Title:
EXCAVATION METHOD OF UNDERGROUND PLAZA AND SUBMARINE PLAZA USING STEEL CASING RETAINING WALL
Document Type and Number:
WIPO Patent Application WO/2010/104235
Kind Code:
A1
Abstract:
The present invention relates to an excavation method of an underground plaza and a submarine plaza using a steel casing retaining wall, including the steps of: (a) excavating a horizontal or vertical working tunnel (71) for excavating an underground plaza (70) and horizontally excavating the upper space (72) of a planned underground plaza position to be connected to an end of the working tunnel (71); (b) mounting inner and outer wall casings (20,21) of a leading end part which have predetermined length and height in the mounting position of a retaining wall for the excavation of the underground plaza (70) in the upper space (72) of the planned underground plaza position; (c) excavating the ground between the leading-end inner and outer casings (20,21) and simultaneously sinking and digging the leading-end inner and outer casings (20,21) to an excavation bottom surface (50) by the own weight thereof; (d) mounting inner and outer casings (30,31) of an intermediate connection part which have the same shape and length to the top of the leading-end inner and outer casings (20,21) and connecting joints after the digging of the leading-end inner and outer casings (20,21) is completed; and (e) excavating the ground between the leading-end inner and outer casings (20,21) again and simultaneously sinking and digging the leading-end inner and outer casings (20,21) to the excavation bottom surface (50) after the connection between the inner and outer casings (20,21,30,31) of the leading end part and the intermediate connection part is completed.
Inventors:
CHUNG KWANG-OK (KR)
Application Number:
PCT/KR2009/001559
Publication Date:
September 16, 2010
Filing Date:
March 27, 2009
Export Citation:
Assignee:
CHUNG KWANG-OK (KR)
International Classes:
E21D1/08; E02D17/04; E02D29/045; E21D5/06
Foreign References:
| JPH07139300A | 1995-05-30 | |||
| JPH0455590A | 1992-02-24 |
Attorney, Agent or Firm:
SON, TAE-WON (KR)
손태원 (KR)
손태원 (KR)
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