1. 1 College of Construction Engineering, Jilin University, Changchun, Jilin 130026, China
2. 2 Northeast Electric Power Design Institute Co., Ltd., Changchun, Jilin 130026, China
3. 3 China Water Northeastern Investigation, Design and Research Co., Ltd, Changchun, Jilin 130026, China
4. 4 North China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Changchun, Jilin 130000, China