In Trzebinia (Małopolskie Voivodeship), microgravimetric studies of areas near buildings, which are potentially at risk of sinkholes, will be carried out. The research will allow to accurately determine the structure of the soil. The Mine Restructuring Company assures that for the time being there are no grounds for evacuating the residents.
The research is to begin at the turn of April and May and cover 38 sites near buildings potentially at risk of sinkholes. The indicated places are located near buildings and roads.
– Microgravimetric surveys will be carried out in these places. This will allow us to determine the structure of the ground and confirm or exclude a possible threat – Mariusz Tomalik, spokesman for Spółka Restrukturownictwa Kopalń, said.
Residents are informed about the planned activities during meetings with company representatives. – These meetings are aimed at presenting to the residents the current situation and actions that will be taken – said the spokesman for SRK.
At the same time, he assured that for now there are no grounds for evacuation, but if necessary, “all people who would have to leave their premises will be provided premises (substitute) under optimal conditions for the inhabitants.
Zadliska in Trzebinia
According to the latest data provided last week by the Chief National Geologist, Piotr Dziadzia, in Trzebinia there are a total of 481 places at risk of sinkholes. 38 is located in close proximity to buildings – this buffer zone has a border of 20 meters.
The post-mining damage is caused by the former “Siersza” hard coal mine operating in this town since the mid-nineteenth century. In the years 1999-2001 the mine closed down. At the beginning, the exploitation was shallow, at a depth of 20-25 meters. Then the underground passages went lower and lower. The liquidators assumed that the voids left after exploitation would be filled with water. Over time, the water began to come closer and closer to the surface of the earth.
Main photo source: Pawel, Contact 24