Geomembranes – From design to handover, the lessons learnt

Mine waste facility liner and cover systems

Attila Marta

Red Earth Enginerring

Geomembrane liners (GMB) are being used more frequently for the storage or capping of mine waste due to stricter regulatory requirements relating to environmental protection.   The longevity of any liner system will be a function of environmental conditions, design (including materials selection), construction and condition monitoring during operations or closure.  Based on experience and case studies, this paper presents a review, from design to hand over, of the some of the smaller and often overlooked details that can have significant impacts on the performance of the GMB and the project overall.  The topics covered will include approaches to selecting and testing GMBs to ensure they are suitable.  Design considerations to aid installation and quality assurance during construction.  A review of procurement, including manufacturer quality testing and the need for third party testing to ensure you receive what was specified.  Construction quality control and assurance procedures, including non-destructive leak location survey methods, before hand over to the client.

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