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原文传递 Innovative Geotechnical Repair Techniques - Effectiveness of Electrokinetic Geosynthetics

题名：	Innovative Geotechnical Repair Techniques - Effectiveness of Electrokinetic Geosynthetics
责任者：	I M Nettleton, R Seddon and M G Winter
关键词：	not available
学科分类：	公路工程
摘要：	Work to evaluate the effectiveness of innovative geotechnical repair techniques for slopes has been commissioned by Highways England (HE). The techniques are the planting of live willow poles, Fibre Reinforced Soil (FRS) and Electrokinetic Geosynthetics (EKG). These techniques were used in place of conventional approaches in order to reduce the overall impact of various challenges including environmental constraints (habitat and visual), access and utility constraints, and to address the need to reduce the scale and/or cost of traffic management and traffic delays. This report presents an assessment of the effectiveness of EKG treatment to increase the stability of highway earthworks, and is one of a series for this project. The use of EKG treatment to aid slope stability has been widely written about and the associated benefits are often described as follows: • Electroosmotic active dewatering, leading to a reduction in water content, pore water pressures, consolidation and an increase in shear strength. • Physio-chemical changes in the soil, such as cementation, precipitation, ion exchange and flocculation, which can lead to increases in shear strength, stiffness and a reduction in plasticity. • Temporary active EKG drainage and permanent passive drainage provided by the EKG cathodes. • Soil nail reinforcement provided by the EKG anodes with an enhanced soil/nail bond.
出版机构：	Transport Research Laboratory
提交日期：	November 2018
总页数：	89
报告类型：	科技报告
资源类型：	科技（咨询、行业）报告
初始创建时间：	November 2018