Preliminary research on formation and long-term stability of cliff along the bank of the Three gorges reservoir;

Automatic extraction of gullies and cliffs from topographic map;

This paper discussed the method for cliff of large-scale topographic map, combining with the topographic mapping process in Wuhan Top-pot Mountain, made a test of using cliff symbols and contour to show the realistic cliff and discussed the adaptation conditions, proposed a view of choosing contour interval when using contour to show cliff in accordance with relative elevation of cliff.

Due to the limitation of terrain and culture on construction of expressways in mountainous areas,it is common to lay out lines on abrupt slope.

This paper introduces credible computing methods for discharge of starting ski jump and ending ski jump according to several cases such as abrupt slope,slope,zero slop and diffuser connecting to the front of nose of weir,which are compared with practical projects.

Practice of blasting for construction of railway foundation on steep slope;

Indoor experimental studies on hydrodynamic characteristics of runoff in rill erosion procession steep slope;

Indoor experiment of characteristics of runoff erosion in loess steep slope;

The process of the scarp retreat is a key to understand the evolution of the Changjiang River.