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为了实现对矿井巷道及顶板的全方位实时应力监测,解决煤矿的冒顶、坍塌问题,采用理论分析和试验的方法,利用自发布里渊背向散射的分布式光纤应力传感技术可持续监测应力变化的特性,设计网格状结构的分布式光纤传感器网络,并与高速数据采集电路结合起来.研究结果表明:采用模糊控制理论来提高监测外界应力变化的精度及准确度,预测直接顶失稳及巷道围岩形变等导致的煤矿地质灾害的发生.研究结论突破了传统的单点式测量,为矿井的施工安全提供了更有利的保证.
In order to realize the all-directional real-time stress monitoring of mine roadway and roof, and to solve the roof fall and collapse problem in coal mines, the distributed optical fiber stress sensing technology with spontaneous Brillouin backscatter can be used to monitor the stress continuously by theoretical analysis and experiment The characteristics of the design, the design of grid-like distributed optical fiber sensor network, and with high-speed data acquisition circuit combination.The results show that: the use of fuzzy control theory to improve the accuracy and accuracy of monitoring changes in external stress to predict the direct top instability And the occurrence of coal mine geological disaster caused by surrounding rock deformation of roadway.The research conclusion has broken through the traditional single point measurement and provided a more favorable guarantee for mine construction safety.