Title:
WATERPROOF SHEET FOR TUNNEL
Document Type and Number:
WIPO Patent Application WO/2014/069701
Kind Code:
A1
Abstract:
The present invention relates to a waterproof sheet placed for the purpose of waterproofing during a tunnel construction. The waterproof sheet of the present invention has the simplest possible structure and is used during a tunnel construction so as to smoothly discharge water drained from the excavation face of the tunnel. The waterproof sheet comprises: a first waterproof sheet formed of a soft PE material that does not allow water to permeate; at least one fixed blade one end of which is fused onto the upper surface of the first waterproof sheet in the forward and backward directions; and a convex-concave part having multiple projections that are continuously and repeatedly projected in the forward and backward directions and the left and right directions on the upper surface of the first waterproof sheet on which the fixed blade is fused, such that constant spacing is maintained between the shotcrete face of the tunnel and the first water proof sheet, and the water drained from the excavation face of the tunnel can be discharged.
Inventors:
YANG WOO JUNG (KR)
Application Number:
PCT/KR2012/009216
Publication Date:
May 08, 2014
Filing Date:
November 05, 2012
Export Citation:
Assignee:
DAE HEUNG IND CO LTD (KR)
International Classes:
E21D11/38
Foreign References:
| KR100740781B1 | 2007-07-19 | |||
| KR20100040774A | 2010-04-21 | |||
| KR20120106272A | 2012-09-26 | |||
| KR101005027B1 | 2010-12-30 | |||
| KR20110027956A | 2011-03-17 |
Attorney, Agent or Firm:
WELL-L&K PATENT FIRM (KR)
특허법인 웰-엘엔케이 (KR)
특허법인 웰-엘엔케이 (KR)
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