利用空间弹性理论分析和计算采动影响下的底板应力分布

来源 :阜新矿业学院学报(自然科学版) | 被引量 : 0次 | 上传用户:frankyfeng
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本文利用空间问题的弹性理论计算和分析了采动影响下的底板应力分布,并参照以往学者的研究成果,利用最小势能原理和极限平衡原理,分析了底板含水层易在采空区和采场突水的原因.同时根据计算和分析结果,提出底板巷道应布置在超前支承压力影响深度Z_0以下;缩短工作面长度可以减轻底板突水.并将分析结果与现场实测结果进行了比较,证实了本方法的可靠性. In this paper, the floor stress distribution under the influence of mining is calculated and analyzed by using the elasticity theory of spatial problems. Based on the research results of past scholars, the principle of minimum potential energy and limit equilibrium are used to analyze the influence of floor aquifer on goaf and stope According to the results of calculation and analysis, it is proposed that the roadway of the floor should be arranged below the influence depth of advance support pressure below Z_0, and the length of working face should be shortened to reduce water inrush from the floor, and the results of the analysis are compared with those measured in the field. The reliability of this method.
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