A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT DEVICE
To provide a ground improvement method and a ground improvement device capable of preventing changes in neighboring structures, preventing solidification material from overflowing to the ground surface, and making excavated soil discharged to the ground surface soil that is not mixed with solidification material.SOLUTION: A ground improvement method related to this disclosure comprises an insertion step of inserting a drilling rod 3 into the ground GL until it reaches a predetermined depth, a forming step in which excavated soil 53 is discharged to the ground surface by pulling up while rotating the drilling rod in the forward direction, and at the same time forming unsolidified columnar bodies 30 in which soil and solidification material are mixed, a waiting step in which the pulling up of the drilling rod is temporarily stopped and the discharge volume of the solidification material reaches the set volume if lifted length of the drilling rod reaches a preset set length earlier than the discharge volume of the solidifying material reaches the set volume in the forming step, a repetitive step in which the forming step and the waiting step are one cycle, and one cycle is repeated until the unsolidified columnar body reaches a predetermined length, and a solidification step.SELECTED DRAWING: Figure 3
【課題】本開示は、近隣の構築物に変異が生じることを防止し、固化材が地表に溢れ出ず、地表に排出される掘削排土を固化材が混入していない土とすることができる地盤改良工法及び地盤改良装置を提供することを目的とする。【解決手段】本開示に係る地盤改良工法は、掘削ロッド３を地盤ＧＬ中の所定深度に達するまで挿入する挿入工程と、掘削ロッドを正回転させながら引き上げて掘削排土５３を地表に排出するとともに、土砂と固化材とが混合された未固化柱状体３０を形成する形成工程と、形成工程において、掘削ロッドの引き上げ長さが予め設定した設定長さに達する時が固化材の吐出体積が設定体積に達する時よりも早いとき、掘削ロッドの引き上げを一旦停止して固化材の吐出体積が設定体積に達する時を待つ待機工程と、形成工程と待機工程とを１サイクルとし、１サイクルを未固化柱状体が所定の長さに達するまで繰り返す繰返し工程と、固化工程と、を有する。【選択図】図３
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT DEVICE
To provide a ground improvement method and a ground improvement device capable of preventing changes in neighboring structures, preventing solidification material from overflowing to the ground surface, and making excavated soil discharged to the ground surface soil that is not mixed with solidification material.SOLUTION: A ground improvement method related to this disclosure comprises an insertion step of inserting a drilling rod 3 into the ground GL until it reaches a predetermined depth, a forming step in which excavated soil 53 is discharged to the ground surface by pulling up while rotating the drilling rod in the forward direction, and at the same time forming unsolidified columnar bodies 30 in which soil and solidification material are mixed, a waiting step in which the pulling up of the drilling rod is temporarily stopped and the discharge volume of the solidification material reaches the set volume if lifted length of the drilling rod reaches a preset set length earlier than the discharge volume of the solidifying material reaches the set volume in the forming step, a repetitive step in which the forming step and the waiting step are one cycle, and one cycle is repeated until the unsolidified columnar body reaches a predetermined length, and a solidification step.SELECTED DRAWING: Figure 3
【課題】本開示は、近隣の構築物に変異が生じることを防止し、固化材が地表に溢れ出ず、地表に排出される掘削排土を固化材が混入していない土とすることができる地盤改良工法及び地盤改良装置を提供することを目的とする。【解決手段】本開示に係る地盤改良工法は、掘削ロッド３を地盤ＧＬ中の所定深度に達するまで挿入する挿入工程と、掘削ロッドを正回転させながら引き上げて掘削排土５３を地表に排出するとともに、土砂と固化材とが混合された未固化柱状体３０を形成する形成工程と、形成工程において、掘削ロッドの引き上げ長さが予め設定した設定長さに達する時が固化材の吐出体積が設定体積に達する時よりも早いとき、掘削ロッドの引き上げを一旦停止して固化材の吐出体積が設定体積に達する時を待つ待機工程と、形成工程と待機工程とを１サイクルとし、１サイクルを未固化柱状体が所定の長さに達するまで繰り返す繰返し工程と、固化工程と、を有する。【選択図】図３
GROUND IMPROVEMENT METHOD AND GROUND IMPROVEMENT DEVICE
地盤改良工法及び地盤改良装置
AMAGAI TAKASHI (author)
2023-08-21
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT SYSTEM, AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2020
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT SYSTEM, AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2019
GROUND IMPROVEMENT DEVICE, AND GROUND IMPROVEMENT METHOD
| European Patent Office | 2022