PREFACE 



This report is published to provide coastal engineers with an analysis 

 of wave-induced forces on a submarine pipeline near the ocean floor. The 

 work was carried out under the structural design program of the U.S. Army 

 Coastal Engineering Research Center (CERC) . 



The report was prepared by George L. Bowie, Research Assistant, 

 University of California, Berkeley, under CERC Contract No. DACW72-74- 

 C-0004. 



The author acknowledges the help and advice of Professor R.L. Wiegel, 

 Professor J.W. Johnson, and Dr. J.D. Cumming, throughout different stages 

 of the project. Many thanks also go to Dr. M.F. Al-Kazily, J. Allison, 

 and L. Magel for their help in designing and setting up the instrumentation 

 for the experiments, and to W. Krogmoe, E. Parscale, and W. Matthew for 

 their skillful assistance in building the models. 



Dr. J.R. Weggel was the CERC contract monitor, under the general 

 supervision of G.M. Watts, Chief, Engineering Development Division. 



Comments on this publication are invited. 



Approved for publication in accordance with Public Law 166, 79th 

 Congress, approved 31 July 1945, as supplemented by Public Law 172, 88th 

 Congress, approved 7 November 1963. 



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fJOHN H. COUSINS 

 Colonel, Corps of Engineers 

 Commander and Director 



