膨胀土判别与分类的Fisher判别分析方法

›› 2007, Vol. 28 ›› Issue (3): 499-504.

膨胀土判别与分类的Fisher判别分析方法

余颂^{1, 2}，陈善雄^{1, 3}，余飞¹，许锡昌¹

1.中国科学院武汉岩土力学研究所，武汉 430071；2.中铁大桥勘测设计院有限公司，武汉 430050； 3.华中科技大学土木工程与力学学院，武汉 430074

收稿日期:2005-12-12 出版日期:2007-03-10 发布日期:2013-08-28
作者简介:余颂，男，1981年生，硕士，主要从事非饱和土工程性质及处治方法方面的研究。
基金资助:
安徽省交通厅重点科研项目

Fisher’s discriminant analysis method for identification and classification of expansive soil

YU Song^{1, 2}, CHEN Shan-xiong^{1, 3}, YU Fei¹, XU Xi-chang¹

1.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2.China Zhongtie Major Bridge Reconnaissance and Design Institute Co., Ltd; 3. College1 of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2005-12-12 Online:2007-03-10 Published:2013-08-28

摘要/Abstract

摘要： 介绍了数理统计中常用的判别分析方法——Fisher判别分析法，结合合（肥）－六（安）－叶（集）高速公路工程，利用SPSS软件对沿线采集土样进行了Fisher判别分析，得出了适合该地区膨胀土判别与分类的判别方程。分析表明： (1)利用Fisher判别分析法仅需几项基本物理性质指标，参数的试验操作大众化、规范化，试验条件明确、设备简单、周期短。在统计意义的基础上可以对膨胀土正确分类；(2)判别函数中，塑性指数的系数最大，说明判别函数对塑性指数值敏感，塑性指数能较好反映土的膨胀潜势；(3)利用SPSS软件进行判别分析，简易方便，分类效率高，对膨胀潜势的划分结果统计意义明显，能够为膨胀土的分类提供依据。对该判别方程进行了检验，发现其适用性好，判别分析方法在膨胀土判别与分类中有较好的应用前景。

关键词: 膨胀土, SPSS, Fisher判别分析, 判别与分类

Abstract: A usual discriminant analysis method-Fisher’s discriminant analysis is introduced. Based on Hefei-Liu’an-Yeji Expressway Project, sampling soil’s discriminant analysis of swelling potential ultilizing the software of SPSS is conducted, discriminant equation suiting for the district is obtained; and several conclusions are drawn as follows:(1) Only several basic physical indices are acquired in the analysis, the operation of which is popularization and standardization. Lots of advantages such as easy test condition, simple facility and short periodic time can be obtained and a correct classification can be done on the basis of statistics. (2) The value of coefficient of plastic index is maximum, which means that discriminant equation is sensitive to plastic index and that plastic index can reflect swelling potential to a well extent. (3) It is easy and efficient to do discriminant analysis making use of SPSS, statistic significance of classifying is explicit and it can provide grounds for the discriminant of expansive soil. Tests for the equation are carried out and from which we can see that it has good prospect for the identification and classification of expansive soil.

Key words: expansive soil, SPSS, Fisher’s discriminant analysis, identification and classification

中图分类号:

TU 443

余颂，陈善雄，余飞，许锡昌. 膨胀土判别与分类的Fisher判别分析方法[J]. , 2007, 28(3): 499-504.

YU Song, CHEN Shan-xiong, YU Fei, XU Xi-chang. Fisher’s discriminant analysis method for identification and classification of expansive soil[J]. , 2007, 28(3): 499-504.

参考文献

相关文章 15

[1]	李新明, 孔令伟, 郭爱国, . 考虑卸荷速率的K0固结膨胀土应力-应变行为[J]. 岩土力学, 2019, 40(4): 1299-1306.
[2]	郑俊杰, 吕思祺, 曹文昭, 景丹, . 高填方膨胀土作用下刚柔复合桩基挡墙结构数值模拟[J]. 岩土力学, 2019, 40(1): 395-402.
[3]	庄心善, 王俊翔, 王康, 李凯, 胡智. 风化砂改良膨胀土的动力特性研究[J]. 岩土力学, 2018, 39(S2): 149-156.
[4]	李国维, 施赛杰, 侯宇宙, 吴建涛, 李峰, 吴少甫, . 引江济淮试验工程非膨胀土开发技术实验研究[J]. 岩土力学, 2018, 39(S2): 302-314.
[5]	胡东旭，李贤，周超云，薛乐，刘洪伏，汪时机. 膨胀土干湿循环胀缩裂隙的定量分析[J]. , 2018, 39(S1): 318-324.
[6]	杨和平，唐咸远，王兴正，肖杰，倪啸，. 有荷干湿循环条件下不同膨胀土抗剪强度基本特性[J]. , 2018, 39(7): 2311-2317.
[7]	张春晓，肖宏彬，包嘉邈，尹亚虎，尹铎霖. 膨胀土应力松弛的分数阶模型[J]. , 2018, 39(5): 1747-1752.
[8]	毛新，汪时机, 程明书，陈正汉，王晓琪，. 膨胀土初始破损与湿干交替耦合作用下的力学行为[J]. , 2018, 39(2): 571-579.
[9]	姚传芹，韦昌富，马田田，陈合龙，陈火东，. 孔隙溶液对膨胀土力学性质影响[J]. , 2017, 38(S2): 116-122.
[10]	鲜少华，许英姿，姚海林，卢正，李志勇，董城,. 锚固加强植被系统约束膨胀土变形模型试验研究[J]. , 2017, 38(S1): 158-166.
[11]	池泽成，陈善雄，周哲，戴张俊，宋瑞军, . 合肥重塑膨胀土三向膨胀力试验研究[J]. , 2017, 38(S1): 381-386.
[12]	吴珺华，杨松，. 干湿循环下膨胀土基质吸力测定及其对抗剪强度影响试验研究[J]. , 2017, 38(3): 678-684.
[13]	邓友生，吴鹏，赵明华，段邦政，. 基于最优含水率的聚丙烯纤维增强膨胀土强度研究[J]. , 2017, 38(2): 349-353.
[14]	吴庆华，张家发，崔皓东，朱国胜，刘习银,. 细/粗粒二元结构边坡的排水防渗效果试验研究[J]. , 2017, 38(2): 392-399.
[15]	李晶晶，孔令伟，穆坤, . 膨胀土原位孔内剪切试验与强度响应特征[J]. , 2017, 38(2): 453-461.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed