不同温度条件下煤系砂质泥岩力学特征试验研究

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Abstract Laboratory tests were carried out to study the mechanical properties of coal-serial sandy mudstone under the temperature from 25℃ to 55 ℃ using the test system of rock mechanics RMT–150B and the temperature chamber GD–65/150. The complete stress-strain curve，the peak stress，the peak strain，the elastic modulus and the deformation modulus of the sandy mudstone under investigation were affected by the temperature conditions. As the temperature increases，the peak stress and the peak strain decrease gradually，but the peak stress and the peak strain decrease with a different values depending on whether the temperature is lower or higher than 40 ℃. The peak stress decreases 22.1% if the temperature is between 25 ℃ to 40 ℃ and decreases 4.3% between 40 ℃ to 55 ℃；The peak strain decreases 12.9% if the temperature is between is between 25 ℃ to 40 ℃ and decreases 29.9% between 40 ℃ to 55℃. The elastic modulus and the deformation modulus both decrease linearly with the increasing of temperature. The results are useful for the efficiency and safety of deep coal mining.

Key words： rock mechanics coal-serial sandy mudstone different temperatures uniaxial compression mechanical characteristics

Received: 18 November 2013

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https://rockmech.whrsm.ac.cn/EN/Y2014/V33/I4/809

[1]	王绳祖. 高温高压岩石力学——历史、现状、展望[J]. 地球物理学进展，1995，10(4)：1-31.(WANG Shengzu. High-temperature/ high-pressure rock mechanics：history，state-of-art and prospect[J]. Progress in Geophysics，1995，10(4)：1-31.(in Chinese))
[2]	吴刚，王德咏，翟松韬，等. 高温下大理岩力学性质的试验研究[J]. 岩石力学与工程学报，2012，31(6)：1 237-1 244.(WU Gang，WANG Deyong，ZHAI Songtao，et al. Test research on mechanical properties of marble under high temperature[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 237-1 244.(in Chinese))
[3]	李夕兵，尹土兵，周子龙，等. 温压耦合作用下的粉砂岩动态力学特性试验研究[J]. 岩石力学与工程学报，2010，29(12)：2 377-2 384. (LI Xibing，YIN Tubing，ZHOU Zilong，et al. Study of dynamic properties of siltstone under coupling effects of temperature and pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(12)：2 377-2 384.(in Chinese))
[4]	左建平，周宏伟，刘瑜杰. 不同温度下砂岩三点弯曲破坏的特征参量研究[J]. 岩石力学与工程学报，2010，29(4)：705-712.(ZUO Jianping，ZHOU Hongwei，LIU Yujie. Research on characteristic parameters of sandstone three-point bending failure under different temperatures[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(4)：705-712.(in Chinese))
[5]	张志镇，高峰，徐小丽. 花岗岩力学特性的温度效应试验研究[J]. 岩土力学，2011，32(8)：2 346-2 352.(ZHANG Zhizhen，GAO Feng，XU Xiaoli. Experimental study of temperature effect of mechanical properties of granites[J]. Rock and Soil Mechanics，2011，32(8)：2 346-2 352.(in Chinese))
[6]	尹土兵，李夕兵，殷志强，等. 高温后砂岩静、动态力学特性研究与比较[J]. 岩石力学与工程学报，2012，31(2)：273-279.(YIN Tubing，LI Xibing，YIN Zhiqiang，et al. Study and comparison of mechanical properties of sandstone under static and dynamic loading after high temperature[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：273-279.(in Chinese))
[7]	苏承东，李怀珍，张盛，等. 应变速率对大理岩力学特性影响的试验研究[J]. 岩石力学与工程学报，2013，32(5)：943-950.(SU Chengdong，LI Huaizhen，ZHANG Sheng，et al. Experimental investigation on effect of strain rate on mechanical characteristics of marble[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(5)：943-950.(in Chinese))
[8]	谢和平. 深部开采基础理论与工程实践[M]. 北京：科学出版社，2006：57-65.(XIE Heping. Deep mining basic theory and engineering practice[M]. Beijing：Science Press，2006：57-65.(in Chinese)) " target="_blank">
[9]	郤保平，赵阳升，万志军，等. 热力耦合作用下花岗岩流变模型的本构关系研究[J]. 岩石力学与工程学报，2009，28(5)：956-967.(XI Baoping，ZHAO Yangsheng，WAN Zhijun，et al. Study of constitutive equation of granite rheological model with thermo-mechanical coupling effects[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(5)：956-967.(in Chinese))
[10]	吴刚，滕念管，王宇. 高温后石灰岩的物理力学特性研究[J]. 岩土工程学报，2011，33(2)：259-264.(WU Gang，TENG Nianguan，WANG Yu. Physical and mechanical characteristics of limestone after high temperature[J]. Chinese Journal of Geotechnical Engineering， 2011，33(2)：259-264.(in Chinese))
[11]	何满潮. 深部开采工程岩石力学的现状及其展望[C]// 中国岩石力学与工程学会编. 第八次全国岩石力学与工程学术大会论文集. 北京：科学出版社，2004：88-94.(HE Manchao. Present situation and prospect of rock mechanics in deep mining engineering[C]// Chinese Society for Rock Mechanics and Engineering ed. National Rock of the 8th Mechanics and Engineering Conference. Beijing：Science Press，2004：88-94.(in Chinese) " target="_blank">
[12]	孟召平，彭苏萍，傅继彤. 含煤岩系岩石力学性质控制因素探讨[J]. 岩石力学与工程学报，2002，21(1)：102-106.(MENG Zhaoping，PENG Supin，FU Jitong. Study on control factors of rock mechanics properties of coal-bearing formation[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(1)：102-106.(in Chinese))
[13]	吕晓涛. 深厚富水基岩井筒冻结壁砂质泥岩力学特性试验研究[硕士学位论文][D]. 西安：西安科技大学，2011.(LU Jitao. Experimental study on the sandy mudstone mechanical properties for frozen shaft wall in deep thick water-rich bedrocks[M. S. Thesis][D]. Xi'an：Xi?an University of Science and Technology，2011.(in Chinese)) " target="_blank">