受扰粉土随含水率变化强度恢复试验研究

Study on effect of moisture to strength recovery of disturbed silt

以太原粉土为研究对象,通过室内振动模拟粉土施工受扰过程,研究了人工改变含水率的情况下,受扰粉土力学性能的变化情况,然后通过无侧限抗压试验,探究了不同含水率下,扰动粉土触变强度变化情况。试验表明:土体扰动时间一致时,扰动程度与含水率呈正相关;扰动后土体静置相同时间,受扰粉土强度恢复与其含水率呈负相关。本文探究了受扰粉土含水率变化对其扰动程度和强度恢复之间的相关关系,为进一步研究受扰粉土力学性能随含水率的变化提供了一定参考。

Taking Taiyuan silt as the research object,by artificially changing the water content,and indoor simulated body vibration disturbed soil construction process,and then it＇s done unconfined compression test measured the stress-strain values,analyze moisture content in the same disturbance conditions under the law of the soil thixotropic strength of the recovery. The results show： the external disturbance time is the same,the higher the moisture content of the soil by the greater degree of disturbance; standing time under the same conditions,the intensity of the degree of recovery of its water content is negatively correlated. Explores the relationship between soil moisture restoration of its extent and intensity of the disturbance to provide a reference for the further study of soil moisture content is not the same physical properties studied.