Relaxation and gas drainage boreholes for high performance longwall operations in low permeability coal seams

被引：0

作者：

Imgrund, Thomas ^{[1
]}

Bauer, Frank ^{[2
]}

机构：

[1] Thomas Imgrund Consultant, DMT GmbH and Co.KG, 45307 Essen

[2] Hazemag and EPR GmbH, 48249 Dülmen

来源：

Mining Report | 2013年 / 149卷 / 03期

关键词：

Floor gas emissions - Gas content - Gas drainage - Gas outburst - Gas pressures - Longwall operations - Low permeability coal seam - Related risk;

D O I：

10.1002/mire.201300019

中图分类号：

学科分类号：

摘要：

With an increasing depth of cover, gas emission control and gas outbursts prevention has become an increasingly important issue in coal mining. Deep multi-seam mining often requires operation in an environment characterised by a high gas content and gas pressure. Control of gas related risks has to be realised during heading and close to the longwall by proper risk assessment and flexible drilling schemes. These cover exploration and relaxation drilling, in-seam drilling for pre-drainage and cross measure drilling for drainage of roof and the floor gas emissions. DMT provides comprehensive solutions based on a scientific background. These solutions are engineered considering their technical feasibility. Hazemag Mining offers a large number of complete machinery including tools systems for the implementation of those solutions. ©2013 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin · Mining Report 149 (2013), Heft 3.

引用

页码：159 / 166

页数：7