Device for constructing a foundation in soft soil formations

Patent · Tue Dec 20 04:00:00 EST 1977

OSTI ID:6569913

Takagi, A; Kuroiwa, H; Miyaguchi, M; Kawamura, T; Ishikawa, Y

An apparatus is described for stabilizing soft soil so that a tubular pile foundation can be constructed in soft soils such as mud, clay, mire, slough, sludge, etc. The device is suspended into the soft soil from a crane or a derrick on the earth or a working barge offshore. The device consists of a box holding driving means, driving shaft means connected to the drive means and an agitating barrel for stiring the soft soil disposed at the end of the driving shaft means. The agitating barrel has a number of agitating blades and a chemical hardener feeder system for injecting the hardener into the soft soil to form solidified tubular piles. The feeder system has swivel joints, delivery pipes and injection nozzles. The device can be moved upward and downward in course of constructing tubular solid piles in situ by agitating and mixing the soil with the hardener to provide the high bearing capacity to the soil layers. (6 claims)

• Assignee: Takenaka Komuten Co Ltd
• Patent Number(s): US 4063424
• OSTI ID: 6569913
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
CONSTRUCTION
DESIGN
EQUIPMENT
FOUNDATIONS
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
SAND CONSOLIDATION
SOILS
STABILIZATION
SUPPORTS