Structural failures in coal mines can be attributed to many factors and often result in roof collapses and other damage. Mine repairs require expert attention to detail and a clear understanding of why the failure occurred. Here is some information to keep in mind when planning a structural repair at your mining operation.

Signs of Failure

When examining a mining facility that has failed, an engineer should assess the location’s structural integrity thoroughly, including the undamaged surroundings. Signs of damage include bent, buckled, or crushed columns; undermined concrete; missing or loose bolts; weakened or broken wood; and cracked or corroded metals.

Roof failure is the most common reason mines experience structural damage. The engineer’s investigation should include the roof and surrounding cavities, nearby roofing, and the geotechnical environment.

Common Causes

The top causes of structural damage in mines are poor soil stabilization and inferior groundwater control, often resulting from an inadequate study of the environment during construction. Over time, the environment can also change due to extreme weather and variations in moisture levels, altering the characteristics of the soil and ground supporting the structure.

Types of Repairs

Engineers can perform soil stabilization to alter the physical properties of the ground supporting the mine. Often, this process includes groundwater control methods to prevent erosion. These may consist of installing in-pit pumping to remove moisture, placing cut-off walls to deter groundwater from shallow alluvial or drift deposits, or sealing off water along drilling or fracking locations.

If your company needs mine repairs, trust the experts at T. Luckey Sons of Harrison, OH. This worldwide company uses state-of-the-art equipment and techniques to resolve challenging ground and surface problems. Their team has more than 40 years of experience helping government entities and private companies, including the White House, with issues such as soil stabilization and groundwater control. Call (513) 353-2345 to request a consultation, and visit their website to learn more about their mine repair services.