Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND IMPROVEMENT METHOD, AND BORING ROD AND GROUND IMPROVEMENT DEVICE USED THEREFOR
PROBLEM TO BE SOLVED: To provide a ground improvement method capable of constructing a columnar ground improvement pile with a high bearing force, downsizing a diameter and a length of the columnar ground improvement pile compared to a conventional one, decreasing an amount of a binder to be used, and reducing a sand production that has to be removed to the ground.SOLUTION: A ground improvement method comprises the processes of: forming a drilling hole (40) in which sand production (41) remains by drilling a ground (4) to a required depth by a drilling means; mixing and agitating the sand production (41) in the drilling hole (40) and a liquid binder by an agitation means to produce a fluid mixture 5 in the drilling hole (40); forming a spiral groove (42) on a porous wall of the drilling hole (40) by drilling to a required depth in a lengthwise direction of the drilling hole (40); and solidifying the fluid mixture (5) in the drilling hole (40).SELECTED DRAWING: Figure 3
【課題】耐力に優れた柱状地盤改良杭を構築することができ、同じ耐力であれば、柱状地盤改良杭を従来より径小、短尺のより小さいものとすることが可能で、使用する結合材の量もより少なくすることができ、地上に排土しなくてはならない掘削土を減らすことができる地盤改良工法を提供する。【解決手段】地盤改良工法は、地盤(4)を掘削手段により所要の深さまで掘削して内部に掘削土(41)が残る掘削孔(40)を形成する工程と、掘削孔(40)の内部の掘削土(41)と液状の結合材を撹拌手段により混合撹拌し、掘削孔(40)の内部に流動性を有する混合物5をつくる工程と、掘削孔(40)の孔壁に、掘削孔(40)の長さ方向へ、所要深さで掘削した螺旋溝(42)を形成する工程と、掘削孔(40)の内部の流動性を有する混合物(5)を固化させる工程とを備える。【選択図】図３
GROUND IMPROVEMENT METHOD, AND BORING ROD AND GROUND IMPROVEMENT DEVICE USED THEREFOR
PROBLEM TO BE SOLVED: To provide a ground improvement method capable of constructing a columnar ground improvement pile with a high bearing force, downsizing a diameter and a length of the columnar ground improvement pile compared to a conventional one, decreasing an amount of a binder to be used, and reducing a sand production that has to be removed to the ground.SOLUTION: A ground improvement method comprises the processes of: forming a drilling hole (40) in which sand production (41) remains by drilling a ground (4) to a required depth by a drilling means; mixing and agitating the sand production (41) in the drilling hole (40) and a liquid binder by an agitation means to produce a fluid mixture 5 in the drilling hole (40); forming a spiral groove (42) on a porous wall of the drilling hole (40) by drilling to a required depth in a lengthwise direction of the drilling hole (40); and solidifying the fluid mixture (5) in the drilling hole (40).SELECTED DRAWING: Figure 3
【課題】耐力に優れた柱状地盤改良杭を構築することができ、同じ耐力であれば、柱状地盤改良杭を従来より径小、短尺のより小さいものとすることが可能で、使用する結合材の量もより少なくすることができ、地上に排土しなくてはならない掘削土を減らすことができる地盤改良工法を提供する。【解決手段】地盤改良工法は、地盤(4)を掘削手段により所要の深さまで掘削して内部に掘削土(41)が残る掘削孔(40)を形成する工程と、掘削孔(40)の内部の掘削土(41)と液状の結合材を撹拌手段により混合撹拌し、掘削孔(40)の内部に流動性を有する混合物5をつくる工程と、掘削孔(40)の孔壁に、掘削孔(40)の長さ方向へ、所要深さで掘削した螺旋溝(42)を形成する工程と、掘削孔(40)の内部の流動性を有する混合物(5)を固化させる工程とを備える。【選択図】図３
GROUND IMPROVEMENT METHOD, AND BORING ROD AND GROUND IMPROVEMENT DEVICE USED THEREFOR
地盤改良工法、地盤改良工法に使用する掘削ロッドおよび地盤改良装置
OGATA KATSUHIDE (Autor:in)
23.05.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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