摘要
龙滩工程碾压混凝土重力坝，最大坝高２１６．５ｍ，当大体保持原重力坝断面尺寸前提下，要求碾压混凝土浇筑层面有较高的抗剪强度，根据现有工程经验和库仑抗剪理论，采用富胶凝材料ＲＣＣ技术，经大规模现场试验和较大尺寸（５Ｏｃｍ×５Ｏｃｍ）原位抗剪试验，获得可靠的试验成果，为龙滩高ＲＣＣ坝的设计提供了依据。
Longtan dam is a high RCC gravity dam which needs high shearing strength on liftjoints,According to coulomb's theory,shearing strength τ is the function of friction coefficient fand cohesion strength c,i·eτ=fσ+c. Both f and c are random variables which depend on material ingredients and technology.Moreover,f is a dimensionless quantity without size effect.By largescale site test of shearing strength with large size specimens,data needed for design Longtan highRCC dam have been obtained.
出处
《红水河》
1995年第3期12-17,共6页
Hongshui River
