CAJ | 학술논문

针对岩石真三轴试验中存在的端部摩擦效应,运用Abaqus,模拟分析了传统式和互扣式两种端部垫块加载方式下端部摩擦对真三轴试验结果的影响。计算结果表明：两种加载方式下都产生了虚假中间主应力效应,且端部摩擦效应对岩石试样强度和变形的影响随着摩擦系数的增大而增大。花岗岩在两种加载方式下不同摩擦系数的一系列试验证实了该结论。
침대암석진삼축시험중존재적단부마찰효응,운용Abaqus,모의분석료전통식화호구식량충단부점괴가재방식하단부마찰대진삼축시험결과적영향。계산결과표명：량충가재방식하도산생료허가중간주응력효응,차단부마찰효응대암석시양강도화변형적영향수착마찰계수적증대이증대。화강암재량충가재방식하불동마찰계수적일계렬시험증실료해결론。
End friction effect exists in true triaxial tests.True triaxial tests are simulated using Abaqus where different loading types(traditional spacers and mutually overlapping spacers)and friction coefficient are considered.The simulation results indicate that illu-sive effect of intermediate principal stress is founded in two ways of tests.And the effect of the end friction on the strength and the deformation of the specimens increases with the increase of the friction coefficient.Result of true triaxial tests on granite is in accord-ance with the conclusion.