Advanced Landfill Liner Systems

- Introduction - List of projects Research overview - Mechanical loading on earthen liners,damage due to subsidence - Water balance, the risk of desiccation in earthen liners - Contaminant transport, fundamentals and minimisation - Physical, chemical and biochemical influences on mineral liner materials - Construction techniques, quality management - Cut-offs walls - Safety and system amalysis - Geotextile protective layer system for geomembranes - Leachate drainage systems - Conclusinons and outlook Project reports - Development of a safety concept for landfill liner systems - Influence of mechanical loading on the performance of mineral landfill liners - Investigation of limiting values of deformability for mineral landfill liners by simulation of deformations in 1:1 scale tests - Construction tchniques in the construcion of composite landfill liners - Development of proposals for liner structures - theoretical and experimental investigation - Redox-dependent mineralogical and chemical changes in clayey landfill basal liners and their soil mechanical effects - Maintenance of the functioning of landfill drainage systems - Self-healing behaviour with regard to permeability of mineral sealing materials in disturbed landfill liners/liner systems - Long-term behaviour of earthen layers in landfill basal liners, moisture balance under thermal effects - Thermal effects on the barrier efficiency of composite liners - test field measurements - Non-isothermal water and vapour movement below landfills: laboratory experiments on the computer simulations of desiccation in mineral liners - Experimental and numerical studies of contaminant transport through mineral liners and resulting improvements in liner materials - Investigation of the feasibility of mining techniques for the subsequent lining of existing landfills - Hydraulic control mechanisms for landfill liner systems - Geomembranes under punctiform loads - Investigation into the long-term integrity of protective materials for geomembranes in landfill basal liners - Practice-oriented investigation to improve geotextile protective layer system for geomembranes with regard to their long-term protective efficacy - Investigations into the influence of the drainage aperture in plastic drainage pipes to optimise their long-term stability under landfill conditions - Design of capillary barriers for capping of landfillls and contaminated sites - Effects of overburden pressure and degree of drainage on the soil-water characteristics of earthen liners - Stress-strain behaviour of high-density slurry materials for groundwater protection cut-off walls around landfills and contaminated land, development of practice oriented test methods and assessment criteria - Optimising processing techniques for mineral landfill liner construction - Permeability and stress-strain behaviour fo fibre-reinforced soils for landfill liner systems - Investigations into the frost susceptibility of mineral landfill liners, problems affecting stability and precautions to be taken - Influence of filter cake growth and solid matter shift on the quality, feasibility and cost of slurry trence cut-off walls - Innovative construction materials for waste containment barriers: biochemical durability and contaminant transport - Designing a method of total area leakage monitoring for landfill liners - Appendix