The dynam relaxed rockmass at Daliushu in Heishanxia Gorge on the Yellow River contains a great quantity of weak intercalations, which control the dynam relaxed rockmass physical and mechanical properties to a great extent.

Study on evaluation of deformation modulus of no clay weak interbed;

Through analysing the correlation between physical property of no_clay weak interbed obtained by in_situ test and its existed geostress,and combining the confining pressure simulating test results of disturbed weak interbed sample,we show that the controlling effect of confining pressure to physical property of no_clay weak interbed is very evident,as the same of clay weak interbed.

Analysis on influence of weak fractured zones on deformation and stability of a right dam-abutment by FLAC~(3D);

On soft interlayer affecting roadway stabilization in roof

The authors calculated the reaction spectra of seismic waves that came from the practical soil layer at different depths and, by modifying the practical soil layer parameters and analyzing the spectra of seismic waves in varied depths of the soil layer and the soft interlayers, drew some significant conclusions.

This paper introduces the stable analysis calculation for the sluice chamber motherboard slide along rock foundation and soft interlayer,under non earthquake condition for the spillway chamber of Guanhe reservoir,and resist earthquake check computation.