论文部分内容阅读
在日本,下伏第三纪软沉积岩地带经常发生蠕动滑坡。就丘陵阶地现有的土地而论,此类滑坡是一重要的土工技术问题,并且是这些地区未来开发时的主要约束条件。文中,利用新近研制的土样直剪仪,完成了重复剪切和蠕变试验,从而详细研究了滑坡粘土(取自原状第三纪泥岩)的应力—应变—时间影响。以流变模型为基础推导出了材料的本构方程。用实际结果和计算结果之间的比较检验了得出的本构模型。结果证明了该本构模型可以预测滑坡的变形。
In Japan, creep landslides often occur in the Lower Tertiary soft sedimentary rocks. As far as the existing land in the hilly terrain is concerned, such landslides are an important geotechnical issue and are the main constraints for the future development of these areas. In this paper, the repeated shearing and creep tests were completed using a newly developed direct soil shear tester to investigate in detail the stress-strain-time effects of landslide clay (derived from undisturbed Tertiary mudstone). Based on the rheological model, the constitutive equation of the material is deduced. The resulting constitutive model was tested using the comparison between the actual and calculated results. The results show that the constitutive model can predict landslide deformation.