摘要
超贫胶结混凝土土石面板坝是水利工程中的一种新坝型。利用高压三轴仪对构成这种新坝型的超贫胶结混凝土的力学特性进行了试验研究,结果表明:超贫胶结材料的应力-应变曲线在轴向应变较小时,基本符合双曲线模型特征;在同一围压下,胶凝材料用量越大,峰值强度越大;在同一胶凝材料含量下,围压越大,峰值强度越大;超贫胶结混凝土具有较大的残余强度,胶凝材料含量越大或周围压力越大,残余强度越大;超贫胶结混凝土材料的抗剪强度随着水泥用量的增大而增大。
Concrete rock and earth plate dam of super-short cement is a new type of dam in hydraulic structures.The paper tests and studies the mechanical character of this new type of dam by using high-pressure triaxial apparatus.The outcomes show that the stress-strain curve of super-short cement material basically tallies with the characteristics of hyperbolic model when axial strain is smaller;the more cement material is used,the greater the peak intensity under the same confining pressure;the greater the confining pressure,the greater the peak intensity under the same content of cement material;the super-short cement concrete possess greater residual intensity,the greater content of cement material or surrounding pressure,the greater the residual intensity and;the shearing resistance of this material is increased along with the increase of cement consumption.
出处
《人民黄河》
CAS
北大核心
2007年第3期59-60,共2页
Yellow River
基金
水利部重点科研项目(sz9509)
关键词
超贫胶结
混凝土
高压三轴仪
应力-应变曲线
super-short cement,concrete,high-pressure triaxial apparatus,stress-strain curve
