Modular Mini-Packer Systems (MMPS)

Modular Mini-Packer Systems (MMPS) are mainly used for hydrogeological characterisation of excavation damaged zones around a tunnel or along a shaft.

Features of the Modular Mini-Packer System (MMPS)

  • for boreholes with 50 - 56 mm diameter
  • up to 6 borehole sections
  • the minimum interval length is 15 cm
  • pressure measurement in all intervals
  • flow lines for pneumatic or hydraulic permeability tests

Mini-packer version for boreholes through the tunnel lining of microtunnels (Alvéoles, ANDRA URL Bure) 


Jocelyn Gisiger

Geologist ETHZ

Hydrogeological instrumentation and tests

T 0041 44 806 29 89

Karam Kontar

Engineering Geologist
Hydrogeologist CHYN

Member of the extended executive board
Division Manager Hydrogeology / Hydrogeological instrumentation and tests / Hydro-tests in shallow and deep boreholes

T 0041 44 806 29 85

Yanick Lettry

Geologe / Hydrogeologist CHYN

Hydrogeological instrumentation and tests /
QM hydrogeological Instrumentation / Geochemistry

T 0041 44 806 29 53

Médéric Piedevache

Engineering Geologist ENSG

Member of the extended executive board
Branch manager Nancy, France

T 0033 3 83 94 04 50