Abstract：In order to design effectively on spallation-resistance for underground concrete structures，stress histories within concrete structures must be determined correctly. Considering the influence of spallation planes on stress wave propagation，formulas of stress histories within concrete structures are presented on the basis of one-dimensional stress wave propagation theorem. The numerical example shows that the stress histories within concrete agree well with reality by using the proposed methods，compared with methods which do not consider the influence of spallation planes. This can provide a more common method to analyze and evaluate the local response of concrete structures under blast loads.
