瓦斯抽采钻孔新型高水材料封孔性能的研究与应用

doi:10.11799/ce201509031

Abstract

Abstract: In order to improve the borehole sealing effect and the gas drainage concentration of coal mine underground.Based on the shortcomings of the traditional sealing material,such as sealing effect is poor,complex operation and high cost,put forward the method of using new high water material.The material which is based on A (coal gangue powder),using B as adjuvant（quicklime,expansive agent ,dehydrating agent,coupling agent etc）.when the mass ratio of A: B: H2O=1:1:4,sealing effect to achieve the best,and the successful application in Guandi Coal Mine of Xishan Coal Electricity Group Company.The result showed that application of new high water material can be increased gas drainage concentration by 35%-50%.

Key words: gas drainage, grouting and sealing, new high water material, concentration

CLC Number:

TD712

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http://www.coale.com.cn/EN/Y2015/V47/I9/94

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The Research and Application of New High Water Material Sealing Performance in Gas Drainage Borehole

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