标准砂液化试验的几个问题

用机械式及液压式振动三轴仪进行标准砂的液化试验,以比较仪器型式对动强度的影响;还比较了试样尺寸的影响。进行了等压及不等压固结条件下的两组试验。讨论了仪器型式、破坏标准及动强度指标等问题。

Some Problems on Liquefaction Tests of Standard Sand

Using mechanical dynamic triaxial test apparatus and electro-hydraulic dynamic triaxial test apparatus, liquefaction tests of a saturated standard sand were conducted in order to compare the effects of apparatus type, and sample size on dynamic strength. Two groups of test were performed concerning consolidated condition. One was under the condition of isotropic consolidation and the other under the condition of anisotropic consolidition.According to the test results, some points such as apparatus type, failure criteria and dynamic strength parameters of sand are discussed.