Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SUBMERGING INSTALLATION METHOD FOR CYLINDRICAL BODY, AND SUBMERGING INSTALLATION SUPPORT SYSTEM
PROBLEM TO BE SOLVED: To provide a submerging installation method for a cylindrical body that mitigates reactive force exerted on the cylindrical body from a ground when the cylindrical body is installed by submerging in the ground, at the same time clarifying an inclination of the cylindrical body.SOLUTION: A submerging installation method for a cylindrical body includes: a jack press-in step in which the cylindrical body is pressed from above on a ground using a plurality of press-in jacks disposed on outside of the cylindrical body, for pressing-in the cylindrical body into the ground; a high-pressure water injection step in which high-pressure water is injected from an injection nozzle, for scouring a ground around a bottom end part of the cylindrical body; a pressure detection step in which jack pressure of each of the plurality of press-in jacks during the jack press-in step is detected; an inclination detection step in which an inclination of an axial line of the cylindrical body to a vertical direction is detected; a settling amount detection step in which a settling amount of the cylindrical body is detected; and an injection condition setting step in which a range of injection by the injection nozzle in a circumferential direction of the cylindrical body is set, on the basis of a difference in pressure among the plurality of press-in jacks, the inclination of the axial line of the cylindrical body, and the settling amount of the cylindrical body.SELECTED DRAWING: Figure 11
【課題】筒体を地盤に沈降する際に筒体が地盤から受ける反力を低減することができると共に、筒体の傾きを把握することが可能な筒体の沈設方法を提供する。【解決手段】筒体の沈設方法は、地上部で筒体の外側に配置された複数の圧入ジャッキにより、筒体を上方から加圧して、筒体を地盤中に圧入するジャッキ圧入工程と、噴射ノズルから高圧水を噴射させ、筒体の下端部周辺の地盤を洗掘する高圧水噴射工程と、ジャッキ圧入工程における複数の圧入ジャッキのジャッキ圧力をそれぞれ検出する圧力検出工程と、上下方向に対する筒体の軸線の傾きを検出する傾き検出工程と、筒体の沈下量を検出する沈下量検出工程と、複数の圧入ジャッキの圧力の差、筒体の軸線の傾き、及び筒体の沈下量に基づいて、噴射ノズルによる筒体の周方向における噴射の範囲を設定する噴射条件設定工程と、を含む。【選択図】図１１
SUBMERGING INSTALLATION METHOD FOR CYLINDRICAL BODY, AND SUBMERGING INSTALLATION SUPPORT SYSTEM
PROBLEM TO BE SOLVED: To provide a submerging installation method for a cylindrical body that mitigates reactive force exerted on the cylindrical body from a ground when the cylindrical body is installed by submerging in the ground, at the same time clarifying an inclination of the cylindrical body.SOLUTION: A submerging installation method for a cylindrical body includes: a jack press-in step in which the cylindrical body is pressed from above on a ground using a plurality of press-in jacks disposed on outside of the cylindrical body, for pressing-in the cylindrical body into the ground; a high-pressure water injection step in which high-pressure water is injected from an injection nozzle, for scouring a ground around a bottom end part of the cylindrical body; a pressure detection step in which jack pressure of each of the plurality of press-in jacks during the jack press-in step is detected; an inclination detection step in which an inclination of an axial line of the cylindrical body to a vertical direction is detected; a settling amount detection step in which a settling amount of the cylindrical body is detected; and an injection condition setting step in which a range of injection by the injection nozzle in a circumferential direction of the cylindrical body is set, on the basis of a difference in pressure among the plurality of press-in jacks, the inclination of the axial line of the cylindrical body, and the settling amount of the cylindrical body.SELECTED DRAWING: Figure 11
【課題】筒体を地盤に沈降する際に筒体が地盤から受ける反力を低減することができると共に、筒体の傾きを把握することが可能な筒体の沈設方法を提供する。【解決手段】筒体の沈設方法は、地上部で筒体の外側に配置された複数の圧入ジャッキにより、筒体を上方から加圧して、筒体を地盤中に圧入するジャッキ圧入工程と、噴射ノズルから高圧水を噴射させ、筒体の下端部周辺の地盤を洗掘する高圧水噴射工程と、ジャッキ圧入工程における複数の圧入ジャッキのジャッキ圧力をそれぞれ検出する圧力検出工程と、上下方向に対する筒体の軸線の傾きを検出する傾き検出工程と、筒体の沈下量を検出する沈下量検出工程と、複数の圧入ジャッキの圧力の差、筒体の軸線の傾き、及び筒体の沈下量に基づいて、噴射ノズルによる筒体の周方向における噴射の範囲を設定する噴射条件設定工程と、を含む。【選択図】図１１
SUBMERGING INSTALLATION METHOD FOR CYLINDRICAL BODY, AND SUBMERGING INSTALLATION SUPPORT SYSTEM
筒体の沈設方法及び沈設支援システム
KIDA HIROMITSU (Autor:in) / EMORI MICHIO (Autor:in) / HAMADA YOSHIYUKI (Autor:in)
14.12.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Lake submerging and floating floor construction technology
| Europäisches Patentamt | 2024