中国尾矿坝地震安全度（10）──用动单剪仪研究大石河尾矿砂的动特性  

EARTHQUAKE SAFETY OF CHINESE DAM(10)──CYCLIC SIMPLE SHEAR BEHAVIOR OF DASHIHE TAILINGS SANDS

作　　者：王余庆[1] 辛鸿博[1] 

机构地区：[1]冶金部建筑研究总院

出　　处：《工业建筑》1995年第3期37-40,59,共5页Industrial Construction

摘　　要：本文用动单剪仪对大石河三种尾矿砂样的动特性进行了研究。内容包括：动模量比、阻尼比随剪应变的变化规律；液化应力比、动剪应变及动孔压随循环数的变化规律；试样达液化标准后在不排水条件下静剪应力随静剪应变的变化规律。研究成果已用于大石河尾矿坝的震害分析。Cyclic behavior of Dashihe tailings sands was investigated by means of cyclic simple shear apparatus. The following relationship were studied: variations of dynamic shear modulus ratio and damping ratio with shear strain,variations of cyclic stress ratio,cyclic shear strain and residual pore pressure with cycle,variation of post-liquefaction shear stress with shear strain.

关 键 词：尾矿坝 动单剪仪 动力特性 动模量比 液化 

分 类 号：TV649[水利工程—水利水电工程]