【摘要】 由于地质情况的复杂和试验资料的不足,冲击地压危险性综合评价中的影响因素普遍存在着随机性、模糊性、灰性及未确知性等不确定性。针对这一特点,将盲信息的数学理论引入到冲击地压危险性评价的综合指数法中,利用盲数来表达危险指数的不确定性,提出了综合指数的盲数形式。运用盲数运算法则计算出综合指数在不同的取值区间内的可信度,从而为判定冲击地压危险状态提供了更全面的依据,克服了传统方法过于绝对化的问题。实例分析表明,盲数在冲击地压危险性评价中能更好地考虑影响因素的不确定性,得到的结果更可靠。更多还原

【Abstract】 Due to the complexity of the geological conditions and deficiency of experimental data,uncertainty such as randomicity,vagueness,gray,unsureness widely exists in the influential factors of comprehensive evaluation of rock burst risks. Aimed at this point,it was suggested to apply the mathematic theory of blind information to the comprehensive index method for the assessment of rock burst risks,used blind data to express the uncertainty of the risk index, and thus put forward blind data form of the comprehensive index. The corresponding confidence levels of comprehensive index in different numerical value intervals were computed by the use of blind data algorithms,which consequently provides more overall evidence to judge the rockburst risk levels and overcomes the problem of absolutization in traditional methods. The case analysis indicates that blind data can consider influential factors better when evaluating rockburst risks and the coming result is more reliable.更多还原