Title:
【発明の名称】コンクリ―ト構造体を粗い物質に地面レベルから構築する方法および前記方法を実施する設備
Document Type and Number:
Japanese Patent JP2532751
Kind Code:
B2
Abstract:
A process for building a concrete structure in loose matter, from ground level, by use of a rotatable erosion head (2a), and a rotatable grouting head (3a) provided with drill bits (2b and 3b), which form components of an erosion unit (2), and a grouting unit (3), respectively, which are drilled into ground (A) simultaneously and in parallel with a mutual center distance (C) to a desired depth. Erosion head (2a) is raised during simultaneous erosion of the bore hole (4) walls at the same time as grouting head (3a) is raised slightly displaced downwards relative to erosion head (2a) during supply of grouting material, e.g. concrete (D), under pressure for grouting the expanded bore hole (4a) and simultaneous expulsion of the eroded loose material (E).
Inventors:
HOKUSURUTSUDO RARUSU O
Application Number:
JP50321790A
Publication Date:
September 11, 1996
Filing Date:
February 01, 1990
Export Citation:
Assignee:
HOKUSURUTSUDO RARUSU O
International Classes:
E02D3/12; E21B43/29; (IPC1-7): E02D3/12
Domestic Patent References:
| JP1102122A |
Attorney, Agent or Firm:
Akira Asamura (3 outside)
Previous Patent: 循環式流動層ボイラの再熱蒸気温度制御のためのシステムと方法
Next Patent: GAMMA-TITANIUM-ALUMINUM ALLOY MODIFIED BY CHROMIUM AND TUNGSTEN AND ITS PRODUCTION
Next Patent: GAMMA-TITANIUM-ALUMINUM ALLOY MODIFIED BY CHROMIUM AND TUNGSTEN AND ITS PRODUCTION