|本期目录/Table of Contents|

[1]李季,程五一,李敏,等.新型封孔材料的性能研究及封孔长度计算[J].中国安全生产科学技术,2011,7(2):42-45.
 LI Ji,CHENG Wu yi,LI Min,et al.Analysis on performances of new sealing drillhole material and calculation of sealing length[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(2):42-45.
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新型封孔材料的性能研究及封孔长度计算
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
7
期数:
2011年2
页码:
42-45
栏目:
学术论著
出版日期:
2011-02-28

文章信息/Info

Title:
Analysis on performances of new sealing drillhole material and calculation of sealing length
作者:
李季 程五一 李敏 张天麒
中国地质大学(北京)工程技术学院,北京100083
Author(s):
LI Ji CHENG Wuyi LI Min ZHANG Tianqi
School of Engineering & Technology China, University of Geosciences, Beijing 100083, China
关键词:
封孔材料渗透系数粘结强度封孔长度
Keywords:
sealing drillhole material permeability coefficient cementation strength sealing length
分类号:
X937
DOI:
-
文献标志码:
A
摘要:
研究聚氨酯硬泡材料的渗透性能和粘结性能,旨在为煤矿瓦斯抽放和煤层注水工艺提供本质安全型的封孔材料,从而提高瓦斯抽放和煤层注水的效果,做好瓦斯、煤尘灾害的预防工作。根据达西定律设计材料渗流量的测试实验,将测定的数据进行线性拟合后,得出聚氨酯硬泡材料的渗透系数为100546×10-6cm/s;通过材料的抗压剪切力测试,得出聚氨酯硬泡与煤的粘结强度为38795kPa;根据封孔模拟实验结果,选择压注药液法作为封孔方法,并根据钻孔受力平衡原则,计算得出由聚氨酯硬泡作为封孔材料的封孔长度至少为0967m。
Abstract:
The permeability and adhesive property of polyurethane rigid foam material were measured and analyzed, in order to provide a kind of intrinsically safety sealing drillhole material to gas drainage and coal seam infusion technology, and thereby to improve the effective of gas drainage and coal seam infusion and to prevent the occurrence of gas and coal dust hazard. Based on Darcy's law and linear fitting data of polyurethane rigid foam's seepage quantity, the permeability coefficient of the material was 100546×106cm/s. Cementation strength between material and coal was 38795kPa through compressive shear test. The pressure and injection liquid method was chosen as sealing drillhole method according to the result of simulation experiment. The sealing length was calculated on the basis of force balance principle, which was 0967m at least.

参考文献/References:

[1]虞岳明,谢正文,曲方.灰色组合模型在钻孔瓦斯流量预测中的应用[J].中国安全生产科学技术,2007,3(4):4043 Yu Yueming, Xie Zhengwen, Qu Fang. Grey forecasting method for the gas flow prediction from boreholes[J]. Journal of Safety Science and Technology,2007,3(4):4043
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[7]陈杰,金龙哲.关于聚氨酯封孔可提高瓦斯抽放效果的研究[J].煤炭工程,2003,(8):4749 Chen Jie, Jin Longzhe. Study on increasing the effect of gas drainage with polyurethane sealing method[J]. Coal Engineering, 2003,(8):4749
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备注/Memo

备注/Memo:
收稿日期: 2010-12-01 作者简介: 李季,博士研究生。
更新日期/Last Update: 2011-02-28