http://reply.papertrans.cn/1/87/8637/8637-21.png
Submitted on: 29 September 2011.
Revised on: 28 October 2011.
Accepted on: 12 December 2011.
___________________Environmental Geotechnics---EMERALD GROUP PUBLISHING LTD
Submitted on: 01 March 2002.
Revised on: 22 May 2002.
Accepted on: 11 June 2002.
___________________Environmental Geotechnics---EMERALD GROUP PUBLISHING LTD
http://reply.papertrans.cn/1/87/8637/8637-24.png
http://reply.papertrans.cn/1/87/8637/8637-25.png
http://reply.papertrans.cn/1/87/8637/8637-26.png
http://reply.papertrans.cn/1/87/8637/8637-27.png
http://reply.papertrans.cn/1/87/8637/8637-28.png
http://reply.papertrans.cn/1/87/8637/8637-29.png
http://reply.papertrans.cn/1/87/8637/8637-30.png