Goafs are underground cavities that form as a result of mining activities. They are typically left behind after coal or other minerals have been extracted from the earth. These cavities can vary in size and shape, and are often filled with water or other substances.
Goafs can pose a number of risks to miners and the surrounding environment. They can collapse suddenly, leading to injury or even death for workers. Additionally, goafs can destabilize the ground above them, leading to land subsidence and other geological hazards.
In order to mitigate the risks associated with goafs, mining companies must carefully monitor and manage these underground cavities. This may involve filling them with inert materials, such as sand or concrete, to prevent collapses. It is also important for mining companies to develop comprehensive plans for monitoring and addressing any issues that may arise from goafs in order to ensure the safety of workers and the surrounding community.