✦ LIBER ✦
Water resistant features of high-risk outburst coal seams and standard discriminant model of mining under water-pressure
✍ Scribed by Xiugen GU; Jiachen WANG; Yude LIU
- Publisher
- Elsevier
- Year
- 2010
- Tongue
- English
- Weight
- 327 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1674-5264
No coin nor oath required. For personal study only.
✦ Synopsis
It is important to emphasize the value of research in safe mining technology of high-risk water outburst coal seams. We describe briefly current conditions abroad and in China. Based on an Ordovician limestone aquifer with high-risk water outburst seams in the Feicheng coal field, we analyzed the water-resistant characteristics of a coal floor aquifuge and the behavior of water head intrusion of a confined aquifer and propose a safe criterion model and relevant technology of mining above aquifers. This has brought satisfactory results in engineering practice.