SEISMIC RESPONSE OF BURIED PIPE LINES AND PREPARATION OF SEISMIC RESISTANT JOINT

The pipe lines are the transfer medium which is used to transfer the substances like water, oil, gases from one place to another place. Buried pipelines perform vital function in maintaining integrity of the nation's economy and population. The buried pipe lines which are situated in seismic zone can be able to get affected during an earthquake. Once the pipe line system gets failed, there is a difficulties to repair it because it is situated below the ground and also it will take too much of cost to repair it. During an earthquake the both surface and body seismic waves are propagate through the ground can cause the movement of grounds. The piping systems which are connected by the different kind of joints bolts, welds or the rivet type of joints. In this paper deals with the seamless steel carbon pipe which is welded by seamless weld in the project of Chennai Petroleum Corporation Limited that is the Crude oil pipe line laid from Chennai Manali to Chennai port. The Chennai city comes under the Earthquake zone III. The recent intensity of earthquakes also studied in and around the Chennai city through the recent journals. So, in this paper the pipe line Model has been created and response spectrum analysis for the corresponding zone is done using structural analysis software. From the response of the model the most effective joints of pipe lines prepared by introducing new seismic resistant techniques.