Based on the principles of overlapping stress-wave of all elements charge blasting

the basic computation graph of stress wave parameter during strip explosive charge blasting was abtained .consequently

a computation method of open-hole blasting was postulated .combined with in situ data

a computer program in fortran code was designed and then the calaulation of stress-wave parameter of rock mass during open-hole strip charge blasting was made ;The consistency of computed results with observed data wasfine .The laws of stress-wave propagation and the stress distribution characteristics for open and closed-hole blasting were discussed .The computed data were compared and evaluated with in situ data .these data could be used as a basis of reference in practical engineering .