1. Professor, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, China.
2. Engineer, CISPDR Corporation, 1863 Jiefang Rd., Wuhan 430010, China.
3. Engineer, Zibo Water Supply Co., Ltd., 366 Shiji Rd., Zibo 255020, China.
4. Assistant Professor, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, China (corresponding author).