Hydraulic In situ Testing for Mining and Engineering Design: Packer Test Procedure, Preparation, Analysis and Interpretation
- 213 Downloads
Hydraulic in situ measurement of rock mass permeability by packer (Lugeon) testing is an inherent and integral element of many engineering, hydrogeological and mining investigation. This paper describes and discusses geotechnical testing in the design process from a consulting practitioner’s perspective. This study focuses on the Packer testing planning, procedure, results & interpretation. Packer test system is an optimum method for obtaining values of hydraulic conductivity in wells that are difficult to analyse using conventional slug test systems. Packer tests are carried out to assess the variability of a borehole as it intersects various hydrogeological units. It gives vertical distribution of hydraulic properties and water quality in the aquifer and usually cheaper than a nest of wells and gives more continuous record and this knowledge can often be essential for a proper design. The role, objectives, types and interpretation of testing, limitations and recommended good practices as part of the geotechnical design process are outlined through the examination of test data from a case record.
KeywordsPacker test Lugeon Hydraulic conductivity Rock mass permeability Mining Infrastructure Geotechnical engineering
The author thanks to anonymous reviewers for their valuable feedbacks to improve the manuscript.
- Becker DE (2010) Testing in geotechnical design. Geotech Eng J SEAGS AGSSEA 41(1). ISSN 0046-5828Google Scholar
- CFEM (2006) Canadian foundation engineering manual (4th edn). Published by Canadian Geotechnical Society. BiTech Publishers, Vancouver, BCGoogle Scholar
- Jacob CE (1947) Drawdown test to determine the effective radius of artesian wells. Trans ASCE 112:1047Google Scholar
- Maini YNT (1971) In situ hydraulic parameters in jointed rock; their measurement and interpretation, PhD Dissertation, Imperial College, London, EnglandGoogle Scholar
- Mayne PW, Coop MR, Springman SM, Huang A, Zornberg JG (2009) Geomaterial behaviour and testing. Geotech Eng J SEAGS AGSSEA 41(1) ISSN 0046-5828 11. In: Proceedings of the 17th international conference on soil mechanics and geotechnical engineering, Alexandria, EgyptGoogle Scholar
- Royle BM, Sc MA (2002) Standard operating procedures for borehole packer testing, p 22. http://www.robertsongeoconsultants.com/hydromine/topics/Site_Assessment/Packer_testing.pdf
- Thiem G (1906) Hydrologische Methoden. Gebhardt, Leipzig, p 56Google Scholar
- Thomas RH (1982) Permeability testing during wire-line drilling—a new system. Technical paper. Ground Engineering. Wimpey LaboratoriesGoogle Scholar
- U. S. Bureau of Reclamation (1963) Earth manual (1st edn), U.S. Government Printing Office, Washington, DCGoogle Scholar
- U. S. Bureau of Reclamation (1965) Design of small dams, U.S. Government Printing Office, Washington, DCGoogle Scholar
- Zeigler TW (1976) Determination of rock mass permeability. Technical report S-76-2. Chief of Engineers, U.S. Army office, Washington, DCGoogle Scholar