A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
To economically and efficiently construct an underground structure using a ground improvement body controlling a setting start time even when there is a restriction in work time and a work space.SOLUTION: A method for constructing an underground structure for constructing an underground structure using a ground improver constructed at an original position includes the steps of: drilling the ground while supplying a bentonite liquid thereto, and filling an underground hole with drilling mud obtained by mixing the bentonite liquid with drilled soil; adding a slow hardening solidification liquid to the underground hole, and mixing and stirring the added slow hardening solidification liquid with the drilling mud, and preparing a ground improvement liquid; and building a core material into the underground hole filled with the ground improvement liquid, wherein the slow hardening solidification liquid contains cement milk, a retarder, and a soluble sulfate.SELECTED DRAWING: Figure 3
【課題】作業時間や作業空間に制約がある場合にも、凝結の開始時間を制御した地盤改良体を利用した地中構造物を、経済的かつ効率よく構築することである。【解決手段】原位置で築造した地盤改良体を利用して地中構造物を構築する地中構造物の構築方法であって、ベントナイト液を供給しながら地盤を削孔し、地中孔を前記ベントナイト液に掘削土が混じった掘削泥水で満たす工程と、前記地中孔に遅硬性固化液を添加して前記掘削泥水と混合攪拌し、地盤改良液を作成する工程と、前記地盤改良液で満たされた前記地中孔内に、芯材を建込む工程と、を備え、前記遅硬性固化液は、セメントミルク、遅延剤及び可溶性硫酸塩を含む。【選択図】図３
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
To economically and efficiently construct an underground structure using a ground improvement body controlling a setting start time even when there is a restriction in work time and a work space.SOLUTION: A method for constructing an underground structure for constructing an underground structure using a ground improver constructed at an original position includes the steps of: drilling the ground while supplying a bentonite liquid thereto, and filling an underground hole with drilling mud obtained by mixing the bentonite liquid with drilled soil; adding a slow hardening solidification liquid to the underground hole, and mixing and stirring the added slow hardening solidification liquid with the drilling mud, and preparing a ground improvement liquid; and building a core material into the underground hole filled with the ground improvement liquid, wherein the slow hardening solidification liquid contains cement milk, a retarder, and a soluble sulfate.SELECTED DRAWING: Figure 3
【課題】作業時間や作業空間に制約がある場合にも、凝結の開始時間を制御した地盤改良体を利用した地中構造物を、経済的かつ効率よく構築することである。【解決手段】原位置で築造した地盤改良体を利用して地中構造物を構築する地中構造物の構築方法であって、ベントナイト液を供給しながら地盤を削孔し、地中孔を前記ベントナイト液に掘削土が混じった掘削泥水で満たす工程と、前記地中孔に遅硬性固化液を添加して前記掘削泥水と混合攪拌し、地盤改良液を作成する工程と、前記地盤改良液で満たされた前記地中孔内に、芯材を建込む工程と、を備え、前記遅硬性固化液は、セメントミルク、遅延剤及び可溶性硫酸塩を含む。【選択図】図３
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
地中構造物の構築方法
SUZUKI TAKESHI (author) / SUDO TOSHIMI (author) / KOYAMA DAIKI (author) / MIURA TOSHIHIKO (author) / NOZAKI TAKAHITO (author) / MORI YOSHIHIKO (author)
2022-07-07
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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