巫斌伟

• 1:宁夏煤炭勘察工程有限公司

摘要(Abstract)：

为了解地下煤火对煤裂隙孔隙的影响，将压汞法（MIP）和分形计算相结合，研究高温处理下的煤孔隙裂隙发展的规律并计算分维数，分析煤孔隙裂隙发展与分维数之间的关系。结果表明200℃高温处理的煤样（C200）总孔体积（0.171 5 mL/g）大于400℃高温处理后的煤样（C400）总孔体积（0.120 9 mL/g），均大于原煤的0.113 5 mL/g，孔体积增加主要是中孔和大孔，C200中孔和大孔体积占比为70.15%以及C400占比59.97%。MIP分维数随温度的升高呈现降低的趋势，温度越高煤样贯通性越好，C200和C400孔体积和三维分维数的变化呈现相反的趋势与煤基质在不同温度下受力不同有关。温度越高分维数越小，裂隙孔隙的贯通程度越好，煤的内部微观结构不同尺寸的分布相对均匀。

关键词(KeyWords)： 压汞法(MIP);分维数;孔隙裂隙结构;分形特征

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 巫斌伟

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