The gist of this paper is to study the relationship between the loess tectonic joints and the development of hydrographic net in Luochuan plateau The statistical analysis and comparison of the loess tectonic joints and the river system show that the joints control the main branches strikes of Luo river and have weak effect on the extending of the modern loess gully head

Understanding failure functions caused by earthquakes on the basis of seism-genesis soil-layer structures in Anqiu area,Tancheng-Lujiang seismic zone;

The stratiform features of stratified structural soil make its anisotropic characteristics more prominent and make it difficult to obtain the physical and mechanical properties of stratified structural soil and to evaluate its consolidated settlement and bearing capacity,thus affecting the selection of foundations for maritime structures.