The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2009
Filed:
Nov. 14, 2003
Dong-hyung Seo, Goyang-shi, 411-350 Gyeonggi-do, KR;
Seok-ryul Yun, Ansan-shi, KR;
Oh-hyun Kwon, Seoul, KR;
Dong-Hyung Seo, Goyang-shi, 411-350 Gyeonggi-do, KR;
Seok-Ryul Yun, Ansan-shi, KR;
Oh-Hyun Kwon, Seoul, KR;
Other;
Abstract
Disclosed are a structure of an intermediate wall of a three arch excavated tunnel, which effectively exhausts subterranean water from a peripheral ground, and a method for constructing the tunnel. The method comprising the steps of: (a) excavating an upper portion of a central tunnel; (b) excavating a lower portion of the central tunnel; (c) forming an intermediate walland grouting a gap formed in the intermediate wall; (d) excavating an upper portion of a left main tunnel; (e) excavating an upper portion of a right main tunnel; (f) excavating a lower portion of the left main tunnel; (g) excavating a lower portion of the right main tunnel; and (h) installing a drain boardand a waterproof layerand casting lining concretetherein so that the tunnel is easily drained through drain pipesand residual water pressure is eliminated.