EFFECTS OF SOME FACTORS ON STRENGTH AND DEFORMATION CHARACTERISTICS OF SNAD AT LOW PRESSURES
EFFECTS OF SOME FACTORS ON STRENGTH AND DEFORMATION CHARACTERISTICS OF SNAD AT LOW PRESSURES
复制标题
一些因素对SNAD低压强度和变形特性的影响
DOI：
10.3208/sandf1972.26.105
复制
发表时间：
1986
影响因子：
3.7
通讯作者：
M. Sakamoto
中科院分区：
文献类型：
--
作者：
F. Tatsuoka;S. Goto;M. Sakamoto
摘要 为了评估丰浦砂三轴或平面应变压缩试验结果的普遍应用程度，研究了几个因素对低应力水平下强度和变形特性的影响。这些因素是（1）样品制备阶段的冻融顺序，（2）剪切、风干或饱和期间的潮湿条件，（3）烘干顺序和（4）风干条件下模型测试的重复使用。结果发现，在 σ3' = 0.05 ~ l.0 kgf/cm2 的低应力水平下，影响非常小或可以忽略不计。还详细描述了在 σ3' = 0.05 kgf/cm2 测试中用于测量三轴单元内轴向载荷的称重传感器。
ABSTRACT To evaluate how generally the results of triaxial or plane strain compression tests on Toyoura sand can be used, the effects of several factors on the strength and deformation characteristics at low stress levels were investigated. The factors are (1) a freeze-thaw sequence in the sample preparation phase, (2) the wet condition during shearing, air-dry or saturated, (3) an oven-drying sequence and (4) repeated usage in model tests under the air-dry condition. It was found that the effects are very small or negligible at low stress levels of σ3' = 0.05 ~ l.0 kgf/cm2. A load cell built to measure the axial load inside a triaxial cell in the tests at σ3' = 0.05 kgf/cm2 is also described in detail.