| 非饱和重塑黏土在不同击实条件下的土水特征曲线试验研究 |
| |
| 引用本文： | 伊盼盼,牛圣宽,韦昌富,颜荣涛.非饱和重塑黏土在不同击实条件下的土水特征曲线试验研究[J].中国农村水利水电,2011(9). |
| |
| 作者姓名： | 伊盼盼 牛圣宽 韦昌富 颜荣涛 |
| |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
2. 长江勘测规划设计研究有限责任公司,武汉,430010 |
| |
| 基金项目： | 国家自然科学基金(19872211); 岩土力学与工程国家重点实验室重点方向性项目(Q110601); 中国科学院“百人计划”择优项目资助 |
| |
| 摘 要： | 采用压力板仪对非饱和重塑黏土在2种不同击实条件下的土水特征曲线进行了研究。即对该重塑土样开展标准击实试验,在击实曲线上取同一干密度对应的不同击实含水率的试样和击实曲线上最优含水率处的试样,并通过增加击实次数,得到另外2种击实干密度的试样,对上述试样进行土水特征曲线测试,并采用常用的土水特征曲线模型Van Genuchten模型、Fredlund 3参数模型、Fredlund 4参数模型对实测试样的土水特征曲线进行了拟合,其拟合结果较好。研究发现,击实干密度越大,空气进入值越高,试样持水能力越强。击实含水率越大,试样可塑性越好,持水能力越强,空气进入值也越大。
|
| 关 键 词： | 非饱和重塑黏土 土水特征曲线 击实干密度 击实含水量 |
An Experimental Study of Soil Water Characteristic Curve of Remolded Unsaturated Clay Considering the Influence of Compaction |
| |
| YI Pan-pan,NIU Sheng-kuan,WEI Chang-fu,YAN Rong-tao.An Experimental Study of Soil Water Characteristic Curve of Remolded Unsaturated Clay Considering the Influence of Compaction[J].China Rural Water and Hydropower,2011(9). |
| |
| Authors: | YI Pan-pan NIU Sheng-kuan WEI Chang-fu YAN Rong-tao |
| |
| Institution: | YI Pan-pan1,NIU Sheng-kuan2,WEI Chang-fu1,YAN Rong-tao1(1.State Key Laboratory of Geo-mechanics and Geo-technical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China,2.Changjiang Survey Planning Design and Research Co.,Ltd,Wuhan 430010,China) |
| |
| Abstract: | Pressure plate apparatus are used to study the influenceof two different compaction conditions on soil water characteristic curve of unsaturated remolded clay.The same dry density can correspond to different initial moisture contents in the compaction curves which are used to test the soil water characteristic curves.We can also get different types of dry density by changing the times of compaction when the compaction water content is the optimum moisture content on the initial conditions.Van Genuchten mode... |
| |
| Keywords: | remolded unsaturated clay soil water characteristic curve compaction dry density compaction water content |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
