BUILDING METHOD FOR UNDERGROUND BODY FOR BUILDING

PURPOSE:To improve work executing ability of an underground body by a method wherein after excavation down to a given depth is executed, a stage is assembled and fixed to structural central columns and a landslide protection wall through jacks, the stage is acted as a strut, and used for excavation...

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Bibliographic Details
Main Authors YAMAMOTO ITSUO, KOBAYASHI KATSUMI, MARU TAKAHIRO, HAMAZUKA SEIJI
Format Patent
LanguageEnglish
Published 14.07.1992
Subjects
DREDGING
EARTH DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GALLERIES
HYDRAULIC ENGINEERING
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
SOIL SHIFTING
TUNNELS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PURPOSE:To improve work executing ability of an underground body by a method wherein after excavation down to a given depth is executed, a stage is assembled and fixed to structural central columns and a landslide protection wall through jacks, the stage is acted as a strut, and used for excavation of the whole surface of a ground below the stage and construction of an upper slab and a beam. CONSTITUTION:A landslide protection wall 1 forming an underground outer wall and a pile and structural central columns 3 to support a pile 2 below an inside column and upper concrete are built from a ground surface part. After first stage excavation is completed, a stage 4 is fixed in a position to the central columns 3 and the landslide protection wall 1 by means of jacks 5 and 6. An excavator previously mounted on the under surface of the stage 4 is operated to excavate a ground below the under surface of the stage 4. Excavated soil is discharged by means of an excavated soil horizontal and vertical conveying member interlocking with movement of an excavator 7. Meanwhile, by means of the stage serving as a support bed, forms for a slab 11 and a beams 12 are frames and reinforcing bars are arranged to place concrete. After concrete of the slab 11 is cured, hydraulic jacks 5 and 6 are contracted, the stage 4 is lowered to a given position, and a preceding process is repeated. This method performs high-efficient discharge of excavated soil, ensures safety of a work, and executes a work even at a soft ground without any trouble.
Bibliography:Application Number: JP19900321029