CRUCIFORM START VERTICAL SHAFT STRUCTURE

PROBLEM TO BE SOLVED: To provide a departure shaft structure capable of being adapted to a pipe jacking method and a shield tunneling method and achieving reduction of costs required for soil improvement. SOLUTION: A front circular tube body 3 and a rear circular tube body 4 capable of storing equip...

Full description

Saved in:
Bibliographic Details
Main Authors WATANABE HIROMI, FUJII HIROAKI, YOSHIKAWA MASAHIRO, ATSUMI AKIO, TAKAMATSU NOBUYUKI, TAKAI SHINICHIRO, KAGAWA HITOHISA
Format Patent
LanguageEnglish
Published 02.07.2009
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a departure shaft structure capable of being adapted to a pipe jacking method and a shield tunneling method and achieving reduction of costs required for soil improvement. SOLUTION: A front circular tube body 3 and a rear circular tube body 4 capable of storing equipment for a pipe jacking method or a shield tunneling method are arranged outside of symmetrical positions on both sides sandwiching an axis halfway in the vertical direction of a circumferential wall of a casing start vertical shaft 1 in the state of communicating with the interior of the start vertical shaft 1, and zones of the start vertical shaft 1 below the two circular tube bodies 3, 4 are used as a storage section 6 for earth removing equipment 5, and the vertical cross-section along the jacking direction has a cruciform shape. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070324902