【摘要】 冲击地压威胁着矿井安全生产和人员安全,为科学合理地评价煤矿冲击地压等级,基于煤矿冲击地压现状,构建了以地质因素、安全管理因素、开采技术因素、其他因素为准则层,以开采深度、煤岩力学性质等24项指标为指标层的煤矿冲击地压危险性综合评价指标体系;将熵权法引入可拓理论中,提出了一种冲击地压评价新方法——熵权物元可拓模型,运用新方法对某煤矿冲击地压等级进行评价,待测煤矿冲击地压等级为"安全"等级,评价结果符合工程实际,结果表明:熵权物元可拓模型可以较好地对冲击地压进行评价,该模型评价准确、合理。更多还原

【Abstract】 Rock burst threatens the mine safety production and personnel safety. To evaluate the coal mine rock burst grade scientifically and rationally, based on the current situation of coal mine rock burst, the comprehensive evaluation index system of coal mine rock burst risk is introduced, which takes geological factors, safety management factors, mining technology factors and other factors as the criterion layer and 24 indexes such as mining depth and mechanical properties of coal and rock as the index layer; entropy weight method is introduced into the extension theory, and a new method of rock burst evaluation is proposed,which is the entropy-weight and matter-element extension model, and the new method is used to evaluate the rock burst grade in a coal mine. According to the engineering practice, the level of rock burst in the coal mine is "safety"grade, and the evaluation result is consistent with the actual engineering. The results show that the entropy-weight and matter-element extension model can better evaluate the rock burst, and the result of evaluation is accurate and reasonable.更多还原