A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT METHOD AND GROUND INJECTION DEVICE
PROBLEM TO BE SOLVED: To provide a ground improvement method for enabling strengthening and a liquefaction countermeasure of the fine-grained soil ground of existing outside of an injectable limit.SOLUTION: A fluid injection material is pressed in the ground by a piston cylinder 3 via a filling pipe 4. Loading and negative pressure are alternately imparted to the ground by repeating press-in and suction by reciprocating a piston 3Sof the piston cylinder 3, so that the ground is solidified-strengthened by forming a consolidated body by mixing a soil particle and the injection material in the ground, while releasing joining between the soil particles.SELECTED DRAWING: Figure 4a
【課題】注入可能限界外にある細粒土地盤の強化と液状化対策を可能にした地盤改良工法を提供する。【解決手段】地盤内に流動性注入材を注入管４を介しピストンシリンダー３によって圧入する。ピストンスリンダー３のピストン3S1を往復動させて圧入と吸入を繰り返すことにより、地盤に載荷と負圧を交互に付与することにより、土粒子間の結合を解きながら、土粒子と注入材を地盤中にて混合し、固結体を形成することにより地盤を固結強化する。【選択図】図４ａ
GROUND IMPROVEMENT METHOD AND GROUND INJECTION DEVICE
PROBLEM TO BE SOLVED: To provide a ground improvement method for enabling strengthening and a liquefaction countermeasure of the fine-grained soil ground of existing outside of an injectable limit.SOLUTION: A fluid injection material is pressed in the ground by a piston cylinder 3 via a filling pipe 4. Loading and negative pressure are alternately imparted to the ground by repeating press-in and suction by reciprocating a piston 3Sof the piston cylinder 3, so that the ground is solidified-strengthened by forming a consolidated body by mixing a soil particle and the injection material in the ground, while releasing joining between the soil particles.SELECTED DRAWING: Figure 4a
【課題】注入可能限界外にある細粒土地盤の強化と液状化対策を可能にした地盤改良工法を提供する。【解決手段】地盤内に流動性注入材を注入管４を介しピストンシリンダー３によって圧入する。ピストンスリンダー３のピストン3S1を往復動させて圧入と吸入を繰り返すことにより、地盤に載荷と負圧を交互に付与することにより、土粒子間の結合を解きながら、土粒子と注入材を地盤中にて混合し、固結体を形成することにより地盤を固結強化する。【選択図】図４ａ
GROUND IMPROVEMENT METHOD AND GROUND INJECTION DEVICE
地盤改良工法および地盤注入装置
SHIMADA SHUNSUKE (author) / SASAKI TAKAMITSU (author) / KOYAMA TADAO (author) / TSUNODA YURIKA (author) / KIJIMA TADASHI (author)
2017-05-25
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
INJECTION DEVICE FOR NATURAL GROUND IMPROVEMENT AND NATURAL GROUND IMPROVEMENT METHOD
| European Patent Office | 2020
GROUND IMPROVEMENT METHOD BY CHEMICAL INJECTION, AND GROUND IMPROVEMENT OPTIMIZATION METHOD
| European Patent Office | 2016
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT SYSTEM, AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2020