Experimental Analysis of Hydraulic Conductivity for Saturated Granular Soils

作     者：Ahlinhan Marx Ferdinand Djenou B. Dorothée Adjovi Edmond Codjo Ahlinhan Marx Ferdinand;Djenou B. Dorothée;Adjovi Edmond Codjo

作者机构：Laboratory of Study and Test in Civil Engineering (L2EGC) National High School of Public Works (ENSTP) National University of Sciences Technologies Engineering and Mathematics (UNSTIM) Abomey Republic of Benin 

出 版 物：《Geomaterials》 (地质材料（英文）)

年 卷 期：2023年第13卷第3期

页      面：71-90页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Permeability Hydraulic Conductivity Tests Saturated Granular Soils Prediction Approaches 

摘      要：Hydraulic conductivity is the ability of a porous media to transfer water through its pore matrix. That is a key parameter for the design and analysis of soil fluid associated structures and issues. This paper presents the test results of the vertical hydraulic conductivity kv carried out on one poorly graded sand and three gap graded gravely sand. It was found that the vertical hydraulic conductivity of saturated soil depends on the grain size distribution curve, on the initial relative density of the soil. Compilation of these current test results and other test results published, shows that the common approaches predict well to some extent the vertical hydraulic conductivity kv for the poorly graded sand materials and underestimate the kv values for gap graded gravely sand materials. Therefore, new approaches are developed for the prediction of the vertical hydraulic conductivity in saturated poorly graded sand and gap graded gravely sand. The derived results from the new approaches lie in the range of the recommended values by (EAU 2012) and (NAVFAC DM 7 1974).