A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND HARDENER INJECTION METHOD
To solve the conventional problem, that is, as a ground hardener for forming a hardening layer is injected by superhigh pressure, and an injecting and filling process is carried out simultaneously with cutting, much of the ground hardener is discharged as sludge from a pit to be wasted before the injecting and filling process, and discharging of slime caused by forcible agitation not compatible to a ground structure forms an unbalance fusion layer.SOLUTION: A cavity region S is formed corresponding to the structure of a target ground by rotating a rod 1 downward or upward while injecting fresh water from a core nozzle 21 of a polymerization injection nozzle and air from a surrounding nozzle 22. Thus, discharge energy of the hardener injected by superhigh pressure is absorbed in the cavity region S.SELECTED DRAWING: Figure 4
【課題】従来、硬化層造成のための地盤硬化材が超高圧によって噴射され、切削と同時に注入充填が行われるため、その多くが注入充填以前に排泥としてピットから排出されて無駄となると共に、地盤構造に対応しない強制撹拌によるスライムの排出が不均衡融合層を生み出す問題があった。【解決手段】重合噴射ノズルの核ノズル２１から清水、囲周ノズル２２からエアを噴射しつつロッド１を回転下降若しくは上昇させて空隙域Ｓを対象地盤の構造に対応して造成することにより、超高圧によって噴射される硬化材の排出エネルギーを前記空隙域Ｓに吸収させるようにした。【選択図】図４
GROUND HARDENER INJECTION METHOD
To solve the conventional problem, that is, as a ground hardener for forming a hardening layer is injected by superhigh pressure, and an injecting and filling process is carried out simultaneously with cutting, much of the ground hardener is discharged as sludge from a pit to be wasted before the injecting and filling process, and discharging of slime caused by forcible agitation not compatible to a ground structure forms an unbalance fusion layer.SOLUTION: A cavity region S is formed corresponding to the structure of a target ground by rotating a rod 1 downward or upward while injecting fresh water from a core nozzle 21 of a polymerization injection nozzle and air from a surrounding nozzle 22. Thus, discharge energy of the hardener injected by superhigh pressure is absorbed in the cavity region S.SELECTED DRAWING: Figure 4
【課題】従来、硬化層造成のための地盤硬化材が超高圧によって噴射され、切削と同時に注入充填が行われるため、その多くが注入充填以前に排泥としてピットから排出されて無駄となると共に、地盤構造に対応しない強制撹拌によるスライムの排出が不均衡融合層を生み出す問題があった。【解決手段】重合噴射ノズルの核ノズル２１から清水、囲周ノズル２２からエアを噴射しつつロッド１を回転下降若しくは上昇させて空隙域Ｓを対象地盤の構造に対応して造成することにより、超高圧によって噴射される硬化材の排出エネルギーを前記空隙域Ｓに吸収させるようにした。【選択図】図４
GROUND HARDENER INJECTION METHOD
地盤硬化材注入工法
NAKANISHI YASUHARU (author) / FUKADA SHINICHI (author) / KOMAKI TAKAHIRO (author) / NIIZAKA TAKASHI (author)
2019-07-11
Patent
Electronic Resource
Japanese
IPC:
E02D
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