文章基本信息

标题：Pinhole test for identifying susceptibility of different horizons in loess-derived soils to piping erosion
本地全文：下载
作者：Maria Estela Nadal-Romero ; Els Verachtert ; Jean Poesen 等
期刊名称：Landform Analysis
印刷版ISSN：1429-799X
电子版ISSN：2081-5980
出版年度：2011
卷号：17
页码：131-134
出版社：Bogucki Wydawnictwo Naukowe
摘要：The pinhole test is an empirical test based on the qualitative evaluation of the dispersivity (colloidal erodibility) ofcompacted fined-grained soils. This study evaluates the pinhole test device for the quantitative assessment of the susceptibilityof soil horizons to piping. The experiments performed on different loess-derived soil horizons, with different hydraulichead and using distilled water show that the clay-enriched horizon (Bt horizon) is less susceptible to piping than thedecalcified (C1) and the calcareous horizon (C2). This study demonstrates that the pinhole test is suitable for assessing thesusceptibility of soil horizons to piping in a quantitative way.
关键词：pinhole test; subsurface erosion; hydraulic head; antecedent soil moisture content; water quality