Field Studies of Liner Installation Methods at Landfills and Surface Impoundments

摘要

This study investigates procedures for subgrade preparation and liner placement during the construction of lined surface impoundments and landfills. Lining materials studied include admixes, soils and clays, sprayed-on membranes, and polymeric membranes. Objectives of the study were to identify methods and equipment used for subgrade preparation and liner installation, and to compare industry recommended procedures with actual practice. The study also identifies special problems that can be avoided by following proper placement procedures. Emphasis is given to polymeric membrane liners because most liners currently being installed are of that type.