The Effectiveness of Physical Barrier During Freshwater Abstraction from Coastal Aquifer Zone

Abdelrahman Mohamed Abdelgawad Mohamed, Assiut University, Civil Engineering Department, Assiut, Egypt, Antoifi Abdoulhalik, Brunel University, Civil Engineering, Uxbridge, United Kingdom and Ashraf Ahmed, Brunel University, Civil Engineering Department, Uxbridge, United Kingdom