岩土力学Issue(5)：1334-1339,6.
温度对煤系泥岩力学特征影响的试验研究
Experimental study of mechanical characteristics of coal-serial mudstone under different temperatures
摘要
Abstract
Laboratory tests are made to study the mechanical properties of coal-serial mudstone under different temperatures by using the rock mechanics test system RMT-150B and high and low temperature environmental chamber GD-65/150. The effects of complete stress-strain curve, peak stress, peak strain, elastic modulus, deformation modulus and Poisson's ratios of mudstone at different temperatures are analyzed. The results show that, there are differences at different temperatures in mechanical properties of mudstone. As the temperature increases, peak stress and peak strain decrease in different amplitudes; peak stress decreases from 9.153 MPa in 25℃to 8.271 MPa in 55℃, and a 9.6 percent decline;peak strain decreases from 11.002×10-3 in 25℃to 8.249×10-3 in 55℃, and a 25.0 percent decline. Elastic modulus decreases gradually with the increasing temperature. Deformation modulus increases with the increasing temperature. Poisson's ratio decreases gradually with the increasing temperature; and the relation between various parameter variables and temperature is obtained. Research results provide a theoretical basis for the rock control in deep high temperature soft rock roadway.关键词
岩石力学/煤系泥岩/高温/力学特征/试验研究Key words
rock mechanics/coal-serial mudstone/high temperature/mechanical characteristics/experimental study分类
建筑与水利引用本文复制引用
查文华,宋新龙,武腾飞,李雪..温度对煤系泥岩力学特征影响的试验研究[J].岩土力学,2014,(5):1334-1339,6.基金项目
国家自然科学基金项目（No.51004002）；高等学校博士点新教师基金项目（No.20103415120001）；安徽省自然科学基金项目（No.1208085ME72）。 （）
