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A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT METHOD AND SMALL-SIZED MEASURING APPARATUS USED IN GROUND IMPROVEMENT METHOD
PROBLEM TO BE SOLVED: To provide a ground improvement method which enables the quality of a solidification improvement body to be checked during establishment of the solidification improvement body and which can establish a predetermined solidification improvement body by mixing and agitating again when a defective point of the quality is confirmed.SOLUTION: In a ground improvement method, as an agitation shaft 5 having an agitating blade 6 and a discharge port 8 installed on the tip side is penetrated or extracted, the agitating blade 6 is rotated while a solidification material is discharged from the discharge port 8, and a natural ground and the solidification material are mixed and agitated by the agitating blade 6 so as to establish a solidification improvement body in the ground. In the ground improvement method, a small-sized measuring apparatus 10 for measuring specific resistance of a solidification improvement body to be established in the ground is attached to the agitating blade 6 and data of specific resistance measured by the small-sized measuring apparatus 10 is transmitted to the ground. On the basis of the transmitted data of specific resistance, the quality of the solidification improvement body is checked, and when a defective point of the quality of the solidification improvement body is confirmed, mixing and agitating are performed while a solidification material is discharged or is not discharged in the defective point.SELECTED DRAWING: Figure 3
【課題】固結改良体の造成中に固結改良体の品質を確認できるようにし、品質の不良箇所を確認したとき、再度混合攪拌して、所定の固結改良体を造成できる地盤改良方法を提供する。【解決手段】先端側に攪拌翼６と吐出口８を設けた攪拌軸５を貫入しながら又は引き抜きながら吐出口８より固化材を吐出しつつ攪拌翼６を回転し、攪拌翼６により原地盤と固化材を混合攪拌して地盤中に固結改良体を造成するようにした地盤改良方法において、攪拌翼６に地盤中に造成する固結改良体の比抵抗を測定する小型測定装置１０を取り付けると共に、この小型測定装置１０にて測定した比抵抗のデータを地上に送信し、この送信された比抵抗のデータに基づいて固結改良体の品質を確認し、固結改良体の品質の不良箇所を確認したとき、この品質の不良箇所に、固化材を吐出することなく又は固化材を吐出しつつ混合攪拌するようにした地盤改良方法である。【選択図】図３
GROUND IMPROVEMENT METHOD AND SMALL-SIZED MEASURING APPARATUS USED IN GROUND IMPROVEMENT METHOD
PROBLEM TO BE SOLVED: To provide a ground improvement method which enables the quality of a solidification improvement body to be checked during establishment of the solidification improvement body and which can establish a predetermined solidification improvement body by mixing and agitating again when a defective point of the quality is confirmed.SOLUTION: In a ground improvement method, as an agitation shaft 5 having an agitating blade 6 and a discharge port 8 installed on the tip side is penetrated or extracted, the agitating blade 6 is rotated while a solidification material is discharged from the discharge port 8, and a natural ground and the solidification material are mixed and agitated by the agitating blade 6 so as to establish a solidification improvement body in the ground. In the ground improvement method, a small-sized measuring apparatus 10 for measuring specific resistance of a solidification improvement body to be established in the ground is attached to the agitating blade 6 and data of specific resistance measured by the small-sized measuring apparatus 10 is transmitted to the ground. On the basis of the transmitted data of specific resistance, the quality of the solidification improvement body is checked, and when a defective point of the quality of the solidification improvement body is confirmed, mixing and agitating are performed while a solidification material is discharged or is not discharged in the defective point.SELECTED DRAWING: Figure 3
【課題】固結改良体の造成中に固結改良体の品質を確認できるようにし、品質の不良箇所を確認したとき、再度混合攪拌して、所定の固結改良体を造成できる地盤改良方法を提供する。【解決手段】先端側に攪拌翼６と吐出口８を設けた攪拌軸５を貫入しながら又は引き抜きながら吐出口８より固化材を吐出しつつ攪拌翼６を回転し、攪拌翼６により原地盤と固化材を混合攪拌して地盤中に固結改良体を造成するようにした地盤改良方法において、攪拌翼６に地盤中に造成する固結改良体の比抵抗を測定する小型測定装置１０を取り付けると共に、この小型測定装置１０にて測定した比抵抗のデータを地上に送信し、この送信された比抵抗のデータに基づいて固結改良体の品質を確認し、固結改良体の品質の不良箇所を確認したとき、この品質の不良箇所に、固化材を吐出することなく又は固化材を吐出しつつ混合攪拌するようにした地盤改良方法である。【選択図】図３
GROUND IMPROVEMENT METHOD AND SMALL-SIZED MEASURING APPARATUS USED IN GROUND IMPROVEMENT METHOD
地盤改良方法及びこの地盤改良方法に用いる小型測定装置
YAMAGUCHI HIROHISA (author) / ENOKIDA MINORU (author) / FUKUSHIMA HIROAKI (author) / WATANABE EIJI (author)
2016-06-20
Patent
Electronic Resource
Japanese
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