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| 1 | 烧结温度对煤层气井用陶粒支撑剂的影响研究显示文摘本文以阳泉铝矾土和煤矸石为原料,长石为烧结助剂,制备了适用于煤层气水力压裂开采的陶粒支撑剂。利用SEM和XRD,表征了不同温度下烧结的陶粒支撑剂的显微结构及物相组成;研究了烧结温度对陶粒支撑剂材料的抗破碎率、密度的影响。结果表明:样品结晶相为莫来石,刚玉和方石英,并随着温度升高,莫来石相含量逐渐增多,且结晶度也越来越好,在1450℃时,二次莫来石仍未转化完成;随着烧结温度的升高,样品密度与呈先上升后下降的趋势,破碎率呈现先降低后升高的趋势。1300℃烧结下的样品性能最好,体积密度为1.40 g/cm3,35 MPa下破碎率为7.06%。 | 王田惠 田玉明 周毅 柴跃生 李占刚 白频波 | 2016 | 硅酸盐通报2016，35，3： | 5 |
| 2 | Water inrush evaluation of coal seam floor by integrating the water inrush coefficient and the information of water abundance显示文摘The method of singular coefficient of water inrush to achieve safety mining has limitation and one sidedness. Aiming at the problem above, large amounts of data about water inrush were collected. Then the data, including the maximum water inrush, water inrush coefficient and water abundance in aquifers of working face, were processed by the statistical analysis. The analysis results indicate that both water inrush coefficient and water abundance in aquifers should be taken into consideration when evaluating the danger of water inrush from coal seam floor. The prediction model of safe-mining evaluation grade was built by using the support vector machine, and the result shows that this model has high classification accuracy. A feasible classification system of water-inrush safety evaluation can be got by using the data visualization method which makes the implicit support vector machine models explicit. | Shi Longqing Qiu Mei Wei Wenxue Xu Dongjing Han Jin | 2014 | International Journal of Mining Science and Technology2014，24，5： | 3 |
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