辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(7)：689-695,7.DOI:10.11956/j.issn.1008-0562.2017.07.004
应力及应力-渗流作用下煤体变形试验研究
Experimental study on the deformation of coal under the action of stress and stress
摘要
Abstract
For mining under the action of stress change and gas seepage process induced deformation caused by the change of pore pressure of coal body,this paper took the new iron mine 9# coal briquette as the object of study by curve fitting method,and studied the effect of stress and deformation of coal body force under the action of seepage.The test results of coal body under the action of force deformation shows that,when the axial compression fixed,samples of the longitudtion strain increases with the increase of confining pressure,and ring strain with confining pressure decreases.The test results of stress and seepage of coal deformation show that when the axial pressure and confining pressure is constant,coal body longitudinal strain and transverse strain increase with the increase of pore pressure increases;confining pressure effects on the coal body deformation plays significant role than that of pore pressure.The effect of stress on the deformation of coal is significantly larger than that of seepage.It is important to guide the prevention and control of coal and gas outburst.关键词
渗流/煤体变形/围压/瓦斯抽采/瓦斯突出Key words
seepage/coal deformation/confining pressure/gas drainage/gas outburst分类
矿业与冶金引用本文复制引用
裴艳,冯东梅..应力及应力-渗流作用下煤体变形试验研究[J].辽宁工程技术大学学报（自然科学版）,2017,36(7):689-695,7.基金项目
国家自然科学基金(51274110 （）
51474121 （）
U1361211) （）
