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BACKFILLING METHOD IN DRILLED HOLE, UNDERGROUND STRUCTURAL OBJECT PROCESSING METHOD, AND EXISTING PILE REMOVAL METHOD
To provide a backfilling method in a drilled hole, an underground structural object processing method, and an existing pile removal method allowing a construction period to be shortened.SOLUTION: A backfilling method in a drilled hole to backfill fluidized processing soil S in a drilled hole 3 surrounded by an earth-retaining wall 5, includes an earth-retaining wall removal step in which an operator P removes a lower end part 5b of the earth-retaining wall 5 using a pontoon 17 as a work platform in a state the pontoon 17 is floated on a liquid surface of the fluidized processing soil S accumulated in the drilled hole 3.SELECTED DRAWING: Figure 3
【課題】工期の短縮を図ることができる掘削孔埋戻し方法、地中構造物処理方法、及び既設杭撤去方法を提供する。【解決手段】掘削孔埋戻し方法は、土留壁5で囲まれた掘削孔3を流動化処理土Sで埋め戻す掘削孔埋戻し方法であって、掘削孔3内に溜まった流動化処理土Sの液面上に台船17を浮かべた状態で、台船17を作業足場として作業者Pが土留壁5の下端部5bを除去する土留壁除去工程を備える。【選択図】図3
BACKFILLING METHOD IN DRILLED HOLE, UNDERGROUND STRUCTURAL OBJECT PROCESSING METHOD, AND EXISTING PILE REMOVAL METHOD
To provide a backfilling method in a drilled hole, an underground structural object processing method, and an existing pile removal method allowing a construction period to be shortened.SOLUTION: A backfilling method in a drilled hole to backfill fluidized processing soil S in a drilled hole 3 surrounded by an earth-retaining wall 5, includes an earth-retaining wall removal step in which an operator P removes a lower end part 5b of the earth-retaining wall 5 using a pontoon 17 as a work platform in a state the pontoon 17 is floated on a liquid surface of the fluidized processing soil S accumulated in the drilled hole 3.SELECTED DRAWING: Figure 3
【課題】工期の短縮を図ることができる掘削孔埋戻し方法、地中構造物処理方法、及び既設杭撤去方法を提供する。【解決手段】掘削孔埋戻し方法は、土留壁5で囲まれた掘削孔3を流動化処理土Sで埋め戻す掘削孔埋戻し方法であって、掘削孔3内に溜まった流動化処理土Sの液面上に台船17を浮かべた状態で、台船17を作業足場として作業者Pが土留壁5の下端部5bを除去する土留壁除去工程を備える。【選択図】図3
BACKFILLING METHOD IN DRILLED HOLE, UNDERGROUND STRUCTURAL OBJECT PROCESSING METHOD, AND EXISTING PILE REMOVAL METHOD
掘削孔埋戻し方法、地中構造物処理方法、及び既設杭撤去方法
IHARA HIROTOMO (Autor:in)
28.07.2023
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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