Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION METHOD AND HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION DEVICE
PROBLEM TO BE SOLVED: To provide a hydraulic setting solidification material liquid column having the cross-sectional area and strength as plan design, even if a drilling hole diameter is occasionally reduced, by strengthening the ground of the drilling hole periphery, by pressurizing in the direction for expanding its drilling hole diameter, by expecting reduction in the drilling hole diameter formed by drilling the ground.SOLUTION: The ground is excavated up to the predetermined depth, while rotating a drilling rod 1a, by using a hydraulic setting solidification material liquid substitution column construction device for connecting a drilling head 2 having a discharge port 2b communicating with its flow passage 1d, to a lower end part of a drilling rod 1a having the flow passage 1d of a hydraulic setting solidification material liquid, and afterwards, when constructing a hydraulic setting solidification material liquid substitution column by filling a hydraulic setting solidification material liquid in a drilled hole, while rotating the drilling rod 1a or pulling up by nonrotation, rubbing projections 3a and 3b provided on the drilling rod 1a are rubbed against a drilling hole wall surface in the direction for expanding the drilling hole diameter.SELECTED DRAWING: Figure 1
【課題】地盤を掘削してできた削孔径の縮小を見込んで、その削孔径を拡張する方向へ加圧することで削孔周辺の地盤を強固にし、削孔径が縮小することがあっても計画設計通りの断面積および強度を持つ水硬性固化材液コラムを提供する。【解決手段】水硬性固化材液の流路１ｄを有する掘削ロッド１ａ下端部に、その流路１ｄに通じる吐出口２ｂを有する掘削ヘッド２を接続した水硬性固化材液置換コラム築造装置を用い、掘削ロッド１ａを回転しつつ地盤の所定深度まで掘削し、その後掘削ロッド１ａを回転しつつ、もしくは無回転で引き上げ、削孔内に水硬性固化材液を充填して水硬性固化材液置換コラムを築造する場合に、前記掘削ロッド１ａに設けた擦り付け突起３ａ、３ｂを、削孔径を拡張する方向に削孔壁面に対し擦り付ける。【選択図】図１
HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION METHOD AND HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION DEVICE
PROBLEM TO BE SOLVED: To provide a hydraulic setting solidification material liquid column having the cross-sectional area and strength as plan design, even if a drilling hole diameter is occasionally reduced, by strengthening the ground of the drilling hole periphery, by pressurizing in the direction for expanding its drilling hole diameter, by expecting reduction in the drilling hole diameter formed by drilling the ground.SOLUTION: The ground is excavated up to the predetermined depth, while rotating a drilling rod 1a, by using a hydraulic setting solidification material liquid substitution column construction device for connecting a drilling head 2 having a discharge port 2b communicating with its flow passage 1d, to a lower end part of a drilling rod 1a having the flow passage 1d of a hydraulic setting solidification material liquid, and afterwards, when constructing a hydraulic setting solidification material liquid substitution column by filling a hydraulic setting solidification material liquid in a drilled hole, while rotating the drilling rod 1a or pulling up by nonrotation, rubbing projections 3a and 3b provided on the drilling rod 1a are rubbed against a drilling hole wall surface in the direction for expanding the drilling hole diameter.SELECTED DRAWING: Figure 1
【課題】地盤を掘削してできた削孔径の縮小を見込んで、その削孔径を拡張する方向へ加圧することで削孔周辺の地盤を強固にし、削孔径が縮小することがあっても計画設計通りの断面積および強度を持つ水硬性固化材液コラムを提供する。【解決手段】水硬性固化材液の流路１ｄを有する掘削ロッド１ａ下端部に、その流路１ｄに通じる吐出口２ｂを有する掘削ヘッド２を接続した水硬性固化材液置換コラム築造装置を用い、掘削ロッド１ａを回転しつつ地盤の所定深度まで掘削し、その後掘削ロッド１ａを回転しつつ、もしくは無回転で引き上げ、削孔内に水硬性固化材液を充填して水硬性固化材液置換コラムを築造する場合に、前記掘削ロッド１ａに設けた擦り付け突起３ａ、３ｂを、削孔径を拡張する方向に削孔壁面に対し擦り付ける。【選択図】図１
HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION METHOD AND HYDRAULIC SETTING SOLIDIFICATION MATERIAL LIQUID SUBSTITUTION COLUMN CONSTRUCTION DEVICE
水硬性固化材液置換コラム築造方法および水硬性固化材液置換コラム築造装置
YAMATO SHINICHI (Autor:in) / YOSHIDA SHIGERU (Autor:in) / YANAGIDA YUJI (Autor:in) / YOSHIDA SHIGEKI (Autor:in) / MURAYAMA ATSUSHI (Autor:in) / FUJIHASHI TOSHINORI (Autor:in) / TANAKA KEIZO (Autor:in) / KANEKO TAKAYUKI (Autor:in)
28.04.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2017
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2016