Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION DEVICE, AND DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION METHOD
To solve a problem that recovery of a steel ball becomes necessary and a work requires time at every construction work of a ground improvement body.SOLUTION: A double pipe high pressure injection agitation device of this invention comprises a rod 10 including: a first flow channel 13 for making hole drilling water and compressed air flow; a second flow channel 14 for making solidification material slurry flow; and a monitor portion 12 provided at a lower end portion of the rod. The monitor portion 12 comprises: a discharge hole 24 discharging the hole drilling water downwardly; a nozzle portion 23 making the compressed air and the solidification material slurry jet; and a switching valve 31 provided so as to be movable in a vertical direction at a lower end of the monitor portion 12 and switching an opening and closing state of the discharge hole. The switching valve 31 opens the discharge hole 24 by moving upwardly by an earth pressure when making the rod 10 penetrate into a ground, and closes the discharge hole 24 by receiving pressure of the compressed air and moving downwardly.SELECTED DRAWING: Figure 2
【課題】地盤改良体の造成作業のたびにスチールボールの回収が必要となり、作業に時間がかかっていた。【解決手段】本発明の二重管高圧噴射攪拌装置は、削孔水および圧縮空気を流すための第１流路１３と、固化材スラリーを流すための第２流路１４と、ロッドの下端部に設けられたモニタ部１２と、を備えるロッド１０を具備する。モニタ部１２は、削孔水を下方に吐出させる吐出孔２４と、圧縮空気と固化材スラリーを噴射させるノズル部２３と、モニタ部１２の下端に上下方向に移動可能に設けられ、吐出孔の開閉状態を切り換える切換弁３１と、を備える。切換弁３１は、ロッド１０を地盤に貫入する際の土圧によって上方に移動することによって吐出孔２４を開孔するとともに、圧縮空気の圧力を受けて下方に移動することによって吐出孔２４を閉孔する。【選択図】図２
DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION DEVICE, AND DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION METHOD
To solve a problem that recovery of a steel ball becomes necessary and a work requires time at every construction work of a ground improvement body.SOLUTION: A double pipe high pressure injection agitation device of this invention comprises a rod 10 including: a first flow channel 13 for making hole drilling water and compressed air flow; a second flow channel 14 for making solidification material slurry flow; and a monitor portion 12 provided at a lower end portion of the rod. The monitor portion 12 comprises: a discharge hole 24 discharging the hole drilling water downwardly; a nozzle portion 23 making the compressed air and the solidification material slurry jet; and a switching valve 31 provided so as to be movable in a vertical direction at a lower end of the monitor portion 12 and switching an opening and closing state of the discharge hole. The switching valve 31 opens the discharge hole 24 by moving upwardly by an earth pressure when making the rod 10 penetrate into a ground, and closes the discharge hole 24 by receiving pressure of the compressed air and moving downwardly.SELECTED DRAWING: Figure 2
【課題】地盤改良体の造成作業のたびにスチールボールの回収が必要となり、作業に時間がかかっていた。【解決手段】本発明の二重管高圧噴射攪拌装置は、削孔水および圧縮空気を流すための第１流路１３と、固化材スラリーを流すための第２流路１４と、ロッドの下端部に設けられたモニタ部１２と、を備えるロッド１０を具備する。モニタ部１２は、削孔水を下方に吐出させる吐出孔２４と、圧縮空気と固化材スラリーを噴射させるノズル部２３と、モニタ部１２の下端に上下方向に移動可能に設けられ、吐出孔の開閉状態を切り換える切換弁３１と、を備える。切換弁３１は、ロッド１０を地盤に貫入する際の土圧によって上方に移動することによって吐出孔２４を開孔するとともに、圧縮空気の圧力を受けて下方に移動することによって吐出孔２４を閉孔する。【選択図】図２
DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION DEVICE, AND DOUBLE PIPE HIGH PRESSURE INJECTION AGITATION METHOD
二重管高圧噴射攪拌装置および二重管高圧噴射攪拌工法
TAKANO YOSHIO (Autor:in)
25.07.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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