Bonding state evaluation of tunnel shotcrete applied onto hard rocks using the impact-echo method

Journal

NDT & E INTERNATIONAL

Vol

42

Page

487-500

Author

Song, KI; Cho, GC[Cho, Gye-Chun]

Year

2009

Date

2009-09

Link

http://dx.doi.org/10.1016/j.ndteint.2009.02.007 730회 연결