摘要
介绍了三峡工程船闸区硬性结构面的蠕变试验结果 ,着重分析了结构面在恒定荷载作用下的蠕变性态。在试验研究的基础上 ,提出了结构面蠕变的剪切蠕变方程。研究表明 :结构面的剪切蠕变位移不仅是加载持续时间的函数 ,且与所施加的法向压应力和剪切应力的大小有关 。
The creep test results on hard structural plane in TGP's permanent lock regions are represented,and the creep status of structural plane under the acting of a constant load are emphatically analysed.Based on experimental study,the shear creep constitution equations of structural planes are proposed.The study results indicate that the shear creep displacements of structural planes are not only a function of duration of added load,but also depend on the magnitudes of exerted normal compression stresses and shear stresses.All coefficients in these creep equations increase with increasing of the ratio of shear stress and creep shear strength of structural planes.
出处
《长江科学院院报》
CSCD
北大核心
2000年第4期30-33,共4页
Journal of Changjiang River Scientific Research Institute
基金
国家自然科学基金委员会和中国长江三峡工程开发总公司联合资助的国家自然科学基金重大项目 !( 594 936 0 0 - - 4)
关键词
硬性结构面
剪切蠕变试验
岩体
三峡船闸区
hard structural plane
shear creep test
loading history
creep constitution equation
creep shear strength
