Heating Pulse Tests under Constant Volume on Natural Boom clay

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Abstract

Boom clay formation is a potential natural host rock for geological disposal of High Level Nuclear Waste in Belgium. Heating pulse tests with controlled power supply (maximum temperature was limited to 85°C) and controlled hydraulic boundary conditions were performed under nearly constant volume conditions to study the impact of thermal loads on this clay formation. Selected test results on intact borehole samples retrieved in horizontal direction are presented and discussed. Attention is focused on the time evolution of temperature and pore water pressure changes along heating and cooling paths –i.e., pore pressure build-up during quasi-undrained heating and later dissipation at constant temperature–.

Details

Original languageEnglish
Title of host publicationInternational Symposium on Unsaturated Soil Mechanics and Deep Geological Nuclear Waste Disposal (UNSAT-WASTE 2009)
Place of PublicationShanghai, China
Pages136-141
Publication statusPublished - Dec 2009
EventInternational Symposium on Unsaturated Soil Mechanics and Deep Geological Disposal of Nuclear Waste Disposal - UNSAT-WASTE - jointly organised by " Institute of Rock and Soil mechanics, Chinese Academy of Science", "TongJi University" of China and “Ecole nationale des ponts et chaussées”, Shanghai, China
Duration: 24 Aug 200928 Aug 2009

Conference

ConferenceInternational Symposium on Unsaturated Soil Mechanics and Deep Geological Disposal of Nuclear Waste Disposal - UNSAT-WASTE
Country/TerritoryChina
CityShanghai
Period2009-08-242009-08-28

Keywords

  • Boom clay, heating pulse test, microstructure, water retention curve, thermal load, thermal conductivity, permeability, pressurisation coefficient, numerical simulation

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