Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND UPTAKE COMPACTION METHOD AND GROUND IMPROVEMENT BODY
To provide a compaction method capable of suppressing ground displacement such as upheaval associated with construction.SOLUTION: An improvement material is press-fitted into the ground via an injection pipe, and the injection pipe is moved back and forth so that the ground is taken into an inside of the press-fitted improvement material (improvement body under construction). As a result, the ground can be taken into an interior of the improvement body during construction, so the volume of the improvement body becomes larger than the volume of the press-fitted improvement material. Then, since the size of the improvement body is larger than the press-fitted volume, a press-fitting amount of the improvement material can be reduced. By reducing the press-fitting amount, the construction period is shortened and the economy is increased. When moving back and forth the injection pipe, the injection pipe is moved back and forth so that a gap is created between the retracted injection pipe tip and the improvement body in the process of being constructed. Further, after the injection pipe is retracted, an interval time is provided, and after that, the injection pipe is advanced. By moving the injection pipe back and forth in this way, the ground can easily flow into the improvement body that is being constructed, and a large amount of ground can be taken inside.SELECTED DRAWING: Figure 3
【課題】施工に伴う隆起等の地盤変位を抑制可能な締固め工法を提供する。【解決手段】注入管を介して改良材を地盤内に圧入して、圧入済み改良材（造成中の改良体）の内部に地盤が取り込まれるように注入管を進退動させる。これにより、造成中の改良体内部に地盤を取り込めるため、圧入した改良材の体積以上に、改良体の体積が大きくなる。そして、圧入体積以上に改良体が大きくなることで、改良材の圧入量を減らすことができる。圧入量が減ることで、工期短縮につながり経済性が増す。注入管を進退動させる際には、後退させた注入管先端と造成途中の改良体との間に間隔が生じるように、注入管を進退動させる。又、注入管の後退させた後に、インターバル時間を設け、その経過後に注入管を前進させる。このように注入管を進退動させることで、造成している改良体内部に地盤が流入しやすくなり、多くの地盤をその内部に取り込むことができる。【選択図】図３
GROUND UPTAKE COMPACTION METHOD AND GROUND IMPROVEMENT BODY
To provide a compaction method capable of suppressing ground displacement such as upheaval associated with construction.SOLUTION: An improvement material is press-fitted into the ground via an injection pipe, and the injection pipe is moved back and forth so that the ground is taken into an inside of the press-fitted improvement material (improvement body under construction). As a result, the ground can be taken into an interior of the improvement body during construction, so the volume of the improvement body becomes larger than the volume of the press-fitted improvement material. Then, since the size of the improvement body is larger than the press-fitted volume, a press-fitting amount of the improvement material can be reduced. By reducing the press-fitting amount, the construction period is shortened and the economy is increased. When moving back and forth the injection pipe, the injection pipe is moved back and forth so that a gap is created between the retracted injection pipe tip and the improvement body in the process of being constructed. Further, after the injection pipe is retracted, an interval time is provided, and after that, the injection pipe is advanced. By moving the injection pipe back and forth in this way, the ground can easily flow into the improvement body that is being constructed, and a large amount of ground can be taken inside.SELECTED DRAWING: Figure 3
【課題】施工に伴う隆起等の地盤変位を抑制可能な締固め工法を提供する。【解決手段】注入管を介して改良材を地盤内に圧入して、圧入済み改良材（造成中の改良体）の内部に地盤が取り込まれるように注入管を進退動させる。これにより、造成中の改良体内部に地盤を取り込めるため、圧入した改良材の体積以上に、改良体の体積が大きくなる。そして、圧入体積以上に改良体が大きくなることで、改良材の圧入量を減らすことができる。圧入量が減ることで、工期短縮につながり経済性が増す。注入管を進退動させる際には、後退させた注入管先端と造成途中の改良体との間に間隔が生じるように、注入管を進退動させる。又、注入管の後退させた後に、インターバル時間を設け、その経過後に注入管を前進させる。このように注入管を進退動させることで、造成している改良体内部に地盤が流入しやすくなり、多くの地盤をその内部に取り込むことができる。【選択図】図３
GROUND UPTAKE COMPACTION METHOD AND GROUND IMPROVEMENT BODY
地盤取り込み式の締固め工法、地盤改良体
YAMAZAKI HIROYUKI (Autor:in) / SASA SHINJI (Autor:in) / ZEN KOUKI (Autor:in) / NIIZAKA TAKASHI (Autor:in) / TAKENOUCHI HIROSHI (Autor:in) / MOROHASHI HIROKI (Autor:in) / KONISHI TAKESHI (Autor:in) / ADACHI MASAKI (Autor:in) / TAKADA KEITA (Autor:in) / WATANABE SHINGO (Autor:in)
20.08.2020
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND IMPROVEMENT METHOD BY CONSTRUCTING COMPACTION PILE
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