人工冻结斜井洛河组砂岩解冻后蠕变模型试验研究
Experimental study on creep failure mechanism of artificially frozen sandstone of Luohe Formation after thawing
-
摘要: 随着西部地区煤矿建设，多数斜井需穿越弱胶结富水洛河组砂岩地层，采用常规掘进方式存在巨大安全隐患，往往采用冻结法施工掘进；人工冻结解冻后富水洛河组砂岩具有显著的蠕变特性，对于斜井井筒的长期安全稳定影响明显；通过对不同冻结温度下解冻后洛河组砂岩进行单轴压缩蠕变力学试验，从而建立了更为简洁的砂岩非线性分数阶蠕变力学模型；构建了解冻后砂岩的分数阶蠕变力学模型，将试验数据与拟合曲线进行对比分析。结果表明：随着冻结温度的降低，解冻后洛河组砂岩的蠕变量增大，蠕变速率增大，非线性程度升高；非线性分数阶蠕变模型可以很好地模拟解冻后洛河组砂岩的蠕变过程，模型更为简单方便。Abstract: With the construction of coal mines in western China, most inclined shafts need to pass through the weakly cemented water-rich sandstone stratum of Luohe Formation, and there are huge safety risks in conventional tunneling, so the freezing tunneling method is often adopted. After artificial freezing and thawing, the water-rich sandstone of Luohe Formation has significant creep characteristics, which has obvious influence on long-term safety and stability of inclined shaft. Based on uniaxial compression creep mechanics tests of defrosted sandstone of Luohe Formation at different freezing temperatures, a more concise nonlinear fractional order creep mechanics model of sandstone was established; the fractional creep mechanical model of defrosted sandstone is constructed, and test data and fitting curves are analyzed through comparison. The results show that: with the decrease of freezing temperature, the creep variable, creep rate and nonlinearity of sandstone in Luohe Formation increase after thawing, and the nonlinear fractional creep model can well simulate the creep process of defrosted Luohe Formation sandstone, and the model is simple and convenient.
-
Keywords:
- Luohe Formation sandstone /
- freezing method /
- freezing temperature /
- creep mechanics /
- creep model.
-
-
[1] 李宁，程国栋，谢定义．西部大开发中的岩土力学问题[J]．岩土工程学报，2001，23（3）：268－272. LI Ning, CHENG Guodong, XIE Dingyi. Geomechanics development in civil construction in Western China[J]. Chinese Journal of Geotechnical Engineering, 2001, 23（3）: 268-272.
[2] 杨维好．十年来中国冻结法凿井技术的发展与展望[Ｃ]//中国煤炭学会成立五十周年高层学术论坛论文集．北京：中国煤炭学会，2012：190－196. [3] 杨更社，申艳军，贾海梁，等．冻融环境下岩体损伤力学特性多尺度研究及进展[J]．岩石力学与工程学报，2018，37（3）：545－563. YANG Gengshe, SHEN Yanjun, JIA Hailiang, et al. Research progress and tendency in characteristics of multi-scale damage mechanics of rock under freezing-thawing[J]. Chinese Journal of Rock Mechanics and Engineering, 2018，37（3）: 545-563.
[4] Liu Y Z, Cai Y T, Huang S B, et al. Effect of water saturation on uniaxial compressive strength and damage degree of clay-bearing sandstone under freeze-thaw[J]. Bulletin of Engineering Geology and the Environment, 2020, 79: 2021-2036. [5] Li Y S, Xia C C. Time-dependent tests on intact rocks in uniaxial compression[J]. International Journal of Rock Mechanics and Mining Sciences, 2000, 37（3）: 467. [6] Brijes Mishra, Priyesh Verma. Uniaxial and triaxial single and multistage creep tests on coal-measure shale rocks[J]. International Journal of Coal Geology, 2015, 27（12）: 55-65. [7] 陈宗基，康文法，黄杰藩，等．岩石的封闭应力、蠕变和扩容及本构方程[J]．岩石力学与工程学报，1991，10（4）：299－312. CHEN Zongji, KANG Wenfa, HUANG Jiefan, et al. On the locked in stresses, creep and dilatancy of rock and constitutive equations[J]. Chinese Journal of Rock Mechanics and Engineering, 1991, 10（4）: 299-312.
[8] 梁冰，张涛，王俊光，等．片麻岩蠕变特性试验研究[J]．实验力学，2018，33（3）：451－460. LIANG Bing, ZHANG Tao, WANG Junguang, et al. Experimental study of gneiss creep properties[J]. Journal of Experimental Mechanics, 2018, 33（3）: 451-460.
[9] 李晓照，班力壬，戚承志．高渗透压脆性岩石蠕变宏－细观力学模型研究[J]．岩土力学，2020，41（12）：3987－3995. LI Xiaozhao, BAN Liren, QI Chengzhi. Study on the mechanical model of macro-mecro creep under high seepage pressure in brittle rocks[J]. Rock and Soil Mechanics, 2020, 41（12）: 3987-3995.
[10] 杨秀荣，姜谙男，王善勇，等．冻融循环条件下片麻岩蠕变特性试验研究[J]．岩土力学，2019，40（11）：4331－4340. YANG Xiurong, JIANG Annan, WANG Shanyong, et al. Experimental study on creep characteristics of gneiss under freeze-thaw cycles[J]. Rock and Soil Mechanics, 2019, 40（11）: 4331-4340.
[11] 韩超，庞德朋，李德建．砂岩分级加卸载蠕变试验过程能量演化分析[J]．岩土力学，2020，41（4）：1179. HAN Chao, PANG Depeng, LI Dejian. Analysis of energy evolution during the step loading and unloading creep experiments of sandstone[J]. Rock and Soil Mechanics, 2020, 41（4）: 1179.
[12] 陈卫忠，李翻翻，雷江，等．热－水－力耦合条件下黏土岩蠕变特性研究[J]．岩土力学，2020，41（2）：379. CHEN Weizhong, LI Fanfan, LEI Jiang, et al. Study on creep characteristics of claystone under thermo-hydro-mechanical coupling[J]. Rock and Soil Mechanics, 2020, 41（2）: 379-388.
[13] 张峰瑞，姜谙男，江宗斌，等．化学腐蚀－冻融综合作用下岩石损伤蠕变特性试验研究[J]．岩土力学，2019，40（10）：3879－3888. ZHANG Fengrui, JIANG Annan, JIANG Zongbin, et al. Experimental study of damage and creep property of rock under coupled chemical corrosion and freeze-thaw cycle[J]. Rock and Soil Mechanics, 2019, 40（10）: 3879-3888.
[14] 单仁亮，宋立伟，李东阳，等．冻结红砂岩非线性蠕变模型的研究[J]．岩土力学，2014，35（6）：1541. SHAN Renliang, SONG Liwei, LI Dongyang, et al. Study of nonlinear creep model of frozen red sandstone[J]. Rock and Soil Mechanics, 2014, 35（6）: 1541.
[15] 张强勇，张龙云，向文，等．考虑温度效应的片麻状花岗岩三轴蠕变试验研究[J]．岩土力学，2017，38（9）：2507－2514. ZHANG Qiangyong, ZHANG Longyun, XIANG Wen, et al. Triaxial creep test of gneissic granite considering thermal effect[J]. Rock and Soil Mechanics, 2017, 38（9）: 2507-2514.
[16] 陈国庆，郭帆，王剑超，等．冻融后石英砂岩三轴蠕变特性试验研究[J]．岩土力学，2017，38（Ｓ1）：203－210. CHEN Guoqing, GUO Fan, WANG Jianchao, et al. Experimental study of creep properties of quartz sandstone after freezing-thawing cycles[J]. Rock and Soil Mechanics, 2017, 38（S1）: 203-210.
[17] 李德建，刘校麟，韩超．基于等效黏弹性的变阶分数阶岩石损伤蠕变模型[J]．岩土力学，2020，41（12）：3831－3839. LI Dejian, LIU Xiaolin, HAN Chao. Variable-order fractional damage creep model based on equivalent viscoelasticity for rock[J]. Rock and Soil Mechanics, 2020, 41（12）: 3831-3839.
[18] 刘家顺，靖洪文，孟波，等．含水条件下弱胶结软岩蠕变特性及分数阶蠕变模型研究[J]．岩土力学，2020， 41（8）：2609. LIU Jiashun, JING Hongwen, MENG Bo, et al. Research on the effect of moisture content on the creep behavior of weakly cemented soft rock and its fractional-order model[J]. Rock and Soil Mechanics, 2020, 41（8）: 2609.
[19] 魏尧，杨更社，申艳军，等．白垩系饱和冻结砂岩蠕变试验及本构模型研究[J]．岩土力学，2020，41（8）：2636－2646. WEI Yao, YANG Gengshe, SHEN Yanjun, et al. Creep test and constitutive model of cretaceous saturated frozen sandstone[J]. Rock and Soil Mechanics, 2020, 41（8）: 2636-2646.
[20] 李列列，管俊峰，肖明砾，等．一种横观各向同性岩体蠕变模型[J]．岩土力学，2020，41（9）：2922－2930. LI Lielie, GUAN Junfeng, XIAO Mingli, et al. A creep constitutive model for transversely isotropic rocks[J]. Rock and Soil Mechanics, 2020, 41（9）: 2922-2930.
[21] 杨秀荣，姜谙男，蒋宗斌．含水状态下软岩蠕变试验及损伤模型研究[J]．岩土力学，2018，39（Ｓ1）：167. ZHANG Xiurong, JIANG Annan, JIANG Zongbin. Creep test and damage model of soft rock under water containing condition[J]. Rock and Soil Mechanics, 2018, 39（S1）: 167.
[22] 曹煜，曹平．基于Ｂｕｒｇｅｒｓ模型考虑损伤的非定常岩石蠕变模型[J]．岩土力学，2016，37（Ｓ2）：369－374. CAO Yu, CAO Ping. Creep test and damage model of soft rock under water containing condition[J]. Rock and Soil Mechanics, 2016, 37（S2）: 369-374.
[23] Tang H, Wang D P, Huang R Q, et al. A new rock creep model based on variable-order fractional derivatives and continuum damage mechanics[J]. Bulletin of Engineering Geology and the Environmen, 2018, 77: 375-383. [24] 周宏伟，王春萍，段志强，等．基于分数阶导数的盐岩流变本构模型[J]．中国科学：物理学力学天文学，2012，42（3）：310－318. ZHOU Hongwei, WANG Chunping, DUAN Zhiqiang, et al. Time-based fractional derivative approach to creep constitutive model of salt rock[J]. SCIENTIA SINICA Physica, Mechanica & Astronomica, 2012, 42（3）: 310-318.
[25] 周宏伟，王春萍，丁靖洋，等．盐岩流变特性及盐腔长期稳定性研究进展[J]．力学与实践，2011，33（5）：1. ZHOU Hongwei, WANG Chunping, DING Jingyang, et al. Developments in researches on time-dependent behavior of salt rock and long-term stability of salt cavity[J]. Mechanics in Engineering, 2011, 33（5）: 1.
[26] 宋勇军，雷胜友．基于分数阶微积分的岩石非线性蠕变损伤力学模型[J]．地下空间与工程学报，2013，9（1）：91－95. SONG Yongjun, LEI Shengyou. Mechanical model of rock nonlinear creep damage based on fractional calculus[J]. Chinese Journal of Underground Space and Engineering, 2013, 9（1）: 91-95.
[27] 苏腾，周宏伟，赵家巍，等．基于变阶分数阶导数的岩石蠕变模型[J]．岩石力学与工程学报，2019，38（7）：1355－1363. SU Teng, ZHOU Hongwei, ZHAO Jiawei, et al. A creep model of rock based on variable order fractional derivative[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38（7）: 1355-1363.
-
期刊类型引用(2)
1. 杨进，谢雄刚，丁锐，曹文梁，熊欣标. 高温场下矿井煤层钻孔瓦斯抽排效果研究. 煤矿安全. 2024(07): 9-14 . 
本站查看
2. 周银波，李晓丽，李晗晟，王佳乐，毛淑星，王世杰. 煤体吸附变形对3种气体渗透率演化的影响. 煤矿安全. 2021(11): 16-21 . 本站查看
其他类型引用(7)
计量
- 文章访问数: 42
- HTML全文浏览量: 5
- PDF下载量: 22
- 被引次数: 9
下载:
