Study on the Dynamic Characteristics of Loess

Due to its special material composition, formation environment, and structure, loess usually shows different engineering dynamic characteristics from ordinary soil. Based on previous research results, this paper studies the Haiyuan loess. It is found that: (1) variation coefficients of various physical properties (except for liquid index) in region are relatively stable, but mechanical discrete; (2) correlation among natural water content, void ratio, density high, between poor; (3) consolidation effective confining pressure, shear modulus ratio change direct proportion, while damping changes opposite direction with increasing strain; (4) paper, recommended model wave velocity burial depth study area given. Compared example, error smaller more reliable. (5) The characteristic period seismic response spectrum soil layer not sensitive amplitude small.