河南理工大学学报（自然科学版）2018，Vol.37Issue(2)：36-43,73,9.DOI:10.16186/j.cnki.1673-9787.2018.02.006
神东侏罗纪砂岩微观结构对其力学性质及声波传播速度的影响
Influence of Jurassic sandstone microstructure on the mechanical properties and acoustic velocity in Shendong mining area
摘要
Abstract
In order to analyze the influence of Jurassic sandstone microstructure on its mechanical properties and acoustic velocity,the sandstones from Shendong mining area were studied by using polarizing microscope and rock mechanics test system.Acoustic velocity of sandstones was tested simultaneously.The quantitative correlations between macroscopic mechanical properties,acoustic velocity and sandstone microstructure were established on the basis of the mathematical statistics method.The results show that the mechanical properties become weak with the increase of clastic particle size and non-uniform coefficient of sandstones,i.e.,uniaxial compressive strength,elastic modulus and strain decrease accordingly.The alteration of Poisson's ratio is not significant and the acoustic velocity decreases correspondingly.By contrast,the correlation between uniaxial compressive strength and clastic particle size of sandstones in Jurassic coal measures is found be opposite to Carboniferous-Permian sandstones in the same type of rocks.关键词
神东矿区/砂岩微观结构/力学性质/声波速度Key words
Shendong mining area/sandstone microstructure/mechanical properties/acoustic velocity分类
天文与地球科学引用本文复制引用
陈江峰,王振康,岳洋,王开林,李回贵..神东侏罗纪砂岩微观结构对其力学性质及声波传播速度的影响[J].河南理工大学学报（自然科学版）,2018,37(2):36-43,73,9.基金项目
国家自然科学基金资助项目(U1261207) （U1261207）
