...Hamdan N. Al-Ghamedy; Sahel N. Abduljauwad; Junaid A. Siddiqui; Naser A. Al-Shayea; Ibrahim M. Asi A method of calculating soil cover requirements for horizontally bent buried pipelines is described. In sequence, the results of a comprehensive three-dimensional finite element analysis are used...

...Fraser King; Russell Given; Robert G. Worthingham; Greg Van Boven Buried pipelines can be subject to transitional environments due to changes in soil type or moisture content. Changes in the height of the water table, for example, will affect not only the availability of water but also the access...

...Sahel N. Abduljauwad; Hamdan N. Al-Ghamedy; Junaid A. Siddiqui; Ibrahim M. Asi; Naser A. Al-Shayea This paper discusses the stability of underground pipelines with preformed vertical bends buried in sandy soil. More specifically, the minimum cover height required to prevent the pipe from bowing...

...J. C. Chen; O. R. Maslenikov This paper summarizes our seismic analysis of the soil structure interaction (SSI) responses of N-reactor facility. In the SSI analysis, CLASSI computer codes were used to calculate SSI responses of the structures and to generate the input motions for the nonlinear...

... for major earthquake motions is (1) basic design spectra defined at the engineering bedrock, and (2) evaluation of site response from geotechnical data of surface soil layers. The principle of evaluation procedures is that the predicted response values should not exceed estimated limit values...