發(fā)布時(shí)間：2018-06-09 03:06

  本文選題：瓦斯涌出 + 預(yù)測(cè)參數(shù)　； 參考：《遼寧工程技術(shù)大學(xué)》2014年碩士論文

【摘要】：本文針對(duì)保德煤礦88303工作面瓦斯涌出量預(yù)測(cè)的問題,采用分源預(yù)測(cè)的方法,對(duì)比動(dòng)態(tài)分源預(yù)測(cè)法與傳統(tǒng)分源預(yù)測(cè)法預(yù)測(cè)精度,并將預(yù)測(cè)精度高的分源預(yù)測(cè)法應(yīng)用到實(shí)踐中去解決煤礦安全生產(chǎn)。從自然因素和開采技術(shù)因素兩方面的詳細(xì)分析了瓦斯含量、大氣壓力的變化、回采工作面瓦斯涌出不均衡性、開采規(guī)模、開采順序、生產(chǎn)工序、配風(fēng)量以及頂板冒落與回采工作面瓦斯涌出情況之間的關(guān)系。通過對(duì)采煤工作面的分析,確定了工作面瓦斯涌出來源即煤壁、落煤、采空區(qū)瓦斯涌出三部分。根據(jù)現(xiàn)場(chǎng)收集、整理和分析大量的實(shí)測(cè)數(shù)據(jù),總結(jié)了保德煤礦88303回采工作面瓦斯涌出時(shí)空分布規(guī)律。通過對(duì)88303工作面分源預(yù)測(cè)法中部分預(yù)測(cè)參數(shù)進(jìn)行修正,分析了保德煤礦工作面推進(jìn)速度與瓦斯涌出量之間的規(guī)律,基于該規(guī)律提出動(dòng)態(tài)分源預(yù)測(cè)法數(shù)學(xué)模型。運(yùn)用傳統(tǒng)分源預(yù)測(cè)法和動(dòng)態(tài)分源預(yù)測(cè)法在保德煤礦的工作面進(jìn)行效果檢驗(yàn),結(jié)果表明動(dòng)態(tài)分源預(yù)測(cè)法提高了預(yù)測(cè)的精度,為本礦井接續(xù)工作面和鄰近礦井瓦斯預(yù)測(cè)工作提供可靠的科學(xué)依據(jù)和途徑。
[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.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TD712.5

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本文編號(hào)：1998561