软岩稳定蠕变的粘弹性和粘塑性特征1)
来源期刊：中南大学学报(自然科学版)1988年第3期
论文作者：马明军 钟时猷
文章页码：257 - 265
关键词：蠕变变形； 定常蠕变； 蠕变试验； 压缩蠕变； 岩石试验； 蠕变分析； 应变分量； 粘弹性； 粘塑性； 形变模量/软弱岩石
Key words：Deformation of creep； steady state creep； creep tests； compressive creep； rock test； creep analysis； components of strain； viscoelasticity； viscoplasticity； deformation modulus/weak rock
摘 要：本文根据东乡铜矿砂质页岩的单轴压缩蠕变试验结果,将稳定蠕变变形分解为粘弹性变形和粘塑性变形,并建立了二者与应力和时间的关系,进而讨论了粘弹性模量和粘塑性模量,粘弹性应变速率和粘塑性应变速率,以及应变延迟时间等问题。
Abstract: Based on the results obtained from the uniaxial compression creep tests of the sandy shale specimens of Dongxiang Copper Mine,stable creep strain is separated into visco-elastic and visco-plastic strains,and the relationships between visco-elastic strain and stress and time,and between visco-plastic strain and stress and time have been established in this paper.Furthermore,on this basis,several characteristic parameters for stable creep,including visco-elastic and visco-plastic moduli,visco-elastic and visco-plastic strain rates,strain retardation time etc.are discussed.
