Applied Sciences (Sep 2024)
Research on the Distribution Law of Surrounding Rock Temperature Field in High Geothermal Metal Mines and Construction of Cloud Monitoring System
Abstract
With the increasing demand for mineral resources, mining operations are gradually moving into deeper levels, leading to a rise in the severity of the high-temperature thermal hazard caused by geothermal heat in mines. To understand the distribution and characteristics of the temperature field in the surrounding rock of metal mines, this study derived a non-steady-state heat conduction differential equation suitable for the surrounding rock of underground metal mines based on the thermal property changes of rocks at high temperatures, thereby obtaining the distribution characteristics of the thermal insulation ring in the surrounding rock. However, the monitoring technology of the underground rock temperature field is constrained by factors such as long-term power supply of equipment and complex data collection. Therefore, based on high-precision temperature acquisition devices, this study developed and constructed a cloud monitoring system for the temperature field of the surrounding rock, realizing long-term online temperature field monitoring of the 930 m and 945 m horizontal underground roadway in the West Mountain mining area of Sanshandao. The monitoring data indicate that the system has stable data transmission and smooth operation, achieving remote long-term data collection and transmission. This has improved the efficiency of monitoring the temperature field of surrounding rocks in mines, providing a basis for the risk assessment of thermal environmental conditions in deep high-temperature areas of metal mines and the control of the thermal hazard in deep underground engineering.
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