Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR CONFIRMING BEARING GROUND DURING FOUNDATION PILE CONSTRUCTION AND AUGER FOR THE SAME
To directly measure the bearing capacity of a bearing ground in a state where an auger is inserted into the ground during construction of a foundation pile carried out by using the auger having a helical blade around a rod shaft.SOLUTION: A bearing capacity measurement loading plate 15 is housed so as to project in an auger shaft direction at a tip of an auger 1, the bearing capacity measurement loading plate 15 is projected at a stage where the tip of the auger 1 reaches a bearing layer H, and the settlement of the auger 1 is measured by applying the dead weight of the auger 1. Alternatively, a hydraulic jack 19 is provided inside the tip of the auger 1, the bearing capacity measurement loading plate 15 is born at a piston tip, the hydraulic jack 19 is extended to apply a load on the bearing capacity measurement loading plate 15, and a jack pressure and a jack extension amount are measured in a state where the auger 1 is bound so as not to vertically move at the stage where the tip of the auger 1 reaches the bearing layer H.SELECTED DRAWING: Figure 6
【課題】ロッド軸周りに螺旋状の羽根を備えたオーガーを用いて基礎杭を施工するに当たって、前記オーガーを地中に貫入させた状態のままで、支持地盤の地耐力を直接的に測定する。【解決手段】オーガー１の先端に、オーガー軸芯方向に突出可能に地耐力測定用載荷板１５を収納しておき、オーガー１の先端が支持層Ｈに達した段階で、前記地耐力測定用載荷板１５を突出させた状態とし、オーガー１の自重を作用させてオーガー１の沈下量を測定する。或いはオーガー１の先端に、油圧ジャッキ１９を内設するとともに、ピストン先端に地耐力測定用載荷板１５を支持し、オーガー１の先端が支持層Ｈに達した段階で、オーガー１を上下方向に移動しないように拘束した状態で、前記油圧ジャッキ１９を伸長して地耐力測定用載荷板１５に荷重をかけ、ジャッキ圧力とジャッキ伸長量を測定する。【選択図】図６
METHOD FOR CONFIRMING BEARING GROUND DURING FOUNDATION PILE CONSTRUCTION AND AUGER FOR THE SAME
To directly measure the bearing capacity of a bearing ground in a state where an auger is inserted into the ground during construction of a foundation pile carried out by using the auger having a helical blade around a rod shaft.SOLUTION: A bearing capacity measurement loading plate 15 is housed so as to project in an auger shaft direction at a tip of an auger 1, the bearing capacity measurement loading plate 15 is projected at a stage where the tip of the auger 1 reaches a bearing layer H, and the settlement of the auger 1 is measured by applying the dead weight of the auger 1. Alternatively, a hydraulic jack 19 is provided inside the tip of the auger 1, the bearing capacity measurement loading plate 15 is born at a piston tip, the hydraulic jack 19 is extended to apply a load on the bearing capacity measurement loading plate 15, and a jack pressure and a jack extension amount are measured in a state where the auger 1 is bound so as not to vertically move at the stage where the tip of the auger 1 reaches the bearing layer H.SELECTED DRAWING: Figure 6
【課題】ロッド軸周りに螺旋状の羽根を備えたオーガーを用いて基礎杭を施工するに当たって、前記オーガーを地中に貫入させた状態のままで、支持地盤の地耐力を直接的に測定する。【解決手段】オーガー１の先端に、オーガー軸芯方向に突出可能に地耐力測定用載荷板１５を収納しておき、オーガー１の先端が支持層Ｈに達した段階で、前記地耐力測定用載荷板１５を突出させた状態とし、オーガー１の自重を作用させてオーガー１の沈下量を測定する。或いはオーガー１の先端に、油圧ジャッキ１９を内設するとともに、ピストン先端に地耐力測定用載荷板１５を支持し、オーガー１の先端が支持層Ｈに達した段階で、オーガー１を上下方向に移動しないように拘束した状態で、前記油圧ジャッキ１９を伸長して地耐力測定用載荷板１５に荷重をかけ、ジャッキ圧力とジャッキ伸長量を測定する。【選択図】図６
METHOD FOR CONFIRMING BEARING GROUND DURING FOUNDATION PILE CONSTRUCTION AND AUGER FOR THE SAME
基礎杭施工時における支持地盤の確認方法及びそのためのオーガー
TABUCHI TAKUO (Autor:in) / YAMAMOTO MASAYUKI (Autor:in) / NAKAGAWA SHINTARO (Autor:in) / SHIBATA YASUSHI (Autor:in) / TSUKIDATE SETSUKA (Autor:in) / ICHIKAWA MASAMI (Autor:in) / UKEKAWA MAKOTO (Autor:in) / TONE MAKOTO (Autor:in) / MANABE HIROSUKE (Autor:in)
05.12.2019
Patent
Elektronische Ressource
Japanisch
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