| 重塑Q2黄土微观结构研究 |
| |
| 引用本文： | 方祥位,申春妮,李春海,陈正汉.重塑Q2黄土微观结构研究[J].地下空间与工程学报,2014,10(6):1231-1236. |
| |
| 作者姓名： | 方祥位 申春妮 李春海 陈正汉 |
| |
| 作者单位： | 1.后勤工程学院土木工程系 岩土力学与地质环境保护重庆市重点实验室,重庆 401311;2. 重庆科技学院建筑工程学院,重庆 401331 |
| |
| 基金项目： | 国家自然科学基金资助项目(11272354,51479208);后勤工程学院学术创新项目(YZ11-42201);国家科技支撑计划项目(2012BAK05B00) |
| |
| 摘 要： | 对陕西蒲城电厂不同干密度试样的重塑Q2黄土微观结构进行对比测试,研究了重塑Q2黄土的微观结构特征。微观结构定性定量分析表明:随干密度增大,重塑Q2黄土孔隙的大小明显变小,而数量明显增多;微观结构定量参数随干密度的变化呈现较好的线性关系,随干密度增大,Q2黄土的灰度熵、欧拉数和孔隙的面积比例、圆形度、定向度、分布分维减小;而颗粒的面积比例、圆形度、定向度、分布分维将增大。相对于干密度相同的原状Q2黄土,重塑Q2黄土孔隙数目增多,颗粒和孔隙的圆形度增大。
|
| 关 键 词： | 重塑Q2黄土 干密度 微观结构 定量研究 |
| 收稿时间： | 2014-08-19 |
Research on Microstructure of Remolded Q2 Loess |
| |
| Fang Xiangwei,Shen Chunni,Li Chunhai,Chen Zhenghan.Research on Microstructure of Remolded Q2 Loess[J].Chinese Journal of Underground Space and Engineering,2014,10(6):1231-1236. |
| |
| Authors: | Fang Xiangwei Shen Chunni Li Chunhai Chen Zhenghan |
| |
| Affiliation: | 1. Department of Civil Engineering, Chongqing Key Laboratory of Geomechanics & Geoenvironmental Protection, Logistical Engineering University, Chongqing 401311, China;2. Department of Architecture and Civil Engineering, Chongqing University of Science and Technology, Chongqing 401331, China |
| |
| Abstract: | Comparative tests were carried out on microstructure of remolded Q2 loess at Pucheng power plant, Shaanxi province. Both qualitative and quantitative analysis of the microstructure of remolded Q2 loess showed a significant decrease in pore size and an increase in number of pore with the increase of dry density; As the dry density increased, the quantitative parameter of the microstructure had a linear change: the Gray entropy, Euler value, area proportion, distribution fractal dimension and orientation of the pore decreased, while the area proportion, distribution fractal dimension and orientation of the particle increased. Compared with the undisturbed Q2 loess of the same dry density, there would be an increase in number of pore and roundness of pore and particle of remolded Q2 loess. |
| |
| Keywords: | remolded Q2 loess dry density microstructure quantitative analysis |
|
| 点击此处可从《地下空间与工程学报》浏览原始摘要信息 |
|
点击此处可从《地下空间与工程学报》下载全文 |
|
