A STUDY OF DIFFERENT ASPECTS OF DIAPHRAGM WALLS

This paper traces the highlights of different aspects of diaphragm walls with regard to their design and methods of construction. Special attention is given to some practical points that need consideration, discussion or further research. First, the principles of the construction technique, methods of trenching, tools and tolerance for cast-in-place concrete diaphragm walls are introduced. The behaviour and control of bentonite suspension are also indicated. Finally, the paper treats the use of diaphragm walls as load-bearing foundations in comparison with piles, from the point of view of base resistance and skin friction.