Moreover, combined with the intensive freeze-thaw effect characteristics in high altitude and high seismic intensity areas, the discontinuous deformation analysis program was applied to simulate the whole process of slope deformation and failure vividly on the basis of introducing the freezing and thawing reduced coefficient.

Clonal repeatabilities of specific heat coefficient,thermal conductivity coefficient and warm transfer coefficient were 0 59,0 77 and 0 62 respectively, indicating that wood thermal properties were under moderate or strong genetic controls.