The numerical simulation of permeability rules in protective seam mining Online publication date: Mon, 26-Sep-2016
by Cun Zhang; Shihao Tu; Lei Zhang; Fangtian Wang; Qingsheng Bai; Hongsheng Tu
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 13, No. 3, 2016
Abstract: The protective seam mining has become one of the most important measures of preventing outburst hazard in the deep outburst coal seam. The comprehensive study of gas permeability change rules and gas seepage rules of the protected seam close to the protective seam in the mining process of the protective seam need to be carried out. Based on the current researches, the secondary development of flow model using FISH language is embedded in FLAC3D. Combined with the in situ conditions, the permeability changes in the process of protective seam mining are simulated by the modified models. Based on the above information, the seepage of gas is analysed, seepage path of pressure-relief gas and the distribution of gas pressure in protected seam are obtained. The simulated results provide the theoretical foundation for guiding the field practice and the field data analysis also confirm the correctness of the model. [Received: December 12, 2014; Accepted: July 4, 2015]
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Oil, Gas and Coal Technology (IJOGCT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook