Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR INJECTING FOUNDATION IMPROVEMENT CHEMICAL
To provide a method for injecting a foundation improvement chemical which suppresses gelation and settlement of a chemical during injection to foundation, and can perform appropriate construction according to a site condition.SOLUTION: A reference range of a gel time of a foundation improvement liquid L is set based on one injection time from injection start to injection end of a foundation improvement liquid L from an injection port 11a of chemical injection means 10 arranged in a target region to a target region. A practical range of the gel time is determined based on the set reference range and a previously acquired coefficient of permeability of the target region, and the foundation improvement liquid L in which the gel time is adjusted to the practical range is injected to the target region of foundation G to form an improvement body I in the target region.SELECTED DRAWING: Figure 1
【課題】地盤に注入中の薬液のゲル化および沈降を抑制して、現地条件に応じた適切な施工を行うことができる地盤改良薬液の注入方法を提供する。【解決手段】対象領域に配置した薬液注入手段１０の注入口１１ａから対象領域への地盤改良薬液Ｌの注入開始から注入終了までの１回の注入時間に基づいて、地盤改良薬液Ｌのゲルタイムの基準範囲を設定する。そして、設定した基準範囲と事前に取得した対象領域の透水係数とに基づいてゲルタイムの実用範囲を決定し、ゲルタイムが実用範囲内に調整された地盤改良薬液Ｌを地盤Ｇの対象領域に注入して対象領域に改良体Ｉを形成する。【選択図】図１
METHOD FOR INJECTING FOUNDATION IMPROVEMENT CHEMICAL
To provide a method for injecting a foundation improvement chemical which suppresses gelation and settlement of a chemical during injection to foundation, and can perform appropriate construction according to a site condition.SOLUTION: A reference range of a gel time of a foundation improvement liquid L is set based on one injection time from injection start to injection end of a foundation improvement liquid L from an injection port 11a of chemical injection means 10 arranged in a target region to a target region. A practical range of the gel time is determined based on the set reference range and a previously acquired coefficient of permeability of the target region, and the foundation improvement liquid L in which the gel time is adjusted to the practical range is injected to the target region of foundation G to form an improvement body I in the target region.SELECTED DRAWING: Figure 1
【課題】地盤に注入中の薬液のゲル化および沈降を抑制して、現地条件に応じた適切な施工を行うことができる地盤改良薬液の注入方法を提供する。【解決手段】対象領域に配置した薬液注入手段１０の注入口１１ａから対象領域への地盤改良薬液Ｌの注入開始から注入終了までの１回の注入時間に基づいて、地盤改良薬液Ｌのゲルタイムの基準範囲を設定する。そして、設定した基準範囲と事前に取得した対象領域の透水係数とに基づいてゲルタイムの実用範囲を決定し、ゲルタイムが実用範囲内に調整された地盤改良薬液Ｌを地盤Ｇの対象領域に注入して対象領域に改良体Ｉを形成する。【選択図】図１
METHOD FOR INJECTING FOUNDATION IMPROVEMENT CHEMICAL
地盤改良薬液の注入方法
KUWAHARA TAKUMA (Autor:in) / SATO KOJI (Autor:in) / MITARAI YOSHIO (Autor:in) / AKIMOTO TEPPEI (Autor:in)
06.06.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND IMPROVEMENT METHOD BY INJECTING CHEMICAL LIQUID AND GROUND IMPROVEMENT OPTIMIZATION METHOD
| Europäisches Patentamt | 2017