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A platform for research: civil engineering, architecture and urbanism
INJECTION METHOD OF FLASH-SETTING CURING GROUT
To provide an injection method of flash-setting curing grout in which, by using a force-feed device including a delay timer, time adjustment of an A liquid and a B liquid having different discharge speed is performed by proportional injection and both liquids can be merged and injected simultaneously or with the B liquid preceding the other in a double tube tip part.SOLUTION: In an injection method of flash-setting curing grout, a B liquid is mixed with an A liquid with a ratio of 130-200 L with respect to 1 mof the A liquid and gelation time is within 25 seconds, and uniaxial compressive strength after 3 hours is 1.5 N/mmor greater. A force-feed device used for the B liquid has smaller pump discharge capacity of a force-feed pump, a smaller internal diameter of a force-feed hose, and a smaller cross-sectional area of a double tube than used for the A liquid. The flash-setting curing grout is injected after adjusting so that the arrival time of the A liquid and the B liquid at a tip part of the double tube becomes the same, by delaying the actuation start time of the force-feed pump for the A liquid further than the actuation start time of the force-feed pump for the B liquid with a delay timer.SELECTED DRAWING: Figure 1
【課題】遅延タイマーを備えた圧送装置を用いて、比例注入で異なる吐出速度のＡ液及びＢ液の時間調整を行って両液を二重管先端部に同時又はＢ液を先行させて合流注入が可能な瞬結性硬化グラウトの注入方法を提供する。【解決手段】Ａ液にＢ液を、Ａ液１ｍ3に対して１３０〜２００Ｌの比率で混合してゲル化時間が２５秒以内で、３時間後の一軸圧縮強度が１．５Ｎ／ｍｍ2以上となる瞬結性硬化グラウトの注入方法において、前記Ａ液より前記Ｂ液の方が、圧送ポンプのポンプ吐出能力、圧送ホースの内径、及び二重管内の断面積が小さい圧送装置を用い、遅延タイマーにより前記Ａ液の前記圧送ポンプの作動開始を前記Ｂ液の前記圧送ポンプの作動開始より遅らせて、前記Ａ液と前記Ｂ液の前記二重管の先端部に到達する時間が同時となるように調整して瞬結性硬化グラウトを注入する。【選択図】図１
INJECTION METHOD OF FLASH-SETTING CURING GROUT
To provide an injection method of flash-setting curing grout in which, by using a force-feed device including a delay timer, time adjustment of an A liquid and a B liquid having different discharge speed is performed by proportional injection and both liquids can be merged and injected simultaneously or with the B liquid preceding the other in a double tube tip part.SOLUTION: In an injection method of flash-setting curing grout, a B liquid is mixed with an A liquid with a ratio of 130-200 L with respect to 1 mof the A liquid and gelation time is within 25 seconds, and uniaxial compressive strength after 3 hours is 1.5 N/mmor greater. A force-feed device used for the B liquid has smaller pump discharge capacity of a force-feed pump, a smaller internal diameter of a force-feed hose, and a smaller cross-sectional area of a double tube than used for the A liquid. The flash-setting curing grout is injected after adjusting so that the arrival time of the A liquid and the B liquid at a tip part of the double tube becomes the same, by delaying the actuation start time of the force-feed pump for the A liquid further than the actuation start time of the force-feed pump for the B liquid with a delay timer.SELECTED DRAWING: Figure 1
【課題】遅延タイマーを備えた圧送装置を用いて、比例注入で異なる吐出速度のＡ液及びＢ液の時間調整を行って両液を二重管先端部に同時又はＢ液を先行させて合流注入が可能な瞬結性硬化グラウトの注入方法を提供する。【解決手段】Ａ液にＢ液を、Ａ液１ｍ3に対して１３０〜２００Ｌの比率で混合してゲル化時間が２５秒以内で、３時間後の一軸圧縮強度が１．５Ｎ／ｍｍ2以上となる瞬結性硬化グラウトの注入方法において、前記Ａ液より前記Ｂ液の方が、圧送ポンプのポンプ吐出能力、圧送ホースの内径、及び二重管内の断面積が小さい圧送装置を用い、遅延タイマーにより前記Ａ液の前記圧送ポンプの作動開始を前記Ｂ液の前記圧送ポンプの作動開始より遅らせて、前記Ａ液と前記Ｂ液の前記二重管の先端部に到達する時間が同時となるように調整して瞬結性硬化グラウトを注入する。【選択図】図１
INJECTION METHOD OF FLASH-SETTING CURING GROUT
瞬結性硬化グラウトの注入方法
SHIMODA KAZUO (author) / WAKANA KAZUYUKI (author)
2019-08-29
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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