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CONSTRUCTION METHOD OF REINFORCEMENT TYPE REPLACING COLUMN AND REINFORCEMENT TYPE REPLACING COLUMN
To provide a construction method of a reinforcement type replacing column with shear strength of a head part of the replacing column after a hydraulic solidifying liquid is solidified, and to provide the reinforcement type replacing column.SOLUTION: The construction method of a replacing column which is formed by excavating soft ground to a prescribed depth to form a columnar hole, injecting hydraulic solidifying liquid into the excavated hole and solidifying, includes the steps of: floating a replacing column head part reinforcement 15A having a floating lid body 12A composed of a floating material and at least one settling reinforcement 14 suspended in the floating lid body 12A, on the liquid level of the hydraulic solidifying liquid, after injecting the hydraulic solidifying liquid into the excavated hole and before the hydraulic solidifying liquid is solidified; and solidifying the hydraulic solidifying liquid in a state of floating the replacing column head part reinforcement 15A on the liquid level of the hydraulic solidifying liquid and integrating the replacing column head part reinforcement 15A to a head part of the replacing column.SELECTED DRAWING: Figure 1
【課題】水硬性固化材液が固化した後の置換コラムの頭部のせん断強度が補強された補強型置換コラムの施工方法及び補強型置換コラムを提供する。【解決手段】軟弱地盤を所定の深度まで掘削してコラム状の穴を形成し、掘削された穴に水硬性固化材液を注入し固化せしめることで形成される置換コラムの施工方法において、浮遊性素材で構成された浮き蓋体１２Ａと、前記浮き蓋体１２Ａに垂設せしめられた少なくとも一つの沈下補強材１４と、を有する、置換コラム頭部補強材１５Ａを、前記掘削された穴に水硬性固化材液を注入した後、前記水硬性固化材液が固化せしめられる前に、前記水硬性固化材液の液面に浮かべる工程と、前記置換コラム頭部補強材１５Ａを前記水硬性固化材液の液面に浮かべた状態で前記水硬性固化材液を固化せしめ、置換コラムの頭部に置換コラム頭部補強材１５Ａを一体化せしめる工程と、を含む。【選択図】図１
CONSTRUCTION METHOD OF REINFORCEMENT TYPE REPLACING COLUMN AND REINFORCEMENT TYPE REPLACING COLUMN
To provide a construction method of a reinforcement type replacing column with shear strength of a head part of the replacing column after a hydraulic solidifying liquid is solidified, and to provide the reinforcement type replacing column.SOLUTION: The construction method of a replacing column which is formed by excavating soft ground to a prescribed depth to form a columnar hole, injecting hydraulic solidifying liquid into the excavated hole and solidifying, includes the steps of: floating a replacing column head part reinforcement 15A having a floating lid body 12A composed of a floating material and at least one settling reinforcement 14 suspended in the floating lid body 12A, on the liquid level of the hydraulic solidifying liquid, after injecting the hydraulic solidifying liquid into the excavated hole and before the hydraulic solidifying liquid is solidified; and solidifying the hydraulic solidifying liquid in a state of floating the replacing column head part reinforcement 15A on the liquid level of the hydraulic solidifying liquid and integrating the replacing column head part reinforcement 15A to a head part of the replacing column.SELECTED DRAWING: Figure 1
【課題】水硬性固化材液が固化した後の置換コラムの頭部のせん断強度が補強された補強型置換コラムの施工方法及び補強型置換コラムを提供する。【解決手段】軟弱地盤を所定の深度まで掘削してコラム状の穴を形成し、掘削された穴に水硬性固化材液を注入し固化せしめることで形成される置換コラムの施工方法において、浮遊性素材で構成された浮き蓋体１２Ａと、前記浮き蓋体１２Ａに垂設せしめられた少なくとも一つの沈下補強材１４と、を有する、置換コラム頭部補強材１５Ａを、前記掘削された穴に水硬性固化材液を注入した後、前記水硬性固化材液が固化せしめられる前に、前記水硬性固化材液の液面に浮かべる工程と、前記置換コラム頭部補強材１５Ａを前記水硬性固化材液の液面に浮かべた状態で前記水硬性固化材液を固化せしめ、置換コラムの頭部に置換コラム頭部補強材１５Ａを一体化せしめる工程と、を含む。【選択図】図１
CONSTRUCTION METHOD OF REINFORCEMENT TYPE REPLACING COLUMN AND REINFORCEMENT TYPE REPLACING COLUMN
補強型置換コラムの施工方法及び補強型置換コラム
SUMIYA TSUTOMU (author)
2022-11-04
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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