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
PROBLEM TO BE SOLVED: To bore the ground by rotating a drilling rod with a drilling blade without using an external power device.SOLUTION: A ground improvement device comprises: a drilling rod 12; drilling blades 26, 27, which are fitted on the drilling rod 12; and an injection nozzle 13, which is disposed on the drilling blades 26, 27. The drilling blades 26, 27 can rotate into a blade expansion state to the drilling rod 12 and rotate around the drilling rod 12 by a reaction force based on the injection of drilling fluid from the injection nozzle 13.SELECTED DRAWING: Figure 1
【課題】 掘削翼を備える掘削ロッドを、外部動力装置を用いずに、回転させ削孔するようにする。【解決手段】 掘削ロッド１２と、該掘削ロッド１２に取り付けられる掘削翼２６，２７と、該掘削翼２６，２７に設けられる噴射ノズル１３と、を備え、該噴射ノズル１３からの掘削流体の噴射に基づく反力によって、前記掘削翼２６，２７が、前記掘削ロッド１２に対して開いた拡翼状態へと回動可能且つ前記掘削ロッド１２を中心として回動可能とされている。【選択図】 図１
GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT METHOD
PROBLEM TO BE SOLVED: To bore the ground by rotating a drilling rod with a drilling blade without using an external power device.SOLUTION: A ground improvement device comprises: a drilling rod 12; drilling blades 26, 27, which are fitted on the drilling rod 12; and an injection nozzle 13, which is disposed on the drilling blades 26, 27. The drilling blades 26, 27 can rotate into a blade expansion state to the drilling rod 12 and rotate around the drilling rod 12 by a reaction force based on the injection of drilling fluid from the injection nozzle 13.SELECTED DRAWING: Figure 1
【課題】 掘削翼を備える掘削ロッドを、外部動力装置を用いずに、回転させ削孔するようにする。【解決手段】 掘削ロッド１２と、該掘削ロッド１２に取り付けられる掘削翼２６，２７と、該掘削翼２６，２７に設けられる噴射ノズル１３と、を備え、該噴射ノズル１３からの掘削流体の噴射に基づく反力によって、前記掘削翼２６，２７が、前記掘削ロッド１２に対して開いた拡翼状態へと回動可能且つ前記掘削ロッド１２を中心として回動可能とされている。【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
NASU TAKEO (author)
2018-01-11
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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