综采工作面浸水煤柱稳定性研究
冯博
（晋能集团长治公司三元下霍煤矿，山西 长治 046000）
摘要： 为了探究含水率对煤柱稳定性的影响，以晋能集团长治公司三元下霍煤矿综采工作面浸水煤柱为研究对象，
采用室内试验与现场实测相结合的方法，研究了不同含水率煤岩力学特征变化规律和浸水煤柱变形特征。研究结果表明，
随着含水率的增大，煤样单轴抗压强度呈降低趋势，但当含水率超过6.66%时，煤样单轴抗压强度随含水率增大而不会
发生较大变化。在超前支撑压力作用下，随着与工作面距离的增大，不同含水率区域煤柱帮鼓量呈先急剧降低后逐渐稳
定的趋势，且煤柱帮鼓量随含水率的增大总体呈增大趋势。
关键词： 含水率；浸水煤柱；力学特性；帮鼓量
中图分类号： TD822^+.3     文献标识码： A     文章编号： 2095-0802-(2020)01-0018-02
Study on Stability of Soaked Coal Pillar in the Fully Mechanized Mining Face
FENG Bo
(Sanyuan Xiahuo Coal Mine, Changzhi Company of Jinneng Group, Changzhi 046000, Shanxi, China)
Abstract: In order to explore the influence of moisture content on the stability of coal pillar, this paper took the soaked coal pillar
of Sanyuan Xiahuo Coal Mine of Changzhi Company, Jinneng group as the research object, and adopted the method of combining
indoor test and field measurement to study the change rule of mechanical characteristics and deformation characteristics of
coal pillar with different moisture content. The results show that with the increase of moisture content, the uniaxial compressive
strength of coal sample decreases, but when the moisture content is more than 6.66%, the uniaxial compressive strength of coal
sample will not change greatly with the increase of moisture content. Under the advanced support pressure, with the increase of
the distance from the working face, the side-up volume of the coal pillar in different moisture content areas decreases sharply at
first and then stabilizes gradually, and the side-up volume of the coal pillar increases with the increase of the moisture content.

 Key words: moisture content; soaked coal pillar; mechanical characteristics; side-up volume