Jinjiguan tunnel on Chuan-Zang highway at Ya-an was entirely open to traffic on January of 1995, however,about in 2001 the two tunnels of it appeared water penetration and deformation to a different degree with crevices and upheaval.

Laboratory model test for evolution of seepage deformation controlled by means of suspended cut-off wall in foundation of dike;

Development of apparatus for measuring permeability coefficient and seepage deformation of coarse-grained soil;

The problem of the seepage deformation caused by tunneling:a case of a tunnel in Nanjing area;

The fractional dimension of impact fractured surfaces of 08Al steel after deform-nitriding were measured by vertical section method.

After applying the simulated tests and the finite elements method, the stability and infiltrational deformation of filmsy the mountain have been analyzed and calculated.