Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations

doi:10.1155/2013/703251

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	Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations
	Jie, Liu; Yao, Hailin; Chen, Pan; Lu, Zheng; Luo, Xingwen
刊名	JOURNAL OF APPLIED MATHEMATICS
	2013
页码	-
ISSN号	1110-757X
DOI	10.1155/2013/703251
英文摘要	Groundwater is a main natural factor impacting the subgrade structure, and it plays a significant role in the stability of the subgrade. In this paper, the analytical solution of the subgrade moisture variations considering groundwater fluctuations is derived based on Richards' equation. Laboratory subgrade model is built, and three working cases are performed in the model to study the capillary action of groundwater at different water tables. Two types of antidrainage materials are employed in the subgrade model, and their anti-drainage effects are discussed. Moreover, numerical calculation is conducted on the basis of subgrade model, and the calculate results are compared with the experimental measurements. The study results are shown. The agreement between the numerical and the experimental results is good. Capillary action is obvious when the groundwater table is rising. As the groundwater table is falling, the moisture decreases in the position of the subgrade near the water table and has no variations in the subgrade where far above the table. The anti-drainage effect of the sand cushion is associated with its thickness and material properties. New waterproofing and drainage material can prevent groundwater entering the subgrade effectively, and its anti-drainage effect is good.
WOS研究方向	Mathematics
语种	英语
出版者	HINDAWI PUBLISHING CORPORATION
WOS记录号	WOS:000324439800001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3414]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Jie, Liu,Yao, Hailin,Chen, Pan,et al. Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations[J]. JOURNAL OF APPLIED MATHEMATICS,2013:-.
APA	Jie, Liu,Yao, Hailin,Chen, Pan,Lu, Zheng,&Luo, Xingwen.(2013).Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations.JOURNAL OF APPLIED MATHEMATICS,-.
MLA	Jie, Liu,et al."Theoretical Analysis and Experimental Study of Subgrade Moisture Variation and Underground Antidrainage Technique under Groundwater Fluctuations".JOURNAL OF APPLIED MATHEMATICS (2013):-.