Jielian Zheng *,Jianjun Wang
a College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China
b Guangxi Communications Investment Group Co.,Ltd.,Nanning 530022,China
c Guangxi Road and Bridge Engineering Group Co.,Ltd.,Nanning 530011,China
The authors regret to inform that the corresponding author should change to Jielian Zheng(e-mail address:zhengjielian@163.-com)from Jianjun Wang.
The authors would like to apologize for any inconvenience caused.