关键词: 高陡边坡, 地压监测}优化设计}隐伏危险区域}波速场成像技术

Abstract: Ground pressure monitoring is a key link in mine safety management and an effective monitoring method in the development of mineral resources. According to the geological conditions and ground pressure activity of Sifang Gold Mine in Shaanxi Province,in order to improve the recovery rate of resources,effectively control the ring slope of the mine surface,and solve the key problems of safe and green mining,the ideal positioning errors of different layout schemes are analyzed according to the characteristics of mine production and the basic requirements of sensor layout. The monitoring scheme of ground pressure system which meets the requirements of mine monitoring is analyzed and designed from the economic point of view. In order to further explore the weak and abnormal areas of the mine slope and determine the regional stability of the slope,this paper uses wave velocity field imaging technology to obtain the imaging results of the low-speed dangerous area and high-speed dangerous area of the slope monitoring profile. Furthermore,the advanced identification and monitoring effect analysis of the hidden cavity abnormal area inside the slope body is realized. The results show that under ideal conditions,when a certain monitoring point is set at different elevations,the difference in volume positioning error is not obvious. Combining with the relative wave velocity field imaging results of the mine slope area where the monitoring source is monitored,based on the current station network layout scheme,it can meet the needs for identification of dangerous areas within the mine slope monitoring profile. This research results is of great significance for reducing the occurrence of mining disaster accidents and improving the stability of mine safety and production.

Key words: high steep slope,ground pressure monitoring,optimization design,hidden danger zones,wave velocity field imaging technology