基于构造因素薄煤层综采应对变薄区对策

我国煤炭资源丰富,但煤层构造较为复杂,同时面临开采较薄煤层的问题。对薄煤层进行高效开采,成为可持续发展的一个关键所在。在煤矿生产过程中,特别是在揭露构造变薄区域的情况下通常采取跳面回采或者直接回采两种方式,为了实现最优方式回采,就要求从地质构造因素与矿井生产因素综合考虑,从而确定选择何种方式,采用分析掌握地质构造情况作为技术依据的方法,权衡两种方式的费用支出,最终实现对工作面是否跳面回采提出合理意见,为保证矿井生产接续提供有力的技术支撑。

华山景区主要景点的地质地貌成因解析

通过对华山景区主要地质地貌特征的调研和测量、分析，提出了主峰区的地质地貌成因特征。

基于量纲理论的煤层瓦斯压力计算模型的研究

煤层瓦斯压力是矿井瓦斯基本参数之一,它反映了煤层中瓦斯的赋存状态,是判断煤层突出危险性的重要指标,同时也是采取抽放措施的重要参考依据,因此准确地获取煤层瓦斯压力是非常重要的。本文基于瓦斯地质理论,以影响煤层瓦斯压力的地质构造因素为出发点,应用量纲分析方法,建立了煤层瓦斯压力的数学计算模型,并通过实例计算了某矿井煤层的瓦斯压力,从而验证了该计算模型能够较准确地反映实测结果。

Geological factors associated with unsuccessful exploration wells in the northern margin of the Qaidam basin

We investigated the geological factors associated with unsuccessful exploration wells in the northern margin of the Qaidam basin to better understand their cause.The structural situation,the hydrocarbon accumulation mechanism and unsuccessful well data collected from 1996 to 2005 were studied.The results show that the main geological factors associated with unsuccessful exploration wells are a lack of effective source rocks and a lack of effective traps,as well as the migration-accumulation conditions that exist in this area.The basin was reformed by Meso-Cenozoic tectonic evolution.Multi-stage tectonic activities have both positive and negative effects on hydrocarbon accumulation.Source rocks distribution,effective migration channels,effective traps and the tectonic evolution effects on hydrocarbons should be the key objects for further studies.