On the other hand,the variety of goods on the sea route in China-Arab trade increased and trading route became clear,and China and Arabian Empire were complimentary in trade.

In order to resolve the problem of the coastal highway construction in Liaoning province,and to save the construction fund,using the experience of South Africa,this article propose the research on the application of structure of strong foundation and thin pavement in coastal highway construction.

Based on the design experience of Weihai coastal highway from Rushan Nanzhai to Xishan Zhaojia,how to use construction experience of coastal highway landscape at home and abroad is discussed.

The corrosion failure mechanism of the materials in service is discussed on the basis of analyzing the structural morphology of welded tube joint used in sea water pipeline system.

The application of GPS positioning technique in LianYunGang sea dike road doing the control surveying is presented in this paper,discussing some relevant problems of GPS positioning technique to used for line control surveying,mainly include to dispose network,choose a point to cover up a stone,collection of field data and data processing etc.

In this paper,the changes in Nanpu shallow water geomorphology are expounded based on the observed data,the changes in geomorphology such as coastline,sand bar and tidal creek are studied by taking the east sea access road engineering as an example,and the reasons for the changes are also analyzed.