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A platform for research: civil engineering, architecture and urbanism
CHEMICAL SOLUTION INJECTING METHOD
PROBLEM TO BE SOLVED: To provide a chemical solution injecting method capable of injecting a chemical solution while quantitatively grasping an injection effect of the chemical solution.SOLUTION: A chemical solution injecting method injects a chemical solution into the foundation by dynamically changing a chemical solution injection speed. The method comprises: a process to determine an optimal amplitude value to increase and decrease the chemical solution injection speed for a target foundation into which the chemical solution is injected; a process to determine a dynamic coefficient d calculated from the amplitude coefficient α, which made a relationship between an average injection speed and the optimal amplitude dimensionless, and a frequency f of increase and decrease; and a process to inject the chemical solution based on the relationship between the dynamic coefficient d and the injection effect.SELECTED DRAWING: Figure 1
【課題】薬液の注入効果を定量的に把握したうえで実施することが可能な薬液注入工法を提供する。【解決手段】薬液の注入速度を動的に変化させて地盤中に注入する薬液注入工法である。そして、薬液の注入速度を増減させる振幅の最適な値を薬液注入を行う対象地盤について決定する工程と、平均注入速度と最適な振幅との関係を無次元化した振幅係数αと増減の周波数ｆとを演算した動的係数ｄを決定する工程と、動的係数ｄと注入効果との関係に基づいて薬液注入を行う工程とを備えている。【選択図】図１
CHEMICAL SOLUTION INJECTING METHOD
PROBLEM TO BE SOLVED: To provide a chemical solution injecting method capable of injecting a chemical solution while quantitatively grasping an injection effect of the chemical solution.SOLUTION: A chemical solution injecting method injects a chemical solution into the foundation by dynamically changing a chemical solution injection speed. The method comprises: a process to determine an optimal amplitude value to increase and decrease the chemical solution injection speed for a target foundation into which the chemical solution is injected; a process to determine a dynamic coefficient d calculated from the amplitude coefficient α, which made a relationship between an average injection speed and the optimal amplitude dimensionless, and a frequency f of increase and decrease; and a process to inject the chemical solution based on the relationship between the dynamic coefficient d and the injection effect.SELECTED DRAWING: Figure 1
【課題】薬液の注入効果を定量的に把握したうえで実施することが可能な薬液注入工法を提供する。【解決手段】薬液の注入速度を動的に変化させて地盤中に注入する薬液注入工法である。そして、薬液の注入速度を増減させる振幅の最適な値を薬液注入を行う対象地盤について決定する工程と、平均注入速度と最適な振幅との関係を無次元化した振幅係数αと増減の周波数ｆとを演算した動的係数ｄを決定する工程と、動的係数ｄと注入効果との関係に基づいて薬液注入を行う工程とを備えている。【選択図】図１
CHEMICAL SOLUTION INJECTING METHOD
薬液注入工法
TANAKA TAKUYA (author) / ENDO OSAMU (author) / TATEYAMA MASARU (author) / YAKITA SHINJI (author) / TAKEDA TOSHIHIKO (author) / TAKANO YOSHIO (author)
2017-01-19
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
METHOD FOR INJECTING CHEMICAL SOLUTION, AND CHEMICAL SOLUTION INJECTION PIPE SWITCHING APPARATUS
| European Patent Office | 2019