(1. School of Civil Engineering and Transportation，South China University of Technology，Guangzhou，Guangdong 510641，
China；2. State Key Laboratory of Subtropical Building Science，South China University of Technology，Guangzhou，Guangdong 510641，China)
摘要With the improved direct shear creep apparatus，seven sets of creep tests were conducted on specimens containing organic clay，quartz and feldspar with different weight percentages and different spatial distribution under the same experimental conditions. The relationships of the sample average coefficient of viscosity with rheological material content and dimension were obtained. The influence of content and distribution of rheological material on soil creep properties were discussed. Some conclusions were drawn：the average coefficient of viscosity reduces with decreasing rheological material size as well as increasing spatial distribution uniformity，and tends to be a critical value. Rheological material content has a notably significant effect on the creep characteristic. With the increase of organic matter content，average viscosity coefficient decreases linearly. When the soil rheological material size is less than the critical size，soil creep characteristics are only related to the content and properties of rheological material，but not related to its shape and distribution form.
Abstract：With the improved direct shear creep apparatus，seven sets of creep tests were conducted on specimens containing organic clay，quartz and feldspar with different weight percentages and different spatial distribution under the same experimental conditions. The relationships of the sample average coefficient of viscosity with rheological material content and dimension were obtained. The influence of content and distribution of rheological material on soil creep properties were discussed. Some conclusions were drawn：the average coefficient of viscosity reduces with decreasing rheological material size as well as increasing spatial distribution uniformity，and tends to be a critical value. Rheological material content has a notably significant effect on the creep characteristic. With the increase of organic matter content，average viscosity coefficient decreases linearly. When the soil rheological material size is less than the critical size，soil creep characteristics are only related to the content and properties of rheological material，but not related to its shape and distribution form.
袁 杰1，2，房营光1，2，谷任国1，2，胡桂衔1，2 . 流变物质含量及其分布对软土蠕变特性影响的试验研究[J]. 岩石力学与工程学报, 2014, 33(sl): 2924-2929.
YUAN Jie1，2，FANG Yingguang1，2，GU Renguo1，2，HU Guixian1，2. EXPERIMENTAL STUDY FOR INFLUENCE OF CONTENT AND DISTRIBUTION OF RHEOLOGICAL MATERIAL ON SOFT SOIL CREEP PROPERTIES. , 2014, 33(sl): 2924-2929.
谷任国，房营光. 矿物成分对软黏土流变性质影响的试验研究[J]. 岩土力学，2007，28(12)：2 681-2 686.(GU Renguo，FANG Yingguang. Experiment study on effects of mineral composition on rheological characteristics of soft clayey soil[J]. Rock and Soil Mechanics，2007，28(12)：2 681-2 686.(in Chinese))
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2014, Vol. 33 
