电阻法测定水在煤体中渗吸特征的实验研究

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摘 要：利用四极探针法测定电阻率的原理搭建了水在煤体中渗吸特征的实验平台，开展了水在长焰煤、焦煤、瘦煤和无烟煤4种不同变质程度煤样中的渗吸特征实验，结果发现在煤样高度方向上，随着渗吸时间的延长，渗吸高度逐渐增加，但增加的速度逐渐减慢，渗吸高度和渗吸时间之间符合幂函数关系。

关键词：电阻率;渗吸特征;四极探针法

中图分类号：TD712      文献标识码：A       文章编号：1003-5168（2021）24-0085-03

Experimental Study on Measurement of Water Imbibition Characteristics in Coal by Resistance Method

SONG Xin    LIU Xiaoli

（School of Mining Engineering， North China University of Science and Technology， Tangshan Hebei 063210）

Abstract： Based on the principle of measuring resistivity by quadrupole probe method， the experimental platform of water imbibition characteristics in coal was built， and the experiments of water imbibition characteristics in long flame coal， coking coal， lean coal and anthracite coal samples with four different metamorphic degrees were carried out. The results show that the imbibition height gradually increased with the extension of imbibition time， but the increasing speed gradually slowed down， the relationship between infiltration height and infiltration time is power function.

Keywords： resistivity; imbibition characteristics; quadrupole probe method

煤層注水是防治瓦斯灾害、粉尘灾害和冲击地压的重要手段，注水过程中煤体的润湿分布规律是煤层注水参数设定的重要依据。（剩余2812字）

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