摘要
片岩斜坡中弯曲倾倒变形是通过密集的片理上逐层剪切位移实现的。文中给出了瞬时变形终止时σ１与片理面法线夹角γ的理论公式。瞬时变形结束后，由于片理面上剪应力作用，将继续发生剪切蠕变。本文给出了γ随着时间ｔ变化的公式。最后本文讨论了地下水压力在倾倒变形中的作用，并在理论公式中考虑了这一因素。
The bending and toppling deformation in slopes of mica quartz schist occurs due to shear displacement slice by slice of schist with concentrated schistosities. The paper gives a theoretical formula of angle γ between σ 1 and the normal to schistosity plane when the instantaneous deformation is finished. Since then, shear-creep will take place along the schistosities by the shearing stress acting on the plane. The formula of γ t is given in the paper. At last, the effect of groundwater pressure on the bending and toppling deformation is also discussed and considered in the theoretical formulas.
出处
《工程地质学报》
CSCD
1997年第4期306-311,共6页
Journal of Engineering Geology
基金
中国科学院特别支持领域资金
关键词
片岩
云母石英片岩
斜坡
倾倒变形
地下水压力
Bending and toppling deformation, Instantaneous deformation, Creep model, Groundwater pressure.
