The break-up of the gas piping, the letting out of liquefied petroleum gas, the bursting of the running water pipe, calamity accident caused in subside of road surface and bridge,etc.

By using the response spectrum method, analysis of vertical seismic responses for the cable - stayed pipe bridge system is carried out.

This paper introduces a reinforce roadbed technology with pipe shed when tunnel bridge pass through roadbed using incremental launching method and highway traffic not be discontinued.