【摘要】 通过对比混凝土四面体与特大块石这两种截流材料的抗冲稳定性和施工的方便性,分析了混凝土四面体截流材料在工程应用中存在的问题。指出:①混凝土四面体密度、综合稳定系数、化引球形粒径都偏小,在龙口的抗冲稳定性不如特大块石;②混凝土四面体制作麻烦,成本高,占地面积大,装运困难,抛投强度低,施工不如特大块石方便;③在截流施工中宜优先使用特大块石,慎用混凝土四面体。更多还原

【Abstract】 Some problems existing in practical application of tetrahedron concrete in river closure construction are analyzed through the comparison of its effect with that of oversize rock in stability of erosion control and convenience in construction.It is concluded that the stability of erosion control of tetrahedron concrete is inferior to that of oversize rock at the closure gap because the density and the stability coefficient of tetrahedron concrete as well as its size are relatively small,and that tetrahedron concrete is inconvenient in construction because of some difficulties in manufacturing,loading and transportation,high cost,large area to be occupied,and low dumping intensity. Therefore,in river closure construction,oversize rock is more suitable.更多还原