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以四儿沟门金矿为工程依托,开展急倾斜薄到中厚矿体采场结构参数确定。通过对四儿沟门金矿1750中段进行地质调查、岩石力学实验,获得用于岩体质量分析所需的基本参数;应用岩体质量Q分级和Mathews稳定性图表法分析采场稳定性;基于Mathews稳定性图表法确定采场冒落的边界尺寸参数,为中深孔诱导冒落的采场结构参数确定提供理论依据。分析认为在采场高度保持36m不变的情况下,当采场长度为50m时两帮会发生塌落,而顶板则保持稳定,这些参数的确定为诱导冒落采矿技术的使用提供可能性。
Based on the project of Sier’ergoumen Gold Mine, the structural parameters of the stope of thin to medium thick ore body are determined sharply. Through the geological investigation and rock mechanics experiments in the middle section of 1750 in Er’ergoumen Gold Mine, the basic parameters needed for rock mass quality analysis are obtained. The stability of stope is analyzed based on Q grade of rock masses and Mathews stability diagram. Mathews stability chart method to determine the size of stope border size parameters for the deep-hole induced stope structure parameters to provide a theoretical basis. The analysis shows that when the height of the stope is kept at 36m, the two gangs will collapse when the stope length is 50m, while the roof is stable. The determination of these parameters provides the possibility of inducing the use of stope mining technology.