CHAPTER 8 



ENGINEERING ANALYSIS - CASE STUDY 



8.1 INTRODUCTION 



This chapter presents a series of calculations for the preliminary 

 design of a hypothetical offshore island in the vicinity of Delaware Bay. 

 It serves to illustrate the interrelationships between many types of 

 problems encountered in coastal engineering. The text progresses from 

 development of the physical environment through a preliminary design of 

 several elements of the proposed structure. 



For brevity, the design calculations are not complete; however, 

 when necessary, the nature of additional work required to complete the 

 design is indicated. It should be pointed out that a project of the 

 scope illustrated here would require extensive model testing to verify 

 and supplement the analysis. The design and analysis of such tests is 

 beyond the scope of this manual. In addition, extensive field investi- 

 gations at the island site would be required to establish the physical 

 environment. These studies would include a determination of engineer- 

 ing and geological characteristics of local sediments, as well as measure- 

 ment of waves and currents. The results of these studies would then have 

 to be evaluated prior to beginning a final design. 



While actual data for the Delaware Bay site were used when avail- 

 able, specific numbers used in the calculations should not be construed 

 as directly applicable to other design problems in the Delaware Bay 

 area. Calculations are presented as examples of the techniques pre- 

 sented in this manual. 



8-1 



