How to effectively prevent ground subsidence problems caused by goaf areas

>: > #>With the increasing demand for minerals in industrial production, the domestic mining industry has developed vigorously. Over the years, a large number of goaf areas have been formed in mines in various places. As mines are mined deeper, the ground pressure increases. Under the strong ground pressure, underground hollow areas are prone to collapse accidents, especially for mines that convert underground to open-pit mining. The goaf has become an important factor restricting the development of mines. problem.
: > #>Weihai Jinghe Digital Mining Technology Co., Ltd. has launched the Mine Star drilling stress online monitoring and early warning system, ground subsidence and settlement monitoring system, microseismic monitoring system, and tunnel convergence online monitoring to address safety issues in goaf areas. system and other monitoring methods. Jinghe Company believes that the essence of phenomena such as caving, ground settlement, and deformation in the goaf is that the balance of the original stress system in the goaf is broken, and the rock mass re-finds the stress balance. The Mine Star drilling stress monitoring system is based on the principle of dynamic balance of stress in the goaf. During the monitoring process, it combines the mechanical properties of rock and soil and the characteristics of geological structures, selects to set up monitoring points in places that are prone to instability, and drills holes at the selected locations. One or more steel strands are anchored at the bottom and opening of the hole. When the rock stress at the bottom of the hole changes, the stress on the steel strands will inevitably change. The stress data on the steel strands is obtained through the equipment at the opening. , so as to judge the stability of the rock mass within the monitored range and ensure the safety of the goaf. This can provide early warning and forecast of ground pressure disasters in mines, which is conducive to mining enterprises to further take countermeasures to avoid disastrous accidents.