Construction or excavation work, the laying of communications, as well as the classic rock mining or construction of underground tunnels can affect the stability or load-bearing capacity of the surrounding earth layers, leading to voids and potential sinkholes.

Ground water

When exposed to underground groundwater currents, the soils under the surface layer can slowly erode or wash away, causing voids to form. Over time, the underground void grows, causing the surface layers of the soil to gradually become thinner, increase in area, and eventually collapse. In areas where the ground beneath the surface layer consists of limestone, which easily dissolves, craters are more common.

Rains

Heavy rains, floods, and a leak or burst drain pipe can cause excess water to pass through the ground, washing out fine particles and forming cavities, and potentially causing a sinkhole.

Man-made accidents

funds of engineering networks and infrastructure that are worn out and are not subject to sufficient control and renewal hide potential threats of breakthroughs and the formation of voids and cavities invisible from the outside.

Pay attention to these potential warning signs that may be signs of sinkhole formation:

• cracks that form in the ground;
• unexplained depressions or sinkholes in the ground;
• trees or fence posts that tilt or fall;
• rapid appearance of a hole in the ground.