Abandoned Mine Grouting

The process of repairing a subsidized mine and the grouting process

There are several abandoned coal mines and hence a need to repair and restore them. The need to repair them is quite urgent as it can go on to cause mine subsidence which results in the bowing and collapse of the earth.

The process of repairing a subsidized mine can take up to several months. The only way to locate mines is to drill. These subsidized mines can cause great damage to homes and roads endangering scores of lives. These perilous pits need to be repaired before they become worse and go on to affect the environment around them. The dangers of abandoned coal mines are plentiful such as people falling in them, the continuous fire burning inside belching out harmful gases and the homes build around the region developing cracks and even caving in.

Most of this can be stopped with the process of grouting the abandoned coal mines. These can be undertaken with different kinds of grout mixes and increase stabilization from beneath roadways, buildings and dams too.

The first thing is to use bore well cameras to determine the depth and the extent of the void underneath the earth.

Then the mine maps are created to circle out the region for the drilling purpose. The grout holes can then be dug within the region of the mine map. The next step is to create the grout mix. This should be based on the consistency and the characteristics of the ground and the strength requirements that are needed in the grout mix. It should also be concentrated enough to remain in the specific demarcated region and not flow far. Once this has been prepared the grout needs to be injected within the shaft. The mine map created can help in determining the number of grout holes to be created to inject the grout. This ensures that it is injected where it is needed the most and there is no fear or incidence of the ground caving in, in the future. This process can go on to control the drainage from the mine and stop its hazardous impact.