作者单位: | 1.China Railway Chengdu Group Co., Ltd., Chengdu610082;2.China Railway 18th Bureau Group Corporation Limited., Tianjin300222;3.School of Civil Engineering, Central South University, Changsha410075;4.China Railway Southwest Research Institute Co., Ltd., Chengdu611731;5.China Tiesiju Clvil Engineering Group Co., Ltd., 4, Hefei230000; |