粘土颗粒等效孔径的算法研究  

Research on the algorithm of equivalent aperture of clay particles

作　　者：耿大新[1] 王迎迎[1] 李宇晗[2] 

机构地区：[1]华东交通大学土木建筑学院岩土工程研究所,江西南昌330013 [2]南京水利科学研究院岩土工程研究所,江苏南京210029

出　　处：《西安理工大学学报》2016年第1期91-95,共5页Journal of Xi'an University of Technology

基　　金：江西省自然科学基金资助项目(20142BAB206002)

摘　　要：非饱和土中随机复杂的孔隙特征,对土体的工程性质产生重要的影响。为研究土体微观特性,以不同黏粒含量的江西重塑红粘土为研究对象,进行土-水特征实验和土样一维毛细上升实验。研究得到土样孔隙分布情况,提出粘土颗粒等效孔径的算法公式,给出增量步取值方式并详细介绍了算法过程;验证了等效孔径公式的合理性,实现了微观结构的定量化;同时为最大毛细上升高度的计算提供了一种有效的方法。The characteristics of randomicity and complexity about pores have a significant influence on the engineering properties of unsaturated soil. In order to analyze soil from microcosm,remolded red clay in Jiangxi Province with different clay contents are taken as research objects. The experiment on soil-water characteristic and experiment on one-dimensional capillary are conducted. The distribution of pores is obtained,and the algorithm of equivalent aperture of clay particles is given. Moreover,the method of incremental step and detailed algorithm progress are provided. The rationality of the formula is confirmed,a realization of the quantification of micro-structure. Meanwhile an effective method is provided for the calculation of the maximum height of capillary rise.

关 键 词：非饱和土 等效孔径 毛细上升 

分 类 号：TU4[建筑科学—土工工程]