Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND INJECTION METHOD AND GROUND INJECTION DEVICE
PROBLEM TO BE SOLVED: To provide a ground injection method and a ground injection device, which can evenly infiltrate and inject an injection material in the ground around a porous wall at low pressure and in a wide range.SOLUTION: An injection pipe 1 is installed in a borehole 2 and an injection material is infiltrated and injected in the ground around a porous wall. The injection pipe 1 comprises: an injection pipe body 4 which has multiple injection material discharge ports 4a in a pipe axial direction; and a long rubber slit tube 5 which tightly adheres to an outer circumference of the injection pipe body 4 and has multiple injection material injection slits 5a at positions that do not overlap with the injection material discharge ports 4a. The injection material fed to the injection pipe body 4 is infiltrated and injected in the ground around the porous wall by: pressing and widening the long rubber slit tube 5 by discharge pressure from the multiple injection material discharge ports 4a; being discharged between the long rubber slit tube 5 and the injection pipe body 4; flowing in a pipe axial direction and a circumferential direction between the long rubber slit tube 5 and the injection pipe body 4; and being injected at a fluid pressure, which overcomes an elastic force of the long rubber slit tube 5, from the multiple injection material injection slits 5a to the outside of the long rubber slit tube 5.SELECTED DRAWING: Figure 1
【課題】注入材を孔壁周囲の地盤中に低圧力で広範囲かつ均一に浸透注入可能な地盤注入工法及び地盤注入装置を提供する。【解決手段】削孔2内に注入管1を設置して孔壁周囲の地盤中に注入材を浸透注入する。注入管1は管軸方向に複数の注入材吐出口4aを有する注入管本体4と注入管本体4の外周に密着し、かつ注入材吐出口4aと重ならない位置に複数の注入材噴射スリット5aを有する長尺ゴムスリットチューブ5とから構成する。注入管本体4に送液された注入材は複数の注入材吐出口4aから吐出圧によって長尺ゴムスリットチューブ5を押し広げて長尺ゴムスリットチューブ5と注入管本体4間に吐出し、かつ長尺ゴムスリットチューブ5と注入管本体4間を管軸方向及び円周方向に流れ、複数の注入材噴射スリット5aから長尺ゴムスリットチューブ5の外に長尺ゴムスリットチューブ5の弾性力に打ち克つ液圧をもって噴射することにより孔壁周囲の地盤中に浸透注入する。【選択図】図１
GROUND INJECTION METHOD AND GROUND INJECTION DEVICE
PROBLEM TO BE SOLVED: To provide a ground injection method and a ground injection device, which can evenly infiltrate and inject an injection material in the ground around a porous wall at low pressure and in a wide range.SOLUTION: An injection pipe 1 is installed in a borehole 2 and an injection material is infiltrated and injected in the ground around a porous wall. The injection pipe 1 comprises: an injection pipe body 4 which has multiple injection material discharge ports 4a in a pipe axial direction; and a long rubber slit tube 5 which tightly adheres to an outer circumference of the injection pipe body 4 and has multiple injection material injection slits 5a at positions that do not overlap with the injection material discharge ports 4a. The injection material fed to the injection pipe body 4 is infiltrated and injected in the ground around the porous wall by: pressing and widening the long rubber slit tube 5 by discharge pressure from the multiple injection material discharge ports 4a; being discharged between the long rubber slit tube 5 and the injection pipe body 4; flowing in a pipe axial direction and a circumferential direction between the long rubber slit tube 5 and the injection pipe body 4; and being injected at a fluid pressure, which overcomes an elastic force of the long rubber slit tube 5, from the multiple injection material injection slits 5a to the outside of the long rubber slit tube 5.SELECTED DRAWING: Figure 1
【課題】注入材を孔壁周囲の地盤中に低圧力で広範囲かつ均一に浸透注入可能な地盤注入工法及び地盤注入装置を提供する。【解決手段】削孔2内に注入管1を設置して孔壁周囲の地盤中に注入材を浸透注入する。注入管1は管軸方向に複数の注入材吐出口4aを有する注入管本体4と注入管本体4の外周に密着し、かつ注入材吐出口4aと重ならない位置に複数の注入材噴射スリット5aを有する長尺ゴムスリットチューブ5とから構成する。注入管本体4に送液された注入材は複数の注入材吐出口4aから吐出圧によって長尺ゴムスリットチューブ5を押し広げて長尺ゴムスリットチューブ5と注入管本体4間に吐出し、かつ長尺ゴムスリットチューブ5と注入管本体4間を管軸方向及び円周方向に流れ、複数の注入材噴射スリット5aから長尺ゴムスリットチューブ5の外に長尺ゴムスリットチューブ5の弾性力に打ち克つ液圧をもって噴射することにより孔壁周囲の地盤中に浸透注入する。【選択図】図１
GROUND INJECTION METHOD AND GROUND INJECTION DEVICE
地盤注入工法および地盤注入装置
SHIMADA SHUNSUKE (Autor:in) / YAGUCHI SADAHIRO (Autor:in) / TSUNODA YURIKA (Autor:in) / KIJIMA TADASHI (Autor:in)
01.09.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND INJECTION METHOD AND GROUND INJECTION MATERIAL
| Europäisches Patentamt | 2023
GROUND IMPROVEMENT METHOD AND GROUND INJECTION DEVICE
| Europäisches Patentamt | 2017