A Model for Estimating Porosity Distribution in Gob Area

WANG Yong-sheng; YU Xiao-bo

Safety in Coal Mines > 2013 > 44(8): 11-13.

WANG Yong-sheng, YU Xiao-bo. A Model for Estimating Porosity Distribution in Gob Area[J]. Safety in Coal Mines, 2013, 44(8): 11-13.

Citation:

WANG Yong-sheng, YU Xiao-bo. A Model for Estimating Porosity Distribution in Gob Area[J]. Safety in Coal Mines, 2013, 44(8): 11-13.

Citation:

WANG Yong-sheng, YU Xiao-bo. A Model for Estimating Porosity Distribution in Gob Area[J]. Safety in Coal Mines, 2013, 44(8): 11-13.

A Model for Estimating Porosity Distribution in Gob Area

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Published Date: August 19, 2013

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Abstract

Abstract

Along the direction of working face advancing, gob area can be divided into two sub-areas, named as freedom accumulation area and pressure accumualtion area. Based on the theories of overlying strata movement, a model is deduced to describe the porosity distribution in gob area. This model is not only continuously derivative inside the both two sub-areas above mentioned, but also it is continues on the boundary between the two sub-areas, and this characteristic can be expected beneficial to the stability of numerical solution of gas seepage in gob area.
- gob area,
- porosity,
- freedom accumulation area,
- pressure accumulation area,
- hulking coefficient,
- gas migration,
- mathematical model

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[1]	徐家林, 钱鸣高. 岩层采动裂隙分布在绿色开采中的应用[J].中国矿业大学学报, 2004, 33(2):141-144.
[2]	李树刚. 综放开采围岩活动及瓦斯运移[M].徐州:中国矿业大学出版社, 2000.
[3]	王永胜. 低瓦斯矿井瓦斯涌出规律及治理技术研究[D].徐州：中国矿业大学，2011.
[4]	钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.

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