TA379 : Respose of undergroude Water Pipes Duo to Surface Blast Loads
Thesis > Central Library of Shahrood University > Civil & Architectural Engineering > MSc > 2014
Authors:
Leila Ganji [Author], Reza Naderi[Supervisor]
Abstarct: Vital arteries , including water transfer lines , the collection and transfer of waste , transportation of gas and oil etc. as the main components of any city in the first place , and in this regard the importance of investments each year in the making and run them done.. A problem in one part of the pipeline will shut down the entire network is , therefore, the need for extensive studies on their performance against a variety of loads , including loads of explosion of the earthquake is . The thesis investigates the behavior of buried water pipelines against load caused by explosions 's surface . In this context , the free field blast analysis is done on the surface to be checked inside the blast wave propagation phenomenon . This analysis is done by the ALE method , as the load for analyzing the behavior of buried water pipelines used to examine the impact of the load on transmission lines to pay for water at different depths . In the next step , baxsed on the solution of differential equations governing the behavior of quasi-static tubes in the simplified case , relationships to analyze pipelines buried in both elastic and inelastic behavior of the blast is recommended. Finally , using detailed finite element modeling , the effects of various parameters affecting the behavior of buried pipelines , such as the big bang explosion was investigated and depth of the tubes and other approaches , including the method Euler and Lagrange comparisonCompare . This comparison shows always Euler and Lagrange methods (especially Lagrangian ) has not been able to analyze the phenomenon of the explosion and that the combination of these two methods ALE and corrected their flaws capable of analyzing non-linear behavior and large deformations in phenomena such as detonation.
Keywords:
#buried pipes #surface blasting #water transmission lines #vulnerability #ALE Method #dynamic response Link
Keeping place: Central Library of Shahrood University
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