边坡电渗模型试验及能量分析法数值模拟

›› 2008, Vol. 29 ›› Issue (9): 2409-2414.

边坡电渗模型试验及能量分析法数值模拟

庄艳峰^1,2，王钊³，陈轮^1,2

1. 清华大学水利水电工程系，北京 100084; 2. 清华大学水沙科学与水利水电工程国家重点实验室, 北京 100084； 3. 武汉大学土木建筑工程学院，武汉 430072

收稿日期:2006-12-23 出版日期:2008-09-10 发布日期:2013-08-03
作者简介:庄艳峰，男，1978年生，博士后，主要从事土工合成材料和软土固结的科研工作
基金资助:
非饱和土坡变形机制和FRP螺旋锚护坡技术的研究（No. 50279036）；中国博士后科学基金（No. 2005038041）

Model test of slope reinforcement through electro-osmosis and its numerical simulation based on energy analysis method

ZHUANG Yan-feng^1,2, WANG Zhao³, CHEN Lun^1,2

1. Department of Hydraulic and Hydropower Engineering, Tsinghua University, Beijing 100084, China; 2. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; 3. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China

Received:2006-12-23 Online:2008-09-10 Published:2013-08-03

摘要/Abstract

摘要： 采用导电塑料制成的电动土工合成材料(EKG)进行了15.5 d的边坡电渗加固试验，测定了电渗之后土体等含水率分布曲线。试验结果表明，电渗加固效果是随时间从阳极到阴极逐渐扩展的，因此，越靠近阳极接入点的土体加固效果越好，越靠近阴极末端的土体加固效果越差。提出了电渗能量分析法，该方法仅要求黏性土体在排水固结开始的初始时刻是处于饱和状态，而在排水固结进行的过程中土体可以是饱和的，也可以是非饱和的。提出了基于能量分析法的电渗过程数值模拟方法，并对试验过程进行了数值模拟，模拟结果与实测结果能够较为吻合。

关键词: 电动土工合成材料, 电渗, 边坡加固, 能量分析法, 非饱和土

Abstract: Model test of slope reinforcement through electro-osmosis is conducted; the electro-kinetic geosynthetics (EKG) was adopted as electrodes in the test. Isolines of water content of the soil after 15.5 days of electro-osmosis were tested. Test result shows that electro-osmotic consolidated zone extended from anode to cathode gradually. Soil around EKG anode near the wire holder of electrode positive had the strongest effect of consolidation; on the contrary, soil around EKG cathode far away from the wire holder of electrode negative had the weakest effect of consolidation. Energy analysis method for electro-osmosis is presented. This method is applicable for both saturated and unsaturated soils during the drainage consolidation process, if only the soil is saturated at the beginning of consolidation process. Numerical simulation method for electro-osmosis based on energy analysis method is presented. Numerical simulation result shows good accordance with the tested result.

Key words: electro-kinetic geosynthetics, electro-osmosis, slope reinforcement, energy analysis method, unsaturated soil

中图分类号:

TU411

庄艳峰，王钊，陈轮 . 边坡电渗模型试验及能量分析法数值模拟[J]. , 2008, 29(9): 2409-2414.

ZHUANG Yan-feng , WANG Zhao , CHEN Lun . Model test of slope reinforcement through electro-osmosis and its numerical simulation based on energy analysis method[J]. , 2008, 29(9): 2409-2414.

参考文献

相关文章 15

[1]	周凤玺, 高国耀, . 非饱和土中热−湿−盐耦合作用的稳态分析[J]. 岩土力学, 2019, 40(6): 2050-2058.
[2]	陶高梁, 吴小康, 甘世朝, 肖衡林, 马强, 罗晨晨, . 不同初始孔隙比下非饱和黏土渗透性试验研究及模型预测[J]. 岩土力学, 2019, 40(5): 1761-1770.
[3]	方瑾瑾, 冯以鑫, 赵伟龙, 王立平, 余永强, . 真三轴条件下原状黄土的非线性本构模型[J]. 岩土力学, 2019, 40(2): 517-528.
[4]	陈正汉, 郭楠、. 非饱和土与特殊土力学及工程应用研究的新进展[J]. 岩土力学, 2019, 40(1): 1-54.
[5]	张玉芳，袁坤,. 双锚固段新型锚索锚固性能研究及工程应用[J]. , 2018, 39(S1): 461-468.
[6]	段晓梦，曾立峰, . 非饱和土的承载结构与岩土广义结构性[J]. , 2018, 39(9): 3103-3112.
[7]	周昌，胡新丽，徐楚，王强，徐迎. 基于电磁驱动的滑坡模型水分迁移理论及试验研究[J]. , 2018, 39(9): 3347-3354.
[8]	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.
[9]	徐筱，赵成刚，蔡国庆，. 区分毛细和吸附作用的非饱和土抗剪强度模型[J]. , 2018, 39(6): 2059-2064.
[10]	周亚东，邓安，鹿群, . 非饱和土一维大变形固结模型[J]. , 2018, 39(5): 1675-1682.
[11]	方瑾瑾，冯以鑫，朱昌星，. 真三轴条件下Q3原状黄土的力学特性[J]. , 2018, 39(5): 1699-1708.
[12]	张沛然，黄雪峰，扈胜霞，杨校辉，. 非饱和填土侧限压缩变形特性试验研究及应用初探[J]. , 2018, 39(2): 437-444.
[13]	张明礼，温智，董建华，王得楷，侯彦东，. 多年冻土活动层浅层包气带水-汽-热耦合运移规律[J]. , 2018, 39(2): 561-570.
[14]	饶登宇, 白冰, 陈佩佩, . 基于SPH方法的非饱和多孔介质相变耦合研究[J]. 岩土力学, 2018, 39(12): 4527-4536.
[15]	许韬，白冰. 考虑物理性质参数变化的膨润土缓冲材料水-热耦合SPH数值解[J]. , 2018, 39(10): 3853-3862.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed