A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR CREATING GROUND IMPROVEMENT FOUNDATION
PROBLEM TO BE SOLVED: To provide a method for creating a ground improvement foundation which can create a ground improvement foundation high in ground improvement performance and having a bearing strength against bending and shear and hard to be removed in the vertical direction.SOLUTION: A method for creating a ground improvement foundation comprises the steps of: boring a vertical hole 110 extending in a prescribed direction in a ground surface; creating improved soil by mixing excavated soil discharged by excavation with a cement-based solidifying agent; filling the vertical hole 110 with the improved soil while reversely turning an auger 200 with a pressing part so that the improved soil is pressed on at least the lower back side and the side face of the vertical hole 110 by the pressing part for compaction; forming a columnar body 310 by solidifying the improved soil in the vertical hole 110; forming an internal hole 320 extending in a prescribed direction from one end of the columnar body 310; filling the internal hole 320 with a metallic core material 330 and cement not containing the excavated soil; and solidifying the cement.SELECTED DRAWING: Figure 1
【課題】地盤改良の能力が高いと同時に、曲げ、せん断および上下方向の抜けに強い地盤改良基礎を作成する地盤改良基礎作成方法を提供する。【解決手段】地面に、所定方向に延在する縦穴１１０を掘削する工程と、掘削により排出される掘削土とセメント系固化剤とを混合して改良土を作成する工程と、押圧部を備えるオーガー２００を逆回転させながら縦穴１１０に改良土を入れることにより、押圧部により少なくとも縦穴１１０の下方奥と側面とに改良土を押しつけて締め固める工程と、縦穴１１０内の改良土を固化させて柱状体３１０を形成する工程と、柱状体３１０の一端から所定方向に延在する内部穴３２０を形成する工程と、内部穴３２０に金属製の芯材３３０と、掘削土を含まないセメントと、を入れる工程と、セメントを固化させる工程と、を含む。【選択図】図１
METHOD FOR CREATING GROUND IMPROVEMENT FOUNDATION
PROBLEM TO BE SOLVED: To provide a method for creating a ground improvement foundation which can create a ground improvement foundation high in ground improvement performance and having a bearing strength against bending and shear and hard to be removed in the vertical direction.SOLUTION: A method for creating a ground improvement foundation comprises the steps of: boring a vertical hole 110 extending in a prescribed direction in a ground surface; creating improved soil by mixing excavated soil discharged by excavation with a cement-based solidifying agent; filling the vertical hole 110 with the improved soil while reversely turning an auger 200 with a pressing part so that the improved soil is pressed on at least the lower back side and the side face of the vertical hole 110 by the pressing part for compaction; forming a columnar body 310 by solidifying the improved soil in the vertical hole 110; forming an internal hole 320 extending in a prescribed direction from one end of the columnar body 310; filling the internal hole 320 with a metallic core material 330 and cement not containing the excavated soil; and solidifying the cement.SELECTED DRAWING: Figure 1
【課題】地盤改良の能力が高いと同時に、曲げ、せん断および上下方向の抜けに強い地盤改良基礎を作成する地盤改良基礎作成方法を提供する。【解決手段】地面に、所定方向に延在する縦穴１１０を掘削する工程と、掘削により排出される掘削土とセメント系固化剤とを混合して改良土を作成する工程と、押圧部を備えるオーガー２００を逆回転させながら縦穴１１０に改良土を入れることにより、押圧部により少なくとも縦穴１１０の下方奥と側面とに改良土を押しつけて締め固める工程と、縦穴１１０内の改良土を固化させて柱状体３１０を形成する工程と、柱状体３１０の一端から所定方向に延在する内部穴３２０を形成する工程と、内部穴３２０に金属製の芯材３３０と、掘削土を含まないセメントと、を入れる工程と、セメントを固化させる工程と、を含む。【選択図】図１
METHOD FOR CREATING GROUND IMPROVEMENT FOUNDATION
地盤改良基礎作成方法
IIDA TETSUO (author)
2016-11-24
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND IMPROVEMENT BODY CREATING DEVICE, GROUND IMPROVEMENT CONSTRUCTION METHOD
| European Patent Office | 2023