NEHRP Clearinghouse

Title
Field Investigation and Analysis of Buried Pipelines Under Various Seismic Environments.
File
PB84124775.pdf
Author(s)
Wang, L. R. L.
Source
National Science Foundation, Washington, DC., August 1982, 20 p.
Identifying Number(s)
LEE-004
Abstract
A research project is proposed in which the behavior of oil, water, sewer, and gas pipelines under various seismic environments, including seismic shaking and large ground deformation would be investigated. It is suggested that the investigation be conducted in the Beijing and Tangshan areas. Three major hazards to underground pipelines are identified: the effect of wave propagation; ground rupture and differential movement along fault lines; and soil liquefaction induced by ground shaking. Ruptures or severe distortions of the pipe are most often associated with fault movements, landslides, or ground squeeze associated with fault zones. A model is presented to evaluate the general longitudinal responses of buried pipelines, both segmented and continuous, subjected to ground shakings and vibrations. The results of these tests will be used to develop aseismic codes for buried lifelines.
Keywords
Underground pipelines; Dynamic response; Ground motion; Field tests; Earthquake engineering; Pipelines; Earthquakes; Piping systems; Liquefaction (Soils); Pipe joints; Dynamic structural analysis