混合电源输出方式下的一维电渗试验研究

曾芳金; 符洪涛; 王军; 申矫健

doi:10.13204/j.gyjz201306017

混合电源输出方式下的一维电渗试验研究

doi: 10.13204/j.gyjz201306017

1.
1. 江西理工大学建筑与测绘学院,江西赣州341000;
2.
2. 温州大学建筑与土木工程学院,浙江温州325035

基金项目:

浙江省科技攻关项目(2010C33182)

详细信息

作者简介:
第一作者：曾芳金, 男, 1965年出生, 博士, 教授。电子信箱：fuhongtao2012@163.com

中图分类号: TU411
计量
- 文章访问数: 93
- HTML全文浏览量: 6
- PDF下载量: 68
- 被引次数: 4
出版历程
- 收稿日期: 2012-10-17
- 刊出日期: 2013-06-20

ONE-DIMENSIONAL ELECTROOSMOTIC EXPERIMENTAL RESEARCH UNDER THE WAY OF MIXED POWER OUTPUT

1.
1. Architecture and Surveying and Mapping College,Jiangxi University of Science and Technology,Ganzhou 341000,China;
2.
2. Architecture and Civil Engineering College,Wenzhou University,Wenzhou 325035,China

摘要

摘要: 利用改进的一维电渗固结试验装置对饱和软黏土进行电渗试验，通过监测电渗过程中的电流、电压、电势、排水量、电渗前后的含水率和抗剪强度，利用电渗透系数、电迁移系数、能耗系数来研究不同电源输出方式下的电渗排水状况。试验结果表明：相比于稳压输出方式，压流模式下的累积排水量更小且排水速率更慢，有效电势利用率变化幅度略小，电渗透系数和电迁移系数衰减得更快，含水率的总下降值和归一化抗剪强度略大；相比于稳流输出方式，流压模式下的累积排水量更大且排水速率更快，有效电势利用率变化幅度更小，电渗透系数和电迁移系数衰减得更慢，含水率总下降值和归一化抗剪强度更大。通过对不同电源输出方式下能耗系数递增速度的对比，得出流压模式下电渗工况更经济合理。
- 电渗 /
- 排水速率 /
- 电渗透系数 /
- 电迁移系数 /
- 能耗系数 /
- 含水率
Abstract: One-dimensional electroosmotic laboratory test was conducted in saturated soft clay under one dimensional electroosmotic consolidation test device, by monitoring current, voltage, potentials, the amount of drainage in the process of electroosmosis, and initial and final moisture content and shear strength, electrical permeability coefficient, electric migration coefficient, energy consumption coefficient were used to study electroosmotic drainage condition under the way of different power output.The test results showed that compared to stabilized output way of voltage, the cumulative amount of drainage was smaller and drainage rate was more slowly, change amplitude of effective potential utilization rate was slight, electric coefficient of permeability and electric migration coefficient decay were faster, and the overall decline value of the moisture content and normalized shear strength were slightly larger in the mode of the voltage and current.Compared to the mode of constant-current output, cumulative displacement was larger and drainage rate was faster, change amplitude of effective potential utilization rate was small, electric coefficient of permeability and electric migration coefficient attenuation were more slowly, and the overall decline value of the moisture content and normalized shear strength were larger in the mode of current and voltage.By contrasting to energy consumption coefficient under the different way of hybrid power output, drawing the electroosmosis condition in the mode of current and voltage was more economic and reasonable.
- electroosmosis /
- drainage-rate /
- electrical permeability coefficient /
- electromigration coefficient /
- energyconsumption coefficient /
- moisture content

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参考文献(20)

Casagrande L.Electro-Osmosis in Soils[J].Geotechnique,1949,1(3):159－177.

[2] Casagrande L.Electro-Osmosis and Related Phenomena[M].Harvard Soil Mechanics Series.No．66.Cambridge,?Massachusetts: MIT Press,1962.

[3] Churchill R V.Fourier Series and Boundary Value Problems[M].New York: McGraw-Hill Book Co.Inc,1941.

[4] Dawsom R F,McDonald R W.Some Effects of Electric Current on?the Consolidation Characteristics of a Soil[C]//Proceedings of the?International Conference on Soil Mechanics and Foundation?Engineering．1948,5:51－57.

[5] Micic S,Shang J Q,Lo K Y,et al.Electro-Kinetic Strengthening?of a Marine Sediment Using Intermittent Current[J].Canadian?Geotechnical Journal,2001,38(22):287－302.

[6] 王协群,邹维列．电渗排水法加固湖相软黏土的试验研究[J].武汉理工大学学报,2007,29(2):95－99.

[7] Glendinning S,Jones C J F P,Pugh R C .Reinforced Soil Using?Cohesive Fill and Electrokinetic Geosynthetics[J].International?Journal of Geomechanics,ASCE,2005,5(2):138－146.

[8] Glendinning S,Lamont-Black J,Jones C J F P.Treatment of?Sewage Sludge Using Elecro-Kinetic Geosynthetics[J].Journal of?Hazardous Materials,2006,139(3):491－499.

[9] 胡俞晨,王钊,庄艳峰．电动土工合成材料加固软土地基实验研究[J].岩土工程学报,2005,27(5):582－586.

[10] Jones C J F P.Recent Research and Applications in the Use of?Electro-Kinetic Geosynthetics [C]//Keynote Paper: The 4 th?European Geosynthetics Conference.Edinburgh,UK．2008.

[11] Zhuang Yanfeng,Wang Zhao.Interface Electric Resistance of?Electro-Osmotic Consolidation[J].Journal of Geotechnical and?Eoenvironmental Engineering,2007(12):1617－1621.

[12] Esrig M I.Pore Pressure,Consolidation and Electrokinetics [J].Journal of the Soil Mechanics and Foundation Division,ASCE,1968,94(SM4):899－921.

[13] Rittirong A,Shang J Q,Hassane M.Effects of Electrode?Configuration on Electro-Kinetic Stabilization for Caisson Anchors?in Calcareous Sand [J].Journal of Geotechnical and?Geoenvironmental Engineering,2008(3):352－365.

[14] Wan T Y,Mitchell J K.Electro-Osmotic Consolidation of Soil [J].Journal of the Geotechnical Engineering Division,1976,102:473－491.

[15] 房营光,徐敏,朱忠伟．碱渣土的真空－电渗联合排水固结特性试验研究[J].华南理工大学学报:自然科学版,2006,34(11):70－75.

[16] Esrig M I.Pore Pressure,Consolidation and Electro-Kinetics[J].Journal of the Soil Mechanics and Foundations Division,1968,94(4):899－922.

[17] Gray D H.Electrochemical Hardening of Clay Soil [J].Geotechnique,1970,20(1):81－93.

[18] 谭罗荣,孔令伟．特殊岩土工程土质学[M].北京:科学出版社,2006.

[19] 庞宽,刘斯宏,吴澎,等．电渗法加固软土地基基本参数室内试验研究[J].水运工程,2011,451(3):148－153.

[20] 王文．饱和土体电渗机理及基本理论研究[D].杭州:浙江大学,2004．

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