|本期目录/Table of Contents|

[1]谢文健,龚囱,刘勇锋,等.分级加载条件下红砂岩蠕变特性试验研究[J].中国安全生产科学技术,2017,13(6):34-39.[doi:10.11731/j.issn.1673-193x.2017.06.005]
　XIE Wenjian,GONG Cong,LIU Yongfeng,et al.Experimental study on creep characteristics of red sandstone under step loading[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(6):34-39.[doi:10.11731/j.issn.1673-193x.2017.06.005]
点击复制

分级加载条件下红砂岩蠕变特性试验研究
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年6期
页码:
34-39
栏目:
学术论著
出版日期:
2017-06-30

文章信息/Info

Title:
Experimental study on creep characteristics of red sandstone under step loading
文章编号:
1673-193X(2017)-06-0034-06
作者:
谢文健1; 龚囱1; 刘勇锋2; 赵奎1; 李海港3
1江西理工大学 资源与环境工程学院，江西 赣州 341000；2中国安全生产科学研究院，北京 100083；3. 江西省安全生产科学技术研究中心，江西 南昌 330000
Author(s):
XIE Wenjian1;  GONG Cong1;  LIU Yongfeng2;  ZHAO Kui1; LI Haigang3
1. School of Resources & Environment Engineering, Jiangxi University of Science and Technology, Ganzhou Jiangxi 341000, China; 2. China Academy of Safety Science and Technology, Beijing 100012, China； 3. Jiangxi Science and Technology Research Center for Work Safety, Nanchang Jiangxi 330000, China
关键词:
红砂岩; 损伤强度; 分级加载; 蠕变; 非定常西原模型
Keywords:
red sandstone;  damage strength;  step loading;  creep;  nonstationary Nishihara model
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2017.06.005
文献标志码:
A
摘要:
岩石的蠕变性质是引起工程岩体破坏的主要原因之一。通过进行分级加载蠕变试验，分析了红砂岩在不同加载应力条件下的蠕变特征。试验结果表明：在不同加载应力条件下，试件等速蠕变阶段应变速率与加载应力呈指数函数关系，并且当加载应力大于损伤强度σcd时，径向等速蠕变阶段应变速率大于轴向;同时，试件在破坏过程中存在加速蠕变阶段不明显的现象。根据蠕变破坏过程中黏滞系数的变化特点，将理想黏塑性体中的黏滞系数定义为时间的负指数函数，建立了一个非定常西原蠕变模型，该模型能较好反映红砂岩在单轴压缩条件下的蠕变特性。
Abstract:
The creep properties of rock is one of the main reasons that cause the failure of engineering rock mass. Through the step loading creep tests, the creep characteristics of red sandstone under different conditions of loading stress were analyzed. The results showed that the relationship between the strain rate and the loading stress during the steady creep stage of specimen can be described by exponential function, and the radial strain rate is larger than the axial strain rate when the loading stress is greater than the damage strength. At the same time, the accelerated creep stage may be not obvious during the failure process of specimen. According to the variation characteristics of viscosity coefficient during the creep failure process, the viscosity coefficient of the ideal viscoplastic body was defined as the negative exponential function of time, and a nonstationary Nishihara creep model was established, which can better reflect the creep characteristics of red sandstone under uniaxial compression.

参考文献/References:

［1］戎虎仁，白海波，王占盛. 不同温度后红砂岩力学性质及微观结构变化规律试验研究［J］. 岩土力学，2015，36（2）：463-469. RONG Huren, BAI Haibo, WANG Zhansheng. Experimental research on mechanical properties and microstructure change law of red sandstone after different temperatures［J］. Rock and Soil Mechanics, 2015,36(2):463-469.
［2］单仁亮，杨昊，郭志明，等. 负温饱水红砂岩三轴压缩强度强度特性试验研究［J］. 岩石力学与工程学报，2014，33（S2）：3657-3664 SHAN Renliang, YANG Hao, GUO Zhiming, et al. Experimental study of strength characters of saturated red sandstone on negative temperature under triaxial compression［J］. Chines Journal of Rock Mechanics and Engineering, 2014，33（S2）：3657-3664
［3］毛灵涛，袁则循，连秀云，等. 基于CT数字体相关法测量红砂岩单轴压缩内部三维应变场［J］. 岩石力学与工程学报，2015，34（1）：21-30 MAO Lingtao, YUAN Zexun, LIAN Xiuyun, et al. Measurement of 3D strain field in red stone sample under uniaxial compression with computer tomography and digital volume correlation method［J］. Chines Journal of Rock Mechanics and Engineering, 2015，34（1）：21-30
［4］刘晓明，熊力，刘建华，等. 基于能量耗散原理的红砂岩崩解机制研究［J］. 中南大学学报（自然科学版），2011，42（10）：3143-3149. LIU Xiaoming, XIONG Li, LIU Jianhua, et al. Slacking mechanism of red sandstone based on energy dissipation principle［J］ Journal of Central Sonth Universtiy (Science and Technology), 2011，42（10）：3143-3149.
［5］闻名，陈震，许金余，等. 不同含水率红砂岩静动态劈拉试验及细观分析［J］. 地下空间与工程学报，2017，13（1）：86-92 WEN Ming, CHEN Zhen, XU Jinyu, et al.Static-dynamic split tensile tests and micro analysis on red-sandstone with different moisture contents［J］. Chinese Journal of Underground Space and Engineering, 2017,13(1): 86-92
［6］Enuhye Kim, Hossein Changani. Effect of water saturation and loading rate on the mechanical properties of red and buff sandstones［J］. International Journal of Rock Mechanics & Mining Sciences, 2016,88:23-28
［7］张振华，孙钱程，李德忠，等. 周期性渗透压作用下红砂岩渗透特性试验研究［J］. 岩土工程学报，2015，37（5）：937-943 ZHANG Zhenghua, SUN Qiancheng, LI Dezhong, et al. Experimental study on permeability characteristics of red sandstone under cyclic seepage pressures［J］. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 937-943
［8］王军保，刘新荣，郭建强，等.盐岩蠕变特性及其非线性本构模型［J］.煤炭学报，2014，39（3）：445-451 WANG Junbao, LIU Xinrong, GUO Jianqiang, et al. Creep properties of salt rock and its nonlinear constitutive mode［J］. Journal of China Coal Society, 2014, 39(3):445-451
［9］张龙云，张强勇，李术才，等. 硬脆性岩石卸荷流变试验及长期强度研究［J］. 煤炭学报，2015，40（10）：2399-2407 ZHANG Longyun, ZHANG Qiangyong, LI Shucai, et al. Unloading rheological tests of hard brittle rock and its long-term strength analysis［J］. Journal of China Coal Society, 2015，40（10）：2399-2407
［10］刘诗杰，翟盛锐. 基于H-K体的矿柱流变顶板破坏分析［J］. 中国安全生产科学技术，2015，11（6）：25-30 LIU Shijie, ZHAI Shengrui. Study on roof failure by rheological property of pillars based on H-K body［J］. Journal of Safety Science and Technology, 2015,11(6): 25-26
［11］赵宝云，刘东燕，郑颖人，等. 红砂岩单轴压缩蠕变试验及模型研究［J］. 采矿与安全工程学报，2013，30（5）：744-747 ZHAO Baoyun, LIU Dongyan, ZHENG Yingren, et al. Uniaxial compressive creep test of red sandstone and its constitutive model［J］.Journal of Mining & Safety Engineering, 2013，30（5）：744-747
［12］沈明荣，谌洪菊. 红砂岩长期强度特性的试验研究［J］. 岩土力学，2011，32（11）：3301-3305 SHEN Mingrong, CHEN Hongju. Testing study of long-term strength characteristics of red sandstone［J］. Rock and Soil Mechanics, 2011,32(11): 3301-3305
［13］N. Brantut，M. J. Heap，P. G. Meredith，et al. Time-dependent cracking and brittle creep in crustal rocks：A review ［J］. Journal of Structural Geology， 2013，52：17-43
［14］M.J.Heap,P.Baud,P.G.Meredith,et al.Brittle creep in basalt and its application to time-dependent volcano deformation ［J］. Earth and Planetary Science Letters,2011,307(1-2):71-82

相似文献/References:

[1]宋宜猛,赵凯杰,杨小彬.单轴压缩条件下预制裂纹红砂岩试样声发射特征研究*[J].中国安全生产科学技术,2021,17(11):131.[doi:10.11731/j.issn.1673-193x.2021.11.020]
　SONG Yimeng,ZHAO Kaijie,YANG Xiaobin.Study on AE characteristics of red sandstone samples with prefabricated crack under uniaxial compression[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(6):131.[doi:10.11731/j.issn.1673-193x.2021.11.020]

备注/Memo

备注/Memo:
江西省青年科学基金项目（20171BAB216022）；江西省教育厅科学技术研究项目（GJJ150622）；江西省科技支撑计划基金项目（20143ACG70010）；江西理工大学博士启动基金项目（jxxjbs15007）
更新日期/Last Update: 2017-07-11