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1、0竹林山 3 煤层矿井瓦斯涌出量预测摘要：瓦斯是成煤过程中的伴生气体，它源于煤层又储存于煤层之中，一旦开采煤炭就会伴随有瓦斯涌出。瓦斯是一种灾害气体，它不但污染环境，而且可以诱发多种形式的灾害事故，对煤矿安全生产具有极大的危害性；同时，瓦斯又是一种高效洁净的能源，合理的开发与利用瓦斯可以让瓦斯造福于人类。矿井瓦斯涌出量预测的任务是确定新矿井、新水平、新采区、新工作面投产前瓦斯涌出量的大小，为矿井、采区和工作面提供瓦斯涌出方面的基础数据，它是矿井通风设计、瓦斯抽放和瓦斯管理的必不可少的基础参数。为了防止瓦斯突出，减少因为瓦斯突出而造成的人员伤亡和经济损失，本文在分析研究了几种瓦斯涌出量预测方法的
2、基础上，选用分源预测法对矿井瓦斯涌出量进行预测。应用分源预测法预测矿井瓦斯涌出量，是以煤层瓦斯含量、煤层开采技术条件为基础，根据各基本瓦斯涌出源的瓦斯涌出规律，计算回采工作面、掘进工作面、采区以及矿井瓦斯的涌出量。本文采用的是竹林山煤矿中预测所需的原始资料，对煤矿瓦斯涌出量进行了精确的预测研究。关键词： 煤层瓦斯含量 涌出量预测 分源预测法1The prediction of gas emission of 3# coal bed in ZhulinshanAbstract: Gas is associated when carbo appeared.It results from coal
3、seam as well as stores in the coal seam.Once mined it will be accompanied by gas flowing.Gas is damaged aero.It is not only polluted environment but also cause to happen polymorphous damage disaster failure.It plays an much hazardness part in coal mine safety production.Meantime,gas is also clean so
4、urce.rational exploitation and use gas may bring benefit to manThe duty of predicting the gas emission air makes certain new mine ,new level、new mining district、gas emission before new workplace put into production.It supply database for pit,mining district and workplace.It is indispensable foundati
5、on parameter about mine ventilation design,gas drainge and gas management.In order to prevent gas burst, reduce dead and wounded and economic lose that is because gas burst, this text adopted predicted method named divide the source and predict the law,which predict gas emission.And the text used so
6、rts of prediction method.That use predicted method named divide the source and predict the law forecast how much pit air flowed used coal seam methane content、coal seam production technical condition as fundament，used basic gas flow rule，counted productive workings 、heading face、working district and
7、 pit airs Gas emission.This text used basic data that is forecasted from Zhulinshan coal .It studyed coal-mine gas emission precisely.Keywords：The content of coal seam Gas emission divide the source and predict the law2目 录1 引言 .11.1 国外研究现状 .11.2 国内研究现状 .22 矿井瓦斯涌出量预测方法 .52.1 矿山统计法 .52.1.1 矿山统计预测法的工作步
8、骤及计算方法 .52.1.2 采用矿山统计法预测需要注意的几个问题 .72.2 分源预测法 .82.2.1 分源预测法所需的原始资料 .92.2.2 掘进工作面瓦斯涌出量计算 .92.2.3 回采工作面瓦斯涌出量计算 .102.2.4 生产采空区瓦斯涌出量计算 .132.2.5 生产采区瓦斯涌出量计算 .132.2.6 已采采空区瓦斯涌出量计算 .132.2.7 矿井瓦斯涌出量计算 .143 矿井概况 .153.1 地形、地貌及水系 .153.2 地质特征 .163.2.1 地层及地质构造 .163.2.2 地质构造 .173.2.3 煤层及煤质 .183.3 井田储量 .193.4 矿井生产能力及服务年限 .203.5 井田开拓方式和水平划分 .203.6 矿井通风方式及瓦斯涌出情况 .214 3 煤层瓦斯含量规律分析 .224.1 影响煤层瓦斯含量的主要因素 .224.1.1 煤层的埋藏深度 .2234.1.2 煤层与围岩的透气性 .234.1.3 煤层倾角和露头 .
