高吸力高温度下2种滤纸率定曲线及其应用

朱赞成; 孙德安; 田进

doi:10.11779/CJGE201406005

高吸力高温度下2种滤纸率定曲线及其应用 English Version

朱赞成^{1, 2},
孙德安¹,
田进²

1. 上海大学土木工程系,上海 200072; 2. 台州学院建筑工程学院,浙江台州 318000

基金项目: 国家自然科学基金项目（11272194）; 上海市教委科研创新项目（12ZZ093）

详细信息

作者简介:
朱赞成(1977- ),男,博士研究生,讲师,主要从事岩土工程等方面的教学和科研工作。E-mail: zancheng_77 @163.com。

中图分类号: TU443
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出版历程
- 收稿日期: 2013-12-08
- 发布日期: 2014-06-19

Calibration curves of two filter papers at high suction and temperature and their application

1. Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2. School of Civil Engineering and Architecture, Taizhou University, Taizhou 318000, China

摘要

摘要: 使用15种饱和盐溶液的蒸汽平衡法测试了Whatman No.42和国产双圈203两种滤纸分别在20,40,60,80下的总吸力与滤纸含水率关系,并给出其总吸力率定曲线方程。试验结果表明,2种滤纸的持水性均随着温度的升高而降低。还用2种滤纸分别在20,40,60,80下测定高庙子钙基膨润土在不同温度下的土水特征曲线,试验结果显示用2种滤纸测得的该膨润土土水特征曲线相近,高庙子钙基膨润土随着温度的升高其持水性下降,尤其是温度超过60时,其特征曲线下降更明显,而在高吸力阶段温度对持水性影响不大。
- 滤纸法 /
- 率定曲线 /
- 蒸汽平衡法 /
- 持水性 /
- 膨润土
Abstract: Buffer/backfill materials may experience temperature change in several circumstances, and thus it is necessary to study the hydro mechanical behaviour of soils at different temperatures. The filter paper method is an indirect way to conduct the suction measurement. The filter method can cover the full range of suction measurement, and it is inexpensive and relatively simple. The calibration curves for Whatman No. 42 and Double-circle No. 203 filter papers are investigated at room temperature by many researchers. However, the suction and temperature are both relatively low. This study presents the results of an experimental investigation of thermal effects on the calibration curves of the filter papers Whatman No. 42 and Double-circle No. 203 and the application of the curves to obtain the total suction of a compacted bentonite at different temperatures. The calibration curves between the suction and moisture content for the filter papers are determined at 20,40,60 and 80, respectively, by the vapor equilibrium technique using fifteen types of saturated salt solutions. The results show that the water-retention capacity of the filter paper decreases with the increasing temperature. The obtained calibration curves are used to determine the water-retention behaviour of GMZ Ca-bentonite, which is considered as a possible backfill material in the high level radioactive waste deep geological disposal project in China, at 20, 40, 60 and 80, respectively. It is found that the water-retention curves of the bentonite are both the same using the two kinds of filter papers, and they decrease clearly with temperature, especially when it is above 60. In addition, the water-retention capacity in the range of higher suction is slightly affected by temperatures.
- filter paper method /
- calibration curve /
- vapor equilibrium technique /
- water retention behaviour /
- bentonite

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参考文献(26)

[1]	TANG A M, CUI Y J. Controlling suction by vapor equilibrium technique at different temperatures, application to the determination of the water retention properties of MX80 clay[J]. Canadian Geotechnical Journal, 2005, 42(1): 287-296.
[2]	VILLAR M V, LLORET A. Dismantling of the first section of the FEBEX in situ test: THM laboratory tests on the bentonite blocks retrieved[J]. Physics and Chemistry of the Earth, 2007, 32: 716-729.
[3]	VILLAR M V, GÓMEZ-ESPINA R. Effect of temperature on the water retention capacity of FEBEX and MX-80 bentonites[C]// 1st European Conference on Unsaturated soils: Advances in Geo-engineering. London, 2008: 257-262.
[4]	YE W M, WAN M, CHEN B, et al. Effect of temperature on soil-water characteristics and hysteresis of compacted Gaomiaozi bentonite[J]. Journal of Central South University of Technology, 2009, 16: 821-826.
[5]	CHANDLER R J, GUTIERREZ C I. The filter-paper method of suction measurement[J]. Technical Notes, 1986: 265-267.
[6]	HOUSTON S L, HOUSTON W N, WANGER A M. Laboratory filter paper suction measurements[J]. Geotechnical Testing Journal, 1994, 17(2): 185-194.
[7]	LEONG E C, HE L, RAHARDJO H. Factors affecting the filter paper method for total and matric suction measurements[J]. Geotechnical Testing Journal, 2002, 25(3): 321-332.
[8]	LIOKS W J, LU N. Filter paper technique for measuring total suction[R]. Washington: Transportation Research Record, No.1876, 2002: 120-12.
[9]	HAGHIGHI A, MEDERO G, MARINHO F, et al. Temperature effects on suction measurement using the filter paper technique[J]. Geotechnical Testing Journal, 2012, 35(1): 83-90.
[10]	蒋刚, 王钊, 邱金营. 国产滤纸吸力-含水量关系率定曲线的研究[J]. 岩土力学, 2000, 21(1): 72-75. (JIANG Gang, WANG Zhao, QIU Jin-ying. Suction calibration curve of homemade filter paper[J]. Rock and Soil Mechanics, 2000, 21(6): 72-75. (in Chinese))
[11]	程金茹, 沈珍瑶, 李满喜. 滤纸吸力率定曲线的研究[J]. 岩土力学, 2002, 23(6): 800-802. (CHENG Jin-ru, SHEN Zhen-yao, LI Man-xi. Suction calibration for filter paper[J]. Rock and Soil Mechanics, 2002, 23(6): 800-802. (in Chinese))
[12]	王钊, 杨金鑫, 况娟娟, 等. 滤纸法在现场基质吸力量测中的应用[J]. 岩土工程学报, 2003, 25(4): 405-408. (WANG Zhao, YANG Jin-xin, KUANG Juan-juan, et al. Application of filter paper method in field measurement of matric suction[J]. Chinese Journal of Geotechnical Engineering, 2003, 25(4): 405-408. (in Chinese))
[13]	白福青, 刘斯宏, 袁骄. 滤纸总吸力吸湿曲线的率定试验[J]. 岩土力学, 2011, 32(8): 2336-2339. (BAI Fu-qing, LIU Si-hong, YUAN Jiao. Suction calibration for filter paper[J]. Rock and Soil Mechanics, 2011, 32(8): 2336-2339. (in Chinese))
[14]	BAI F Q, LIU S H. Measurement of the shear strength of an expansive soil by combining a filter paper method and direct shear tests[J]. Geotechnical Testing Journal, 2012, 35(3): 451-459.
[15]	FAWCETT R G, COLLIS-GEORGE N. A filter-paper method for determining the moisture characteristics of soil[J]. Australian Journal of Experimental Agriculture and Animal Husbandry, 1967, 7: 162-167.
[16]	HAMBLIN A P. Filter-paper method for routine measurement of field water potential[J]. Journal of Hydrology, 1981, 53: 355-360.
[17]	ASTM D5298—94 Standard test method for measurement of soil potential(suction) using filter paper[S]. 1992.
[18]	AGUS S C, SCHANZ T. Discussion of paper ‘free energy of water suction in filter papers’ by R Bulut and W K Wray[J]. Geotechnical Testing Journal, 2005, 28: 517-518.
[19]	MARINHO F A M, OLIVEIRA M. The filter paper method revisited[J]. Geotechnical Testing Journal, 2006, 29(3): 250-258.
[20]	DELAGE P, HOWAT M D, CUI Y J. The relationship between suction and swelling properties in a heavily compacted unsaturated clay[J]. Engineering Geology, 1998, 50(1/2): 31-48.
[21]	GREENSPAN L. Humidity fixed points of binary saturated aqueous solutions[J]. Journal of Research of the National Bureau of Standards, 1977, 81(1): 89-96.
[22]	WEXLER A. Vapor pressure equation for water in the range 0 to 100℃[J]. Journal of Research of the National Bureau of Standards, 1976, 80(5/6): 775-785.
[23]	ASTM E104—02 Standard practice for maintaining constant relative humidity by means of aqueous solutions[S]. ASTM International, 2012.
[24]	刘月妙, 温志坚. 用于高放射性废物深地质处置的粘土材料研究[J]. 矿物岩石, 2003, 23(4): 42-45. (LIU Yue-miao, WEN Zhi-jian. Study on clay-based materials for the repository of high level radioactive waste[J]. Journal Mineral Petrol, 2003, 23(4): 42-45. (in Chinese))
[25]	方雷, 孙德安, 孙文静. 高庙子钙基膨润土的膨胀特性[J]. 上海大学学报(自然科学版), 2013, 19(5): 508-512. (FANG Lei, SUN De-an, SUN Wen-jing. Swelling characteristics of Gaomiaozi Ca-bentonite[J]. Journal of Shanghai University (Natural Science), 2013, 19(5): 508-512. (in Chinese))
[26]	孙德安, 孟德林, 孙文静, 等. 两种膨润土的土-水特征曲线[J]. 岩土力学, 2011, 32(4): 973-978. (SUN De-an, MENG De-lin, SUN Wen-jing, et al. Soil-water characteristic curves of two bentonites[J]. Rock and Soil Mechanics, 2011, 32(4): 973-978. (in Chinese))

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高吸力高温度下2种滤纸率定曲线及其应用 English Version

作者简介: 朱赞成(1977- ),男,博士研究生,讲师,主要从事岩土工程等方面的教学和科研工作。E-mail: zancheng_77 @163.com。

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Calibration curves of two filter papers at high suction and temperature and their application

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作者简介:
朱赞成(1977- ),男,博士研究生,讲师,主要从事岩土工程等方面的教学和科研工作。E-mail: zancheng_77 @163.com。