The water inrush occurred from the seam floor would have its hidden and sudden features and thus the mine water prevention and control of the coal mining face would be facing a great problem and challenge.The water inrush monitoring and measuring early warning technology would be a necessary measure in the mine safety production process.Based on the study on the seam floor water inrush monitoring and measuring,the monitoring and measuring conditions and the suitable scope,a new monitoring and measuring early warning system of the seam floor water inrush was researched and developed based on the optical fiber and optical grating communication and the sensing technology.The early warning system is consisted with the data collection system and the water inrush monitoring and measuring data integration analysis system.The early warning system could realize the monitoring and measuring the data on time collection,the curve on time display,remote analysis,the warning condition issue and other function.With the monitoring and measuring early warning experiment at 225 m section from the open-off cut and the stable of No.9208 coal mining face in the North Mine Shaft of Dongpang Mine,the practicability and effectiveness of the monitoring and measuring early waning system of the water inrush from the seam floor was preliminarily verified.%煤层底板突水问题,因其具有隐蔽性、突发性的特点,防治水工作面临巨大的问题和挑战,突水监测预警技术为煤矿安全生产过程中必要的措施。在研究煤层底板突水可监测性、监测条件及适用范围的基础上,研制开发了一套基于光纤光栅通信和传感技术的新型煤层底板突水监测预警系统。该系统由数据采集系统和数据突水监测数据集成分析系统组成,能够实现监测数据实时采集、曲线实时显示、远程分析、警情发布等功能。通过在东庞矿北井9208工作面自开切眼至距切眼225 m段监测预警试验,初步验证了煤层底板突水监测预警系统的实用性和有效性。
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