矿井压降对瓦斯排放的影响——综述

IF 0.7 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Journal of Sustainable Mining Pub Date : 2021-03-25 DOI:10.46873/2300-3960.1032
P. Wrona, Z. Różański, G. Pach, A. Niewiadomski, T. Suponik
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引用次数: 1

摘要

气候变化会对采矿业和采后场所产生影响。其中,极端天气事件与突然和深度的压力下降有关,这导致气体从地下空间通过封闭的竖井排放到地面。在TEXMIN项目框架内进行的测试获得了这一现象的测量数据,并将验证用于进一步预测和缓解手段的数值模型。给出了三个算例。他们表明,压降的强度对封闭竖井的气体排放有很大影响。尽管考虑到每小时甚至更频繁的压力变化,应详细研究压降过程。考虑到封闭竖井附近排放气体的变化,即使距离排放点20e30 m,排放气体仍在增加。
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The influence of pressure drop on gas emissions from a mining shaft – an overview
Climate change can make an impact on the mining sector and post-mining sites. Among others, extreme weather events are connected with sudden and deep pressure drops which lead to gas emissions from an underground space to the surface through closed shafts. The tests undertaken in the frameworks of TEXMIN project lead to get measuring data of this phenomenon and will allow validating numerical models for further forecasts and mitigation means. Three examples of the results were presented. They showed that the intensity of pressure drop influences strongly on gas emissions from a closed shaft. Although the pressure drop process should be investigated in detail considering hourly or even more frequent variations of pressure. Considering the variation of emitted gases in the vicinity of the closed shaft they remained increased even 20e30 m from the point of emissions.
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来源期刊
Journal of Sustainable Mining
Journal of Sustainable Mining Earth and Planetary Sciences-Geology
CiteScore
1.50
自引率
10.00%
发文量
20
审稿时长
16 weeks
期刊最新文献
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