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Download technical papers by Coffey people on groundwater.

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Effect of Fracture Permeability on Connectivity of Fracture Networks

T. Molebatsi, S. Galindo Torres, L. Li, D. Bringemeier and X. Wang

Many open pit mines are located in fractured rock systems where water flow paths are complex and difficult to predict. These flow paths are typically controlled by a small subset of fractures that are permeable and interconnected. Most models of flow in fractured rock systems are based on a network of interconnected fractures that are all assumed to be permeable. However this assumption is rarely observed in natural rocks where a significant fraction of the fractures within a connected cluster could be impermeable.

Groundwater exploration adjacent to the Kuala Lumpur International Airport, Malaysia - challenges and chances of exploring a fractured rock aquifer

By Detlef Bringemeier

Deep wells in fractured rock aquifers are typically less attractive than comparatively low cost and high yield wells in shallow alluvial aquifers. Environmental constraints, lag or overproduction of alluvial aquifers, and proximity to the end user are good reasons to explore fractured rock aquifers as a feasible alternative to alluvial aquifers.

Modelling of Multiphase Fluid Flow for an Open-Cut Mine Development within a Geothermal Active Caldera

By D. Bringemeier & X. Wang, H. Xing & J. Zhang

High resource prices over the last decade made mine developments in ground with challenging geotechnical conditions more feasible. Among others, mines were developed in geothermal active areas. Geotechnical risk assessments for mine developments in geothermal areas do not only have to consider a wide range of well known geotechnical hazards, but also need to include geothermal hazards.