similarity parameters
1.Therefore, the determination of design parameters for the scale-up of the polymerizer this time is based on the scientific analysis of relevant factors during polymerization and with reference to the test result, thus realized the similarity of key parameters of the big and small polmerizers and the process similarity. The successful scale-up of HSBR polymerizer and SBR-1502 latex polymerizer provides reliable basis for future scale-up ofbutyl styrene series.
3.We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3-D space time gradient and coherent coefficient et al., and puts forward the processing method of 3-D seismic characteristic parameters about denoise-smoothing, generalization, correlation analysis, characteristic transformation; and presents the method of pattern recognition of mine engineering fracture zone.
4.2)Laboratory uniaxial compression tests、 split tests and confined shear tests wereconducted to obtain the rock mechanical parameter. Combine the practice experience and acquired production, the rock -mass mechanical parameters necessary for numerical simulation and similarity simulation were established.

