永安接替井3_煤层瓦斯涌出量预测(毕业设计).doc

永安接替井3#煤层瓦斯涌出量预测 摘要 永安煤矿接替井位于山西省晋城市沁水县端氏镇，隶属于沁和能源有限公司，矿井为新建矿井，设计能力600Kt/a，计划于2007年上半年正式投产。 矿井生产初期在一采区布置一个年生产能力为600 kt/a综采工作面，工作面面长120m，采用走向长壁采煤法，分层开采，全部垮落法管理顶板。同一采区相邻工作面采用跳采，以利于分层工作面假顶的形成，避免相邻工作面采掘的相互影响。 初期，矿井采用中央并列式通风系统，即主、副斜井进风，回风立井回风；采用负压抽出式通风方式。根据对3#煤层测定的瓦斯基础参数以及工作面瓦斯涌出量预测结果表明，工作面瓦斯涌出量较大。属于高突矿井。 根据本矿井的基本情况，在本次设计中采用了分源预测法预测本矿井的瓦斯涌出量。 关键词：通风 瓦斯含量 瓦斯涌出量预测 Yongan replace mine lies in Jincheng City, Qinshui County duanshi town, Shanxi Province , , under the Qin and Energy Limited Mine for new mine design capacity of 600 kt / a, plans to the first half of 2007 put into formal operation. Mine production in the initial layout of a mining area, a production capacity of 600 kt / a fully mechanized coal face. work to please 120 m long, to use long wall mining, slice mining, all falling roof Management Act. The same mining area adjacent Face jump mining, so stratified at the top of the face formation, avoid the adjacent mining face interaction. Initial mine alongside a central ventilation system, the principal and vice Incline into the wind, return air shaft to the wind; out using negative pressure ventilation mode. According to the 3# coal seam gas in the basic parameters of gas emission rate forecast results indicate that Face gas emission volumes. Mine is high outburst. According to the basic situation of the mine, at the design used in the sub-source。 Forecasting the mine gas emission. Key words：Ventilation Gas Content Gas emission forecasts 摘要 .............................................................................................................................1 1 前 言 ...................................................................................................................5 2.国内、外研究现状...................................................................................................7 2.1矿山统计预测法 ..............................................................................................................7 2.2分源预测法 ..................................