A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT STRUCTURE
To provide a ground improvement method and a ground improvement structure which can be constructed using versatile materials, which can be easily constructed and can shorten a construction period, and which can obtain excellent liquefaction prevention effect.SOLUTION: A ground improvement method comprises: a step of drilling a vertical hole P in a ground G using an earth auger drill 10; a step of forming a recessed groove T communicating with an opening portion P1 of the vertical hole P in the ground G; a step of feeding a ground improvement material 5 into the vertical hole P and the recessed groove T; and a step of compacting by applying pressure to the ground improvement material 5 fed into the vertical hole P and the recessed groove T. The ground improvement material 5 is formed by mixing and kneading at least one of crushed stone 1 and decomposed granite soil, a cement-based solidification material 2, an aggregating agent 3 and water 4.SELECTED DRAWING: Figure 1
【課題】汎用的な資材で施工可能であり、施工も容易で工期短縮も可能であり、優れた液状化防止効果を得ることができる地盤改良工法及び地盤改良構造を提供する。【解決手段】地盤改良工法は、アースオーガードリル１０を使用して地盤Ｇに縦穴Ｐを掘削する工程と、地盤Ｇに縦穴Ｐの開口部Ｐ１と連通する凹溝Ｔを形成する工程と、縦穴Ｐ及び凹溝Ｔに地盤改良材５を投入する工程と、縦穴Ｐ及び凹溝Ｔに投入された地盤改良材５に圧力を加えて締固める工程と、を備え、地盤改良材５は、砕石１または真砂土の少なくとも一方と、セメント系固化材２と、団粒化剤３と、水４と、を混合、混錬して形成したものを使用する。【選択図】図１
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT STRUCTURE
To provide a ground improvement method and a ground improvement structure which can be constructed using versatile materials, which can be easily constructed and can shorten a construction period, and which can obtain excellent liquefaction prevention effect.SOLUTION: A ground improvement method comprises: a step of drilling a vertical hole P in a ground G using an earth auger drill 10; a step of forming a recessed groove T communicating with an opening portion P1 of the vertical hole P in the ground G; a step of feeding a ground improvement material 5 into the vertical hole P and the recessed groove T; and a step of compacting by applying pressure to the ground improvement material 5 fed into the vertical hole P and the recessed groove T. The ground improvement material 5 is formed by mixing and kneading at least one of crushed stone 1 and decomposed granite soil, a cement-based solidification material 2, an aggregating agent 3 and water 4.SELECTED DRAWING: Figure 1
【課題】汎用的な資材で施工可能であり、施工も容易で工期短縮も可能であり、優れた液状化防止効果を得ることができる地盤改良工法及び地盤改良構造を提供する。【解決手段】地盤改良工法は、アースオーガードリル１０を使用して地盤Ｇに縦穴Ｐを掘削する工程と、地盤Ｇに縦穴Ｐの開口部Ｐ１と連通する凹溝Ｔを形成する工程と、縦穴Ｐ及び凹溝Ｔに地盤改良材５を投入する工程と、縦穴Ｐ及び凹溝Ｔに投入された地盤改良材５に圧力を加えて締固める工程と、を備え、地盤改良材５は、砕石１または真砂土の少なくとも一方と、セメント系固化材２と、団粒化剤３と、水４と、を混合、混錬して形成したものを使用する。【選択図】図１
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT STRUCTURE
地盤改良工法及び地盤改良構造
NAKAJIMA KANSHI (author) / TSUBATA KAZUHARU (author)
2021-04-30
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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