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Landfills will remain a vital component of waste management strategy. Geotechnical consideration in landfill design is related to the effectiveness of waste containment while minimising potential migration of waste materials. Generally, geotechnical aspects are related to factors such as permeability, settlement and slope stability and structural strength of landfilll component such as impermeable base and side, leachate collection system, engineered soil barrier, proper underlying geology, and proper impermeable cover. However, the effectiveness of landfill is controlled by the geotechnical properties of these components particularly its permeability.
Focuses on actual, state-of-the-art design/construction procedures as opposed to a discussion of solid waste management issues and to general descriptions and/or conceptual designs. Provides an integrated package of analytical tools, design equations, and step-by-step construction procedures for all elements of a landfill, giving the reader a better sense of the necessary site investigation, planning, analysis, and organization that go into a landfill design and construction project.The characteristics of landfill containment envelopes and their design/construction are treated in detail. Physico-chemical and engineering properties of solid waste that are relevant and important to landfill design and construction are tabulated and described. Includes explanation of how to evaluate and assess potential problems that affect landfill performance such as sideslope stability, settlement, containment effectiveness, and erosion control. Discusses vertical landfill expansion; how leachate moves across a liner or barrier under both advection and diffusion; compares the containment effectiveness of different liner systems to the combined advective-diffusive transport of dissolved leachate solutes. Includes a detailed explanation with numerical examples and calculations of how to design a gas collection and piping system in a landfill—including the collection and handling of condensate in the gas. Detailed installation and inspection guidelines are provided for both earthen and geosynthetic liner/cover systems—comparing the relative advantages and limitations of each. For professional training courses in Geotechnical and Geoenvironmental Engineering.
Earth scientists and geotechnical engineers are increasingly challenged to solve environmental problems related to waste disposal facilities and cleanup of contaminated sites. The effort has given rise to a new discipline of specialists in the field of environmental geotechnology. To be effective, environmental geotechnologists must not only be armed with the traditional knowledge of fields such as geology and civil engineering, but also be knowledgeable of principles of hydrogeology, chemistry, and biological processes. In addition, the environmental geotechnologist must be completely up to date on the often complex cadre of local and national regulations, must comprehend the often complex legal issues and sometimes mind-boggling financial impli cations of a project, and must be able to communicate effectively with a host of other technical specialists, regulatory officials, attorneys, local land owners, journalists, and others. The field of environmental geo technology will no doubt continue to offer unique challenges. The purpose of this book is to summarize the current state of practice in the field of environmental geotechnology. Part One covers broadly applicable principles such as hydrogeology, geochemistry, and con taminant transport in soil and rock. Part Two describes in detail the underlying principles for design and construction of new waste disposal facilities. Part Three covers techniques for site remediation. Finally, Part Four addresses the methodologies for monitoring. The topics of 'waste disposal' and 'site remediation' are extra ordinarily broad.
These proceedings cover a range of issues of direct relevance to geotechnical engineers and associated disciplines working on landfill design, highlight new areas of research and practice, and provide a focus for future research and development.
The closing of landfills has become commonplace. In many instances these closed facilities are desirable building sites because of close proximity to urban areas. Much of the subsurface investigation for foundation design parameters in landfills is more difficult and more expensive than for conventional sites underlain by soil or rock. A subsurface investigation of one particular landfill site is presented and discussed. The results obtained guide the decision making process for both further investigation and foundation type selection. The purpose of the paper is to inform the practicing engineer of one approach to the evaluation of geotechnical considerations of a landfill site.
National Research Council Canada. Task Force on Waste Disposal
Author : National Research Council Canada. Task Force on Waste Disposal Publisher : National Research Council of Canada, Associate Committee on Geotechnical Research Page : 156 pages File Size : 43,91 MB Release : 1983 Category : Geology ISBN :