A prediction model for the gas permeability of geomaterials
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Published:2021-12-01
Issue:8
Volume:8
Page:517-528
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ISSN:2051-803X
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Container-title:Environmental Geotechnics
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language:en
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Short-container-title:Environmental Geotechnics
Author:
Surya Sathee Surendran1,
Arnepalli Dali Naidu1ORCID
Affiliation:
1. Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India
Abstract
Geomaterials involved in deep geological repositories, geosequestration of greenhouse gases, oil and gas exploration and so on are subjected to moderate temperatures in response to the natural geothermal gradient, as well as an imposed thermal flux. In such instances, the influence of temperature on the gas permeability characteristics of geomaterials needs to be evaluated in view of assessing their long-term performance. The present study describes a simplified gas permeability apparatus developed for evaluating the gas permeability characteristics of geomaterials over a range of compaction states and temperatures, based on the principle of pressure decay. Further, the study proposes a prediction model for estimating the gas permeability characteristics of a variety of geomaterials in terms of their soil–water characteristics, by considering the effect of temperature. The efficacy of the proposed model has been established by validating it using the experimental results of the present study, as well as those available in the literature.
Publisher
Thomas Telford Ltd.
Subject
Management, Monitoring, Policy and Law,Nature and Landscape Conservation,Geochemistry and Petrology,Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental Engineering
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1. Editorial;Environmental Geotechnics;2021-12