降雨条件下考虑裂隙土孔隙双峰特性对非饱和土边坡渗流场的影响

doi:10.13722/j.cnki.jrme.2014.1263

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Abstract Based on equivalent continuum media model，the fractured soil located on the slope surface can be regarded as dual-porosity media，including the crack network and the pores of soil matrix，and the degree of fissure and the average fissure width as the introducing variables were taken. According to the capillary theory and the pore-size distribution，an effective method was summarized which can evaluate equivalent bi-modal unsaturated soil property functions for fractured soil. Then this method was applied to analyze an engineering practice on how the crack network affects the seepage field under rainfall infiltration condition. The results show that the crack network provides a priority channel for rainfall infiltration，and the perched water table is formed within the slope typically 1–2 m deep.

Key words： slope engineering rainfall infiltration fractured soil equivalent continuum model bi-modal soil-water characteristic curve

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	Articles by authors
	DOU Hongqiang1
	2
	HAN Tongchun1
	GONG Xiaonan1

Cite this article:

DOU Hongqiang1,2,HAN Tongchun1, et al. EFFECTS OF BI-MODAL CHARACTERISTICS OF FRACTURED SOIL PORE ON SEEPAGE FIELD OF UNSATURATED SOIL SLOPE[J]. , 2015, 34(S2): 4373-4380.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1263 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4373

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