Abstract: Based on a large number of practice and production check up, this paper presents a set of procedures for filling up embankment by directional blasting at a close distance. Collapse-slippery principle and triangular area balancing method are used to develop the calculating formulas and law of piling after blasting in various topography. Through four hundred and more applications in the last twenty years, it has become a new effective engineering blasting method, which could be used along a river line without retaining walls slope protection and viaduct. Therefore, it is very practical and of economical significance.