关键词: 泄水闸, 海漫, 挤压成型, 嵌套, 兴隆水利枢纽

Abstract:

The foundation of sluice of Xinglong Hydro-complex is a deep-thick fine sand one, with the smallest anti-scouring capacity, so the erosion depth would be large and quickly develope once the apron is destructed, which endangers the safety of the sluice. Therefore, a highly reliable apron type should be studied. Enlightened by the mosaic grass brick, we developed a new type of mosaic flexible concrete apron according to the practical construction condition. The new apron is consisted of mosaic H-shape bricks and each brick is connected with another, which has advantages of well integrity and better anti-scouring performance. The brick concrete is C25 level and made by extraction modeling of dry concrete, with a size of 48cm (length and width) and 25cm (thickness), so the construction of apron is highly efficient and convenient. The project operation practice also shows that the anti-scouring performance of the new apron is satisfied.

Key words: discharge sluice, apron, extraction modeling, nested, Xinglong Hydro-complex