可拓评判方法在厚松散层薄基岩下煤层安全开采分类中的应用

Application of extenics classification method to coal mining safety evaluation under thick unconsolidated formations and thin bedrocks

应用可拓评判方法与钻孔实测资料相结合,在物元理论、可拓集合论和关联函数运算的基础上,建立了厚松散含水层薄基岩下煤层安全开采等级评价的物元模型。选取松散层底部含水层单位涌水量、底部黏土层厚度、覆岩厚度、导水断裂带高度为评价模型的关键因素,对某矿六采区南部松散含水层薄基岩下煤层安全开采区域应用可拓理论分类界定了安全开采区域。实际开采证实了该采区水体下开采安全等级划分的可靠性。

Proposed a matter-element model for evaluating mining safety under thick unconsolidated formation and thin bedrock on the basis of the application of extenics engineering method and borehole data and the calculation of de- pendent function, matter-element theory and extenics set theory. Some factors, such as the specific capacity of the bot- tom aquifer, thickness of the bottom clay in the unconsolidated formation, thickness of the bedrock and height of water flowing fractured zone were chosen as the evaluation key factors in the matter-element model. The extenics classifica- tion method was used to classify the mining safety areas in the District No. 6 of an underground coalmine, and the min- ing practice verified the reliability of the classification.