Analysing the consequence of gas pipeline explosion safety impact

Nowadays, most of the analysis of the explosion of und erground gas pipeline consequences did not consider the tunnel's covering ground conditions. In this paper,the risk are analyzed w ith considering and without considering of covering rock layer of pipe problems, through the relevant modeling, application of M ATLAB software,carried out the simulation to the final blasting effect.And made a final disscion of the two kinds of simulation r esults respectively.