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胶凝砂砾石料剪切强度与变形特性研究

发表时间:2014-07-31  浏览量:1471  下载量:595
全部作者: 蔡新,杨杰,郭兴文
作者单位: 河海大学力学与材料学院;河海大学水利水电学院
摘 要: 依据不同胶凝掺量下的胶凝砂砾石料大三轴试验结果,探讨胶凝砂砾石料峰值强度及残余强度摩尔-库伦包络线特征,同时研究胶凝砂砾石料割线模量与胶凝掺量、围压的关系。研究结果表明:胶凝砂砾石料的剪切强度特性近似满足摩尔-库伦准则;围压越大,胶凝砂砾石料割线模量越大;胶凝掺量增加对胶凝砂砾石料的割线模量的影响不明显,但对割线模量的影响较为显著。
关 键 词: 水工结构;剪切强度特性;变形特性;三轴试验;胶凝砂砾石料
Title: Experimental analysis of the shear strength and the deformation characteristics of cement sand and gravel
Author: CAI Xin, YANG Jie, GUO Xingwen
Organization: College of Mechanics and Materials, Hohai University; College of Water Conservancy and Hydropower Engineering, Hohai University
Abstract: The present work is concerned with investigating the shear strength and the deformation characteristics of cement sand and gravel based on a large number of triaxial test results of such material from three different aspects, including Mohr envelope characteristics of the peak strength, Mohr-Coulomb envelope characteristics of residual strength and the influence of cement content and confining pressure on secant modulus. It has been found that the shear strength of cement sand and gravel meet Mohr-Coulomb criterion; the secant modulus of cement sand and gravel increase with confining pressure increasing. The influence of cement content increases on the modulus of cement sand and gravel is ignored, but on the secant modulus is significant.
Key words: hydraulic structure; shear strength characteristic; deformation characteristic; triaxial test; cement sand and gravel
发表期数: 2014年7月第14期
引用格式: 蔡新,杨杰,郭兴文. 胶凝砂砾石料剪切强度与变形特性研究[J]. 中国科技论文在线精品论文,2014,7(14):1448-1453.
 
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