Discussion of 'Inception Point and Air Concentration in Flows on Stepped Chutes Lined with Wedge-Shaped Concrete Blocks'

摘要

The authors are to be congratulated for carrying out a systematic investigation of flow over a stepped chute lined with wedge-shaped concrete blocks (hereafter called a stepped block spillway). As mentioned by the authors, Pinheiro and Revels (2000) showed that the channel excavated in the embankment and protected with wedge-shaped precast concrete blocks can offer anrninexpensive alternative to conventional concrete-cast in-situ solutions. The discussers carried out a case study of Chandrabhaga River Project in the Maharashtra State of India, for which a conventional ogee spillway is provided.