Abstract：Research purposes: By using triaxial test this paper researches the tress-train relationship } strength property of loess due to wetting } strength characteristics and influence factors.
Research methods: Based on the tests under isotropic consolidation and triaxial shear, the wetting properties of loess are obtained.
Research results: The strain-time relationship，the influences of initial moisture content and dry density under isotropic consolidation are obtained. The tress-train relationship varying with tress level ， the properties of train，strength property of wetting loess under triaxial shear are obtained.
Research conclusions: (1)The tremendous influence on humidification deformation by initial moisture content and compaction degree ;(2)The stress-strain relationship should behave as strain hardening characteristics under the conditions of humidification and non-soaking;(3)The shearing humidification volumetric deformation decreases with the increasing of stress level while the axial deformation increases with the increasing of stress level; Under the same stress level } both the volumetric deformation and axial deformation decrease with the increasing of average main tress; (4 ) The humidification decreases not only the strength of loess but also the strain of loess when achieving failure.
2007, Vol. 24 
版权所有 © 2014 《铁道工程学报》编辑部