CAJ | 학술논문

一些土石坝在建成后后期变形明显，这与粗粒土的流变密切相关。目前，粗粒土流变研究主要集中在力学性质试验和本构模型研究等方面，较少对粗粒土流变中的颗粒运动规律进行研究。通过单级配矾石CT三轴流变试验，研究了粗粒土流变过程中颗粒运动规律。试验结果表明，粗粒土的流变过程就是粗粒土颗粒位置相互调整的过程，即颗粒从不稳定结构状态向稳定结构状态调整变化的过程，直到所有颗粒的能量都达到最小状态，此时颗粒不再发生错动、转动和破碎，粗粒土达到流变稳定状态。对粗粒土三轴流变过程中颗粒运动规律的认识，有助于加深对粗粒土流变性质的了解，为工程应用提供参考。
일사토석패재건성후후기변형명현，저여조립토적류변밀절상관。목전，조립토류변연구주요집중재역학성질시험화본구모형연구등방면，교소대조립토류변중적과립운동규률진행연구。통과단급배반석CT삼축류변시험，연구료조립토류변과정중과립운동규률。시험결과표명，조립토적류변과정취시조립토과립위치상호조정적과정，즉과립종불은정결구상태향은정결구상태조정변화적과정，직도소유과립적능량도체도최소상태，차시과립불재발생착동、전동화파쇄，조립토체도류변은정상태。대조립토삼축류변과정중과립운동규률적인식，유조우가심대조립토류변성질적료해，위공정응용제공삼고。
Some earth and rockfill dams have significant later stage deformations after constructions, which are closely related to the rheology of coarse-grained soils. The study of rheology for coarse-grained soils mainly focuses on mechanical tests and constitutive models. However, particle movement of coarse-grained soils in rheological test is not well evaluated. The CT triaxial rheological test of a single grading aluminite is conducted to investigate the particle movement of coarse-grained soils. The test results show that the rheological process is an adjustment process of particle position from unstable structure state to stable structure state for particles in coarse-grained soils. The rheological process will not stop until all particles reach the minimum energy state. No particles move, rotate, and break under the rheological steady state. The investigation of particle movement for coarse-grained soils contributes to the understanding of rheological behavior of coarse-grained soils, and also helps to provide reference to engineering application.