HORIZONTAL EXCAVATING AND TRANSPORTING DEVICE UNDER GROUND

PURPOSE:To raise the efficiency of horizontal excavation as well as of usual excavation by a method in which a rotary shaft with screw blade is set in a casing, and sideward excavating cutter groups are provided at intervals for the tip end portion of the screw blade. CONSTITUTION:A rotary shaft 3 w...

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Bibliographic Details
Main Authors SASAKI KIYOMI, MIZUTA SADACHIKA, KANEKO MASARU, OKUMOTO KAZUNOBU, WAKABAYASHI AKIRA
Format Patent
LanguageEnglish
Published 05.08.1988
Subjects
DREDGING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PURPOSE:To raise the efficiency of horizontal excavation as well as of usual excavation by a method in which a rotary shaft with screw blade is set in a casing, and sideward excavating cutter groups are provided at intervals for the tip end portion of the screw blade. CONSTITUTION:A rotary shaft 3 with a screw blade 31 is turned to penetrate its cutting edge 32 into the ground and a casing 2 is horizontally penetrated with the shaft 3 into the ground by the propulsion of the cutting edge 32. The excavated soil is sent into the casing 2 and carried and discharged from an outlet 22 on the base side into a caisson (a). The casing 2 and the shaft 3 are sideways moved by a moving arrangement mechanism 1, together with the rotary driving of the shaft 3. Furthermore, sideward excavation is made by the sideward excavating cutter group 6 of the blade 31 and the soil is discharged into the caisson (a).
Bibliography:Application Number: JP19870018725