の筒体の先端に流体の噴射力の反力により回転する回転ノズル４０を設け、伸縮体２０の小径の筒体を回転ノズル４０より高圧噴射される流体の流体圧で伸長自在とした。【選択図】図１
GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT METHOD
To provide a ground improvement device capable of widening a drilling range and an improvement range of the ground.SOLUTION: In a ground improvement device 10 for performing high-pressure injection of a fluid from an injection nozzle provided in a movable portion 18 in a ground 8 to drill and improve the ground 8, an expandable body 20 that has a fluid passage in which a fluid flows therein and expands in the horizontal direction is provided in an elevating casing 18 as a movable portion. A rotary nozzle 40 that rotates by the reaction force of the fluid ejection force is provided at a tip of a small-diameter tubular body of the expandable body 20. A small-diameter cylindrical body of the expandable body 20 is expandable by the fluid pressure of the fluid injected at high pressure from the rotary nozzle 40.SELECTED DRAWING: Figure 1
【課題】地盤の削孔範囲及び改良範囲を広くできる地盤改良装置を提供する。【解決手段】地盤８中に可動部１８に設けられた噴射ノズルから流体を高圧噴射させて地盤８の削孔と改良を行う地盤改良装置１０において、可動部としての昇降ケーシング１８に、流体が流通する流体通路を内部に有して水平方向に伸縮する伸縮体２０を設け、この伸縮体２０の小径の筒体の先端に流体の噴射力の反力により回転する回転ノズル４０を設け、伸縮体２０の小径の筒体を回転ノズル４０より高圧噴射される流体の流体圧で伸長自在とした。【選択図】図１
GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT METHOD
地盤改良装置及び地盤改良方法
YABE HIROSHI (author) / TANAKA HATSUICHI (author) / IMAKIRE KENICHI (author)
2020-07-16
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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