Mining & Subsidence

The ability to analyze subsidence requires an understanding of the geologic settings, specifically stratigraphy and structure.  Without a thorough review of local geology, a cost effective drilling program cannot be developed.  Geophysical logs are routinely used to accurately identify geologic strata.  Area geology and mining practices also affect subsidence abatement techniques.  We have the capability and experience to evaluate and develop plans to address room and pillar mining, high extraction areas, coal seam thickness and depth, strength of geologic materials, and the effects of groundwater.

CTL |Thompson has been involved in design and implementation of abandoned underground mine abatement techniques including void fill grout backfilling, column building in open room and rubble zones, barrier construction, compaction grouting and densification grouting and portal closings.  We have performed these services on numerous projects.