豫东黄泛区粉砂土毛细水上升研究

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摘要 Numerical simulations and laboratory tests on soil samples with compaction degrees of 94%, 96%, and 98% are carried out to study the laws of capillary water rising and control techniques. The silty soil samples are obtained from the Yellow River flooded area of eastern Henan. The relation formulas between capillary water rising height and time are obtained through fitting. Results show that (1) the rising height gradually stabilized with the passage of time, reached about 130 cm on the 10th day, and eventually arrived at a maximum height of 285 cm; (2) the rising speed of capillary water was inversely proportional to the degree of compaction, especially when reaching the minimum rising height and speed with a compaction degree of 98%; and (3) the graded crushed stone, cement stabilized soil, and fiber cement stabilized soil effectively eliminated the rising of capillary water. Thus, properly increasing the compaction degree of the subgrade and adding a blocking layer of capillary water prevent the capillary water from rising, which improves the water stability of the subgrade.

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	袁玉卿
	赵丽敏
	李伟
	曹容川

关键词 ： road engineering, subgrade material, capillary water rising experiment, silty soil, numerical simulation, subgrade, cut off, Yellow River flooded area

Abstract：Numerical simulations and laboratory tests on soil samples with compaction degrees of 94%, 96%, and 98% are carried out to study the laws of capillary water rising and control techniques. The silty soil samples are obtained from the Yellow River flooded area of eastern Henan. The relation formulas between capillary water rising height and time are obtained through fitting. Results show that (1) the rising height gradually stabilized with the passage of time, reached about 130 cm on the 10th day, and eventually arrived at a maximum height of 285 cm; (2) the rising speed of capillary water was inversely proportional to the degree of compaction, especially when reaching the minimum rising height and speed with a compaction degree of 98%; and (3) the graded crushed stone, cement stabilized soil, and fiber cement stabilized soil effectively eliminated the rising of capillary water. Thus, properly increasing the compaction degree of the subgrade and adding a blocking layer of capillary water prevent the capillary water from rising, which improves the water stability of the subgrade.

Key words： road engineering subgrade material capillary water rising experiment silty soil numerical simulation subgrade cut off Yellow River flooded area

收稿日期: 2016-04-26

基金资助:Supported by the Science and Technology Development Project of Henan Province (No.162102210026)

通讯作者: YUAN Yu-qing,E-mail:yroad@126.com E-mail: yroad@126.com

引用本文:

袁玉卿, 赵丽敏, 李伟, 曹容川. 豫东黄泛区粉砂土毛细水上升研究[J]. Journal of Highway and Transportation Research and Development, 2016, 10(4): 40-46.
YUAN Yu-qing, ZHAO Li-min, LI Wei, CAO Rong-chuan. Research on Silty Soil Capillary Water Rising in Yellow River Flooded Area of Eastern Henan. Journal of Highway and Transportation Research and Development, 2016, 10(4): 40-46.

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[1] XIAO Jun-hua, LIU Jian-kun, PENG Li-yun, et al. Effects of Compactness and Water Yellow-River Alluvial Silt Content on Its Mechanical Behaviors[J]. Rock and Soil Mechanics, 2008,30(2):409-414. (in Chinese)
[2] SONG Xiu-guang, ZHANG Yu-hong, ZHANG Hai-zhong, et al. Analysis on Pavement Structure Performance Influenced by Strength Degradation of Silt Subgrade in Yellow River Inundated Area[J]. Journal of Highway and Transportation Research and Development, 2010, 27(5):30-35. (in Chinese)
[3] GUO Wei-wei, YANG Qun, ZHANG Tao. Detection and Evaluation of Road Diseases in High Underground Water Level Area[J]. Shanghai Highways, 2012, 31(2):11-14. (in Chinese)
[4] QUE Yun, YAO Xiao-qin. Research on Capillary Characteristics of Granite Residual Soil Embankment with the Shallow Water Table[J]. Journal of Fuzhou University:Natural Science Edition, 2011,39(5):754-759. (in Chinese)
[5] CHEN Yi-min, ZHANG Xi-fa, ZHANG Dong-qing, et al. An Integrated Experimental Study of Harmful Rising Height of Capillary Water of Highway Subgrade in Seasonally Frozen Ground Regions[J]. Journal of Glaciology and Geocryology, 2008, 30(4):641-645. (in Chinese)
[6] DONG Bin, ZHANG Xi-fa, LI Xin, et al. Comprehensive Tests on Rising Height of Capillary Water[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10):1569-1574. (in Chinese)
[7] YU Jiang-hong. Experimental Research on Strength and Deformation of Silty Soil Subgrade under Capillary Action[D]. Urumqi:Xinjiang University, 2011. (in Chinese)
[8] DU Hong-pu, LI Min, QI Cheng-ying. Numerical Simulation and Experimental Research of 1D Capillary Suction in Washed Sand Column[J]. Journal of Highway and Transportation Research and Development, 2014,31(6):34-40. (in Chinese)
[9] ZHAO Ming-hua, LIU Xiao-ping, CHEN An. Analysis of Capillary Effect in Unsaturated Roadbed[J]. Journal of Highway and Transportation Research and Development, 2008, 25(8):26-30. (in Chinese)
[10] MAO Xue-song, HOU Zhong-jie, KONG Ling-kun. Experimental Study on Moisture Migration of Wind-blown Sand[J]. Journal of Hydraulic Engineering, 2010, 55(2):142-147. (in Chinese)
[11] FU Qiang. Research on Vapor Transport Characteristics and Optimal Design of Drainage in Red Clay Subgrade[D]. Changsha:Changsha University of Science and Technology, 2010. (in Chinese)
[12] WANG Sheng-ping, LI Tao. Analysis of Capillary Effect of Unsaturated Soil Subgrade and Its Influence Factor[J]. Highway, 2012, 57(6):124-127. (in Chinese)
[13] YANG Ming, YU Fei. Capillary Water Upward Law and Treatment Technique of Expansive Soil Subgrade[J]. China Journal of Highway and Transport, 2009, 22(3):26-30. (in Chinese)
[14] LIU Jie, YAO Hai-lin, HU Meng-ling, et al. Study of Moisture Dynamic Response and Underground Drainage Test of Subgrade Model under Water Level Fluctuation[J]. Rock and Soil Mechanics, 2012, 33(10):2917-2922. (in Chinese)
[15] XU Jia-ren, CHEN Jia-ju. Road Engineering[M]. Shanghai:Tongji University Press, 1995. (in Chinese)
[16] RAN Wu-ping, WANG Sheng-jie, GAO Ming, et al. Analysis on Capillary Water Migration Factors within Low Liquid Limit Silty Soil in Urumqi Region[J].Highway, 2012, 57(9):14-18. (in Chinese)