击实膨胀土工程变形特征的试验研究

›› 2003, Vol. 24 ›› Issue (5): 826-830.

击实膨胀土工程变形特征的试验研究

李献民，王永和，杨果林，范臻辉

中南大学土木建筑学院，湖南长沙 410075

收稿日期:2002-05-20 出版日期:2003-10-10 发布日期:2014-08-19
作者简介:李献民，男，1971年生，中南大学博士生，从事岩土工程研究。
基金资助:
湖南省交通厅科技发展基金项目（No. 200006）

Test study on engineering deformation characteristics of compacted expansive soil

LI Xian-min, WANG Yong-he, YANG Guo-lin, FAN Zhen-hui

College of Civil Engineering and Architecture, Central South University, Changsha 410075, China

Received:2002-05-20 Online:2003-10-10 Published:2014-08-19

摘要/Abstract

摘要： 以湖南邵阳膨胀土为例，对3种击实膨胀土工程变形特性进行了试验研究。试验结果表明：膨胀土的起始含水率和起始干密度对其膨胀力和膨胀量大小的影响是主要的外部因素；根据膨胀力试验和膨胀量试验的试验数据，拟合出膨胀力曲线和膨胀量曲线的变化规律均为指数关系。同时，还研究了膨胀速度曲线、收缩特性曲线的特征及膨胀和收缩两个过程的相似关系。研究结果为膨胀土路堤的设计及膨胀土地基处理等膨胀土问题提供了重要的依据。

关键词: 击实膨胀土, 工程变形特性, 膨胀力和膨胀量, 含水率和干密度

Abstract: By a lot of laboratory tests of expansive soil, in the case of expansive soil in Shaoyang city of Hunan province, the engineering deformation characteristics of three kinds of expansive soils have been test studied. The test results indicate: the beginning water content and dried density of expansive soil are the main outside factors that influence the magnitude of their expansibility and swelling quantity; according to the data of expansibility tests and swelling quantity tests, the variational rule of both expansibility fitted curve and swelling quantity fitted curve is the same exponential relation. At the same time, the characteristic curve and the similar relation between the curve of swelling velocity and the curve of shrinkage tests have been studied. Therefore, the study results have provided the important basis for the design of embankment and treatment technique to the existing expansive soil foundation.

Key words: compacted expansive soil, engineering deformation characteristics, expansibility and swelling quantity, moisture content and dry density

中图分类号:

TU 443

李献民，王永和，杨果林，范臻辉. 击实膨胀土工程变形特征的试验研究[J]. , 2003, 24(5): 826-830.

LI Xian-min, WANG Yong-he, YANG Guo-lin, FAN Zhen-hui. Test study on engineering deformation characteristics of compacted expansive soil[J]. , 2003, 24(5): 826-830.

参考文献

相关文章 15

[1]	程星磊，王建华，王哲学，. 软黏土中吸力锚循环失稳过程的模型试验[J]. , 2018, 39(9): 3285-3293.
[2]	李宣, 孙德安，张俊然,. 吸力历史对非饱和粉土动力变形特性的影响[J]. , 2018, 39(8): 2829-2836.
[3]	曾志雄，孔令伟，李晶晶，李聚昭, . 干湿-冻融循环下延吉膨胀岩的力学特性及其应力-应变归一化[J]. , 2018, 39(8): 2895-2904.
[4]	李建民，滕延京. 基于载荷试验的土体回弹再压缩变形规律及计算方法[J]. , 2018, 39(S1): 113-121.
[5]	董金玉，王闯，周建军，杨继红，李严威，. 泡沫改良砂卵石土的试验研究[J]. , 2018, 39(S1): 140-148.
[6]	孙逸飞，沈扬，刘汉龙,. 粗粒土的分数阶应变率及其与分形维度的关系[J]. , 2018, 39(S1): 297-302.
[7]	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.
[8]	闫澍旺，李嘉，闫玥，陈浩，. 黏性土地基中竖向圆孔的极限稳定深度研究[J]. , 2018, 39(4): 1176-1181.
[9]	孙德安，张乾越，张龙，朱赞成，. 高庙子膨润土强度时效性试验研究[J]. , 2018, 39(4): 1191-1196.
[10]	杨明辉，冯超博，赵明华，罗宏. 考虑坡度效应的水平受荷桩应变楔计算方法[J]. , 2018, 39(4): 1271-1280.
[11]	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.
[12]	苗发盛，吴益平，谢媛华，李曜男，李麟玮. 水位升降条件下牵引式滑坡离心模型试验[J]. , 2018, 39(2): 605-613.
[13]	陈祖煜，黎康平，李旭，詹成明,. 重力式挡土墙抗滑稳定容许安全系数取值标准初探[J]. , 2018, 39(1): 1-10.
[14]	陈祥胜，李银平，尹洪武，葛鑫博，施锡林，杨春和, . 多夹层盐矿地下储气库气体渗漏评价方法[J]. , 2018, 39(1): 11-20.
[15]	朱勇，冯夏庭，周辉，张传庆，张铭强,. 抗剪强度分项系数的标准差反馈标定法[J]. , 2018, 39(1): 151-157.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed