保德煤矿88303工作面瓦斯涌出量动态分源预测

发布时间：2018-06-09 03:06

本文选题：瓦斯涌出 + 预测参数　；参考：《辽宁工程技术大学》2014年硕士论文

【摘要】：本文针对保德煤矿88303工作面瓦斯涌出量预测的问题,采用分源预测的方法,对比动态分源预测法与传统分源预测法预测精度,并将预测精度高的分源预测法应用到实践中去解决煤矿安全生产。从自然因素和开采技术因素两方面的详细分析了瓦斯含量、大气压力的变化、回采工作面瓦斯涌出不均衡性、开采规模、开采顺序、生产工序、配风量以及顶板冒落与回采工作面瓦斯涌出情况之间的关系。通过对采煤工作面的分析,确定了工作面瓦斯涌出来源即煤壁、落煤、采空区瓦斯涌出三部分。根据现场收集、整理和分析大量的实测数据,总结了保德煤矿88303回采工作面瓦斯涌出时空分布规律。通过对88303工作面分源预测法中部分预测参数进行修正,分析了保德煤矿工作面推进速度与瓦斯涌出量之间的规律,基于该规律提出动态分源预测法数学模型。运用传统分源预测法和动态分源预测法在保德煤矿的工作面进行效果检验,结果表明动态分源预测法提高了预测的精度,为本矿井接续工作面和邻近矿井瓦斯预测工作提供可靠的科学依据和途径。
[Abstract]:Aiming at the problem of gas emission prediction in 88303 working face of Baode Coal Mine, this paper adopts the method of source separation prediction, and compares the accuracy of dynamic source dividing prediction method with that of traditional source dividing prediction method. The method of source separation prediction with high prediction precision is applied to solve the problem of coal mine safety in practice. From two aspects of natural factors and mining technical factors, the gas content, the change of atmospheric pressure, the unbalance of gas emission in mining face, the mining scale, the mining sequence and the production procedure are analyzed in detail. The relationship between air distribution and roof caving and gas emission in mining face. Through the analysis of the coal face, the gas emission sources of the working face are determined, that is, coal wall, coal fall and gas emission from goaf. Based on the collection, collation and analysis of a large number of measured data, the space-time distribution of gas emission in 88303 mining face of Baode Coal Mine is summarized. Based on the modification of some prediction parameters in 88303 working face, this paper analyzes the law between propelling speed and gas emission in Baode coal face, and puts forward a mathematical model of dynamic source separation forecasting method based on this law. The results show that the accuracy of the prediction is improved by using the traditional method of source separation prediction and the method of dynamic source separation prediction in the face of Baode Coal Mine, and the results show that the method of dynamic source separation prediction has improved the accuracy of the prediction. It provides a reliable scientific basis and approach for the gas prediction work of the joint face and adjacent mines in this mine.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD712.5

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