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在土石坝的设计与施工中,堆石料物理力学性质的试验研究是极其重要的环节。三轴压缩试验是土石料抗剪强度试验的一种较好的方法。这种方法具有明确的应力条件、能反映应力应变的全过程以及能根据现场情况模拟实际应力路线等优点,特别是有限元分析在土石坝中的应用,更需了解岩石应力、应变的全过程,因而它是一种较好的测试手段。近年来,国内一些单位研制出了一些大型三轴仪,但试件直径一般均在30厘米以内,其侧压力不超过8公斤/平方厘米,尚不能满足高土石坝建设的
In the design and construction of earth-rock dam, the experimental research on the physical and mechanical properties of rockfill materials is extremely important. Triaxial compression test is a better method for the test of soil-stone shear strength. This method has definite stress conditions, which can reflect the whole process of stress and strain and can simulate the actual stress route according to the site conditions. Especially the application of finite element analysis in earth-rock dams requires more understanding of the whole process of rock stress and strain , So it is a better test method. In recent years, some domestic units developed a number of large triaxial apparatus, but the specimen diameters are generally within 30 cm, the lateral pressure does not exceed 8 kg / square centimeter, still can not meet the high earth dam construction