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Explore our enriched product range and enhanced services under the Jennmar Specialty and Civil divisions. Join us on this journey as we redefine possibilities in the tunneling and civil engineering landscape, offering a wide range of products used in supporting, building, and rebuilding our infrastructure from above and below ground.
Channel Lagging
Jennmar's channel lagging is designed specifically to handle the ground conditions, backfill and mining equipment pressures. The channel sections are specifically designed for use with structural members and ease of installation. The sections and materials used is design for efficient installation and transportation to the tunnel location. A variety of sections, thickness and coating are available for project specific designs and applications.
Liner Plate
Tunneling and shaft construction components, including 4-flange steel liner plates, part of a system successfully used since 1926, provide lightweight, easy-to-handle, and safe support for soft ground conditions. 4-flange liner plates are manufactured by Jennmar Civil in the USA (Sinton, TX, and Louisville, KY) and available in 16” and 24” widths as corrugated or smooth plates. Liner plates are formed from one piece of steel to provide longitudinal and circumferential flanges with optimum load-bearing and bending resistance characteristics.
Lattice Girder
Look to Jennmar Civil for quality USA manufacturing and development of ground support elements. We provide designs and products for Lattice Girders used in SEM/NATM construction.
V-Deck Lagging
Jennmar Engineering has designed, tested, and developed the Impact Resistant Lagging (IRL) system to protect steel sets. Various steel sets that are protected with IRL panels have been approved by MSHA and installed in several underground roof fall rehabilitation projects.
Steel Ribs
Steel ribs are efficient and safe ground control elements in underground construction. Selection of section type and dimension is accomplished following structural and project requirements. Besides custom-bent steel ribs, straight beams, forepoling sheets, and steel lagging can also be fabricated.
Jennmar Civil manufactures cold-formed beams for underground support applying sound techniques for shaping steel required in the tunneling industry.
Tunneling & Civil Construction
Jennmar Civil delivers engineered solutions for tunneling, ground control, and underground construction projects worldwide. From excavation support and ground stabilization to tunnel reinforcement and specialty construction products, our comprehensive portfolio is designed to meet the evolving needs of the civil construction industry while promoting safety, reliability, and performance.
Mincon Forepoling Systems
Mincon has earned its reputation as The Driller’s Choice thanks to nearly five decades of developing world-class rock drilling solutions for a wide range of applications.
