http://reply.papertrans.cn/3/273/27298/27298-31.png
Submitted on: 21 February 2002.
Revised on: 05 April 2002.
Accepted on: 26 April 2002.
ROCK MECHANICS AND ROCK ENGINEERING
Submitted on: 01 October 2002.
Revised on: 26 October 2002.
Accepted on: 11 November 2002.
ROCK MECHANICS AND ROCK ENGINEERING
http://reply.papertrans.cn/3/273/27298/27298-34.png
http://reply.papertrans.cn/3/273/27298/27298-35.png
Submitted on: 27 February 2007.
Revised on: 04 April 2007.
Accepted on: 28 April 2007.
ROCK MECHANICS AND ROCK ENGINEERING