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Intruded Concrete Plugs in a Deep Gold Mine: An Exercise in Quality Control, Assurance, and Performance Verification
Five horizontal concrete plugs were designed and constructed in a deep gold mine near Randfontein, South Africa. Intended to resist water heads of up to 1500m, they were up to 30m long and measured 4 by 4.5m in cross-section. Each plug was constructed in four separate, contiguous segments using the mortar intruded preplaced aggregate ("colcrete") process. They have been designed conservatively to provide a service life of at least 100 years. This paper focuses on the construction aspects, and in particular the very intense levels of QA/QC and performance verification which were considered appropriate to the project, given the potentially horrific consequences of failure to the mine labor.
Intruded Concrete Plugs in a Deep Gold Mine: An Exercise in Quality Control, Assurance, and Performance Verification
Five horizontal concrete plugs were designed and constructed in a deep gold mine near Randfontein, South Africa. Intended to resist water heads of up to 1500m, they were up to 30m long and measured 4 by 4.5m in cross-section. Each plug was constructed in four separate, contiguous segments using the mortar intruded preplaced aggregate ("colcrete") process. They have been designed conservatively to provide a service life of at least 100 years. This paper focuses on the construction aspects, and in particular the very intense levels of QA/QC and performance verification which were considered appropriate to the project, given the potentially horrific consequences of failure to the mine labor.
Intruded Concrete Plugs in a Deep Gold Mine: An Exercise in Quality Control, Assurance, and Performance Verification
Brawner, C. O. (Chuck) (author) / Bruce, Donald A. (author) / Littlejohn, G. Stuart (author)
Geo-Frontiers Congress 2005 ; 2005 ; Austin, Texas, United States
2005-10-09
Conference paper
Electronic Resource
English
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