黄泛区粉土路基次生盐渍化临界高度研究

Abstract
Figure/Table
References (0)
Related Citation (15)

Abstract To study the critical height of secondary salinization of silty soil subgrade, this paper examines the salt migration law in the secondary salinization of the non-saline soil subgrade in the Yellow River impact plain area via laboratory and numerical analyses using COMSOL Multiphysics. The results show that (1) if the top of subgrade has not yet formed poly salt, then the internal roadbed will also not form poly salt. and it shows the trend of gradually decreasing from the bottom to the salt distribution in the subgrade; (2) the relationship among the weak internal saline soil formation of critical height, the groundwater mineralization degree, and the underground water level at the top of the subgrade can be used to establish an approximate correlation and regression formula for the Yellow River impact plain area for estimating the weak internal saline soil formation of critical height; and (3) the influence of the groundwater mineralization degree on the secondary salinization of silty soil subgrade in the Yellow River impact plain area is significantly higher than those of the buried depth of groundwater and the filling height of subgrade.

Key words： road engineering secondary salinization numerical simulation critical salinity accumulation height regression analysis

Received: 24 February 2016

Corresponding Authors: YAO Zhan-yong E-mail: Zhanyong-y@sdu.edu.cn

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YAO Zhan-yong
	YU Jun-yan
	LIU Zhong-min
	ZHANG Shuo

Cite this article:

YAO Zhan-yong,YU Jun-yan,LIU Zhong-min, et al. Study on the Critical Height of Secondary Salinization of Silty Soil Subgrade in the Yellow River Impact Plain Area[J]. Journal of Highway and Transportation Research and Development, 2017, 11(4): 43-49.

URL:

http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/ OR http://manu27.magtech.com.cn/Jwk_gljtkj_en/EN/Y2017/V11/I4/43

[1] JTG D30-2015, Highway Subgrade Design Specifications[S]. (in Chinese)
[2] CHAI Shou-xi, YANG Bao-zhu, WANG Xiao-yan, et al. Characteristics of Saline Soil in the West Coast of Bohai Bay[J]. Rock and Soil Mechanics, 2008,29(5):1217-1221,1226.(in Chinese)
[3] LI Xin-ju, ZHANG Zhi-guo. Effects of Straw Mulching on Soil Water Evaporation and Soil Salinity[J]. Soil Bulletin, 1999,30(6):257-258.(in Chinese)
[4] BOUYOUCOS G J. Effect of Temperature on the Movement of Water Vapor and Capillary Moisture in Soils[J]. Journal Agriculture Research,1915,10(4):141-172.
[5] SONG Chang-chun, DENG Wei. The Characteristics of Groundwater in the West of Jilin and Its Relationship with Soil Salinization[J]. Geographical Science, 2000,20(3):246-250. (in Chinese)
[6] ZHANG Kun. Yellow River of Saline Soil Subgrade Water and Salt Migration and Partition[D]. Jinan:Shandong University, 2012.(in Chinese)
[7] ZHU Deng-yuan, GUAN Yan-hua. The Effect of Pore Water on the Stability of Silty Soil Subgrade[J]. Journal of Shandong University:Engineering Science, 2012,42(1):93-98. (in Chinese)
[8] LIU Guang-ming, YANG Jin-song, Li Dong-shun. The Law of Groundwater Evaporation and Its Relationship with Soil Salinity[J]. Journal of Soil Science, 2002,34(3):384-389. (in Chinese)
[9] JTG E40-2007, Test Procedures for Highway Geotechnical Engineering[S]. (in Chinese)
[10] HONG Jia-lian, FU Guo-bin, GUO Zao-nan, et al. Experimental Study on Water Surface Evaporation of Nansi Lake in Shandong[J]. Geographical Research, 1996,15(3):42-49. (in Chinese)
[11] WANG Ji-qiang. Application of ГГИ-500-50 Type Soil Evaporator in Dezhou,Shandong[J]. Hydrology, 1982(4):47-49.(in Chinese)
[12] ZHANG Hua,ZHOU Xiao-chao. An Inversion Method for Seepage Parameters of Unsaturated Soil Based on VG Model[J]. Journal of China Three Gorges University:Natural Science Edition, 2012,34(3):64-68.(in Chinese)
[13] WANG Zhi-tao, JIAO Xi-yun,HAN Hong-liang,et al. The Sensitivity Analysis of Soil Vertical One-dimensional Infiltration to VG Model Parameters[J]. Journal of Hohai University:Natural Science Edition, 2013,41(1):80-84.(in Chinese)
[14] FAN Yan-wei, DENG Yan, WANG Bo-lei. A Comparative Study on the Parameters of Soil Water Characteristic Curve VG Model Parameters[J]. People's the Yellow River, 2008,34(5):49-50. (in Chinese)
[15] PENG Jian-ping, SHAO Ai-jun. Based on the Matlab Method to Determine the Parameters of VG Model[J]. Hydrogeological Engineering Geology, 2006,32(6):25-28. (in Chinese)
[16] PENG Jian-ping, SHAO Ai-jun. Determination of Parameters of Soil Water Characteristic Curve with MatLab[J]. Journal of Soil Science,2007,39(3):433-438.
[17] TIAN Sheng-chang. Discussion on the Application of Excel Software in Nonlinear Regression Analysis[J]. Ningxia Agriculture and Forestry Science and Technology, 2011,52(11):29-31.