A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD AND SYSTEM FOR CONFIRMING GROUND IMPROVEMENT RANGE IN HIGH PRESSURE INJECTION AGITATION METHOD
To provide a method and a system capable of simply and accurately confirming the ground improvement range in real time during construction in a high pressure injection agitation method.SOLUTION: A method for confirming the ground improvement range in high-pressure injection agitation method in which ground improvement is carried out by high pressure injection of fluid by means of a production pipe 11 comprises a step of installing measuring bodies 2A, 2B, 2C, 2D in the ground so as to extend parallel to the production pipe 11, a step of detecting elastic waves generated in the measuring bodies 2A, 2B, 2C, 2D by a high pressure jetting body J jetted from the production pipe 11 making contact with the measuring bodies 2A, 2B, 2C, 2D by elastic wave sensors 3A, 3B, 3C, 3D attached to a head of the measuring bodies 2A, 2B, 2C, 2D, and a step of confirming the ground improvement range on basis of high frequency components of the detected elastic waves. The high frequency components are included in the range of 50 kHz to 1000 kHz.SELECTED DRAWING: Figure 1
【課題】高圧噴射撹拌工法において施工中にリアルタイムで地盤改良範囲を簡易かつ正確に確認することが可能な方法及びシステムを提供する。【解決手段】造成管１１により流体を高圧噴射して地盤改良を行う高圧噴射撹拌工法における地盤改良範囲を確認する方法であって、造成管１１と平行に延在するように計測体２Ａ、２Ｂ、２Ｃ、２Ｄを地盤中に建て込み、造成管１１から噴射された高圧噴射体Ｊが計測体２Ａ、２Ｂ、２Ｃ、２Ｄに接触することにより計測体２Ａ、２Ｂ、２Ｃ、２Ｄに発生する弾性波を計測体２Ａ、２Ｂ、２Ｃ、２Ｄの頭部に取り付けられた弾性波センサ３Ａ、３Ｂ、３Ｃ、３Ｄにより検知し、検知された弾性波の高周波成分を基に地盤改良範囲を確認する。高周波成分が５０ｋＨｚ〜１０００ｋＨｚの範囲に含まれる。【選択図】図１
METHOD AND SYSTEM FOR CONFIRMING GROUND IMPROVEMENT RANGE IN HIGH PRESSURE INJECTION AGITATION METHOD
To provide a method and a system capable of simply and accurately confirming the ground improvement range in real time during construction in a high pressure injection agitation method.SOLUTION: A method for confirming the ground improvement range in high-pressure injection agitation method in which ground improvement is carried out by high pressure injection of fluid by means of a production pipe 11 comprises a step of installing measuring bodies 2A, 2B, 2C, 2D in the ground so as to extend parallel to the production pipe 11, a step of detecting elastic waves generated in the measuring bodies 2A, 2B, 2C, 2D by a high pressure jetting body J jetted from the production pipe 11 making contact with the measuring bodies 2A, 2B, 2C, 2D by elastic wave sensors 3A, 3B, 3C, 3D attached to a head of the measuring bodies 2A, 2B, 2C, 2D, and a step of confirming the ground improvement range on basis of high frequency components of the detected elastic waves. The high frequency components are included in the range of 50 kHz to 1000 kHz.SELECTED DRAWING: Figure 1
【課題】高圧噴射撹拌工法において施工中にリアルタイムで地盤改良範囲を簡易かつ正確に確認することが可能な方法及びシステムを提供する。【解決手段】造成管１１により流体を高圧噴射して地盤改良を行う高圧噴射撹拌工法における地盤改良範囲を確認する方法であって、造成管１１と平行に延在するように計測体２Ａ、２Ｂ、２Ｃ、２Ｄを地盤中に建て込み、造成管１１から噴射された高圧噴射体Ｊが計測体２Ａ、２Ｂ、２Ｃ、２Ｄに接触することにより計測体２Ａ、２Ｂ、２Ｃ、２Ｄに発生する弾性波を計測体２Ａ、２Ｂ、２Ｃ、２Ｄの頭部に取り付けられた弾性波センサ３Ａ、３Ｂ、３Ｃ、３Ｄにより検知し、検知された弾性波の高周波成分を基に地盤改良範囲を確認する。高周波成分が５０ｋＨｚ〜１０００ｋＨｚの範囲に含まれる。【選択図】図１
METHOD AND SYSTEM FOR CONFIRMING GROUND IMPROVEMENT RANGE IN HIGH PRESSURE INJECTION AGITATION METHOD
高圧噴射撹拌工法における地盤改良範囲確認方法及びシステム
HAMADA MAKOTO (author) / TSUTSUMI KOHEI (author) / OKADA HIROSHI (author)
2018-12-20
Patent
Electronic Resource
Japanese
GROUND IMPROVEMENT METHOD BY HIGH PRESSURE INJECTION AND AGITATION METHOD
| European Patent Office | 2015
| European Patent Office | 2024
| European Patent Office | 2015
HIGH PRESSURE JET AGITATION DEVICE FOR GROUND IMPROVEMENT AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2017
| European Patent Office | 2017