Study on Seismic Spectrum and Amplification Effect of Soft Soil in Tianjin New Coastal AreaFu Zhanling, Cao Jingquan, Gao Wuping and Yao XinqiangE3S Web Conf., 253 (2021) 01003DOI: https://doi.org/10.1051/e3sconf/202125301003