[1]陈涛,何伟.冻融循环层理砂岩破坏模式试验研究[J].西安建筑科技大学学报(自然科学版),2020,52(01):79-84.[doi:10.15986j.1006-7930.2020.01.011]
　CHEN Tao,HE Wei.Research on failure modes of stratified sandstone under freeze-thaw cycling[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2020,52(01):79-84.[doi:10.15986j.1006-7930.2020.01.011]
点击复制

冻融循环层理砂岩破坏模式试验研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
52
期数:
2020年01期
页码:
79-84
栏目:
出版日期:
2020-03-31

文章信息/Info

Title:
Research on failure modes of stratified sandstone under freeze-thaw cycling
文章编号:
1006-7930(2020)01-0079-06
作者:
陈涛1; 何伟2
(1.黄河科技学院 建筑工程学院,河南 郑州 450063; 2.华北水利水电大学 土木交通学院,河南 郑州 450045)
Author(s):
CHEN Tao1; HE Wei 2
(1.School of Civil Engineering, Huanghe Science & Technology College,Zhengzhou 450063,China; 2.School of Civil and Transportation Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045,China)
关键词:
岩石力学;  层理砂岩;  冻融循环;  各向异性;  破坏模式
Keywords:
rock mechanics;  stratified sandstone;  freeze-thaw cycle;  failure modes
分类号:
TU451
DOI:
10.15986j.1006-7930.2020.01.011
文献标志码:
A
摘要:
在西部高寒地区,冻融循环作用对岩石路基稳定性具有不可忽视的影响,易引发一系列的工程地质问题.为研究冻融循环环境下各向异性层理砂岩的损伤特性,选取路基中典型垂直、平行层理砂岩试样开展冻融循环试验研究,基于电液伺服压力试验机进行单轴压缩试验,以应力 - 应变曲线、力学参数和压缩破坏形态为依据,探究了冻融循环损伤后层理砂岩强度、变形特征的演化规律及破坏模式.研究结果表明:随着冻融次数的增加,垂直、平行层理试样呈现出向右拉伸,向下压缩的应力 - 应变曲线; 垂直层理砂岩试样峰值点下降路径平缓,而平行层理砂岩试样则沿阶梯状路径下降; 冻融损伤累积减弱了破坏模式的各向异性特征,随冻融次数的增加,垂直层理砂岩试样裂缝与加载方向趋于平行,平行层理砂岩试样则始终表现为沿层理的劈裂破坏.
Abstract:
In the western alpine region, freeze-thaw cycling can not be ignored on the stability of rock roadbed, which can cause a series of engineering geological problems easily. To study the damage properties of anisotropy stratified sandstone under freeze-thaw cycling, the freeze-thaw cycle tests were carried out on the vertical and parallel stratified sandstone samples on the subgrade, and the differences in the freeze-thaw damage of the two inclinations were analyzed. Single-axis compression testing was carried out based on an electro-hydraulic servo pressure tester. Based on the stress-strain curve, mechanical parameters and compression and failure modes, the evolution law of the sandstone strength and deformation characteristics of the sandstone after the freeze-thaw cycle was explored, research indicated: With the increase of freezing and thawing times, the stress-strain curves of the two kinds of bedding samples were as follows: Stretch to the right and compress down; The descending path of the peak point of the vertical stratified sandstone samples was gentle, while the parallel stratified sandstone samples descends along the stepped path; The accumulation of freeze-thaw damage weakened the anisotropic characteristics of the failure mode. With the increase of freezing and thawing times, the cracks of the vertical stratified sandstone samples were gradually parallel to the loading direction, and the parallel stratified sandstone samples was always shown as splitting damage along the bedding direction.

参考文献/References:

[1]陈卫忠,谭贤君,于洪丹,等. 低温及冻融环境下岩体热、水、力特性研究进展与思考[J]. 岩石力学与工程学报,2011, 30(7): 1318-1336. CHEN Weizhong, TCAN Xianjun, YU Hongdan, et al. Advance and review on thermo-hydro-mechanical characteristics of rock mass under condition of low temperature and freeze-thaw cycles[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(7): 1318-1336.
[2]CHEN T C,YEUNG M R, MORIC N. Effect of water saturation on deterioration of welded tuff due to freeze-thaw action [J]. Cold Regions Science and Technology, 2004, 38(1):127-136.
[3]徐光苗,刘泉声. 岩石冻融破坏机理分析及冻融力学试验研究[J]. 岩石力学与工程学报,2005, 24(17): 3076-3082.XU Guangmiao, LIU Quansheng. Analysis of mechanism of rock failure due to freezing-thawing cycling and mechanical testing study on frozen-thawed rocks[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(17): 3076-3082.
[4]张继周,缪林昌,杨振峰. 冻融条件卜岩石损伤劣化机制和力学特性研究[J]. 岩石力学与工程学报,2008, 27(8): 1688-1694.ZHANG Jizhou, MIAO Linchang, YANG Zhenfeng. Research on rock degradation and deterioration mechanisms and mechanical characteristics under cyclic freezing-thawing[J]. Chinese Journal of Rock Mechanics and Engineering,2008,27(8): 1688-1694.
[5]贾海梁,项伟,谭龙等. 砂岩冻融损伤机制的理论分析和试验验证[J]. 岩石力学与工程学报,2016, 35(5):879-895.JIA Hailiang,XIANG Wei,TAN Long, et al. Theoretical analysis and experimental verifications of frost damage mechanism of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering, 2016, 35(5):879-895.
[6]王章琼,晏鄂川,黄祥嘉,等. 鄂西北片岩变形参数各向异性及水敏性研究[J]. 岩石力学与工程学报,2014,33(2):3968-3972. WANG Zhangqiong,YAN Echuan,HUANG Xiangjia, et al. Anisotropic and water sensitivity properties study of schist deformation parameters in northwest of hubei province[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(2):3968-3972.
[7]孙旭曙,李建林,王乐华,等. 单一预制节理试件各向异性力学特性试验研究[J]. 岩土力学,2014,35(1):/29-41. SUN Xushu,LI Jianlin,WANG Lehua, et al. Experimental research on anisotropic mechanical characteristic of samples with single prefabricated joint[J]. Rock and Soil Mechanics,2014,35(1):29-41.
[8]陈天宇,冯夏庭,张希巍,等. 黑色页岩力学特性及各向异性特性试验研究[J]. 岩石力学与工程学报,2014,33(9):1772-1779. CHEN Tianyu,FENG Xiating, ZHANG Xiwei,et al. Experimental study on mechanical and anisotropic properties of black shale[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(9):1772-1779.
[9]肖维民,邓荣贵,付小敏,等. 单轴压缩条件下柱状节理岩体变形和强度各向异性模型试验研究[J]. 岩石力学与工程学报,2014,33(5):957-963. XIAO Weimin,DENG Ronggui,FU Xiaomin, et al. Model experiments on deformation and strength anisotropy of columnar jointed rock masses under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(5):957-963.
[10]衡帅,杨春和,郭印同,等. 层理对页岩水力裂缝扩展的影响研究[J]. 岩石力学与工程学报,2015,34(2):228-237. HENG Shuai, YANG Chunhel. GUO Yintong, et al. Influence of beddingplanes ou hydraulic fracture propagation in shale formation [J]. Chinese Jouranel of Rocle Mechanc cs and Engineeruy.2015,34(2):228-237.
[11]HENG Shuai,YANG Chunhel,GUO Yintong, et al. Influence of bedding planes on hydraulic fracture propagation in shale formations[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(2):228-237.
[12]中华人民共和国住房和城市建设部.工程岩体试验方法标准:GB/T 50266-2013[S]. 北京,中国计划出版社,2013.Ministry of Housing and Urbom Rural Development of the People’s Repulic of China. Engineering rocle mass fest method: GB/T 50266-2013[S].Beijing: China Planning Press,2013.
[13]郑广辉,许金余,王鹏等.冻融循环作用下层理砂岩物理特性及劣化模型[J]. 岩土力学,2019(2):632-641.ZHENG Guang-hui,XU Jinyu,WANG Peng,et al. Physical characteristics and degradation model of stratified sandstone under freeze-thaw cycling [J]. Rock and Soil Mechanics 2019(2): 632-641.
[14]BROWN E T. Rock characterization, testing & monitoring: ISRM suggested methods[M]. London: Pergamon Press, Oxford, 1981, 81-221.
[15]张帆,盛谦,朱泽奇,等. 三峡花岗岩峰后力学特性及应变软化模型研究[J]. 岩石力学与工程学报,2008,27(1):2651-2655. ZHANG Fan, SHENG Qian, ZHU Zeqi, et al. Study on post-peak mechanical behaviour and strain-softening model of three gorges granite[J]. Chinese Journal of Rock Mechanics and Engineering,2008,27(1):2651-2655.
[16]SAROGLOU H, TSIAMBAOS G. A modified Hoek-Brown failure criterion for anisotropic intact rock[J]. International Journal of Rock Mechanics and Mining Sciences,2008,45(2): 223-234.
[17]张慧梅,张蒙军,谢祥妙,等. 冻融循环条件下红砂岩物理力学特性试验研究[J]. 太原理工大学学报,2015,46(1):69-74. ZHANG Huimei,ZHANG Mengjun,XIE Xiangmiao,The experimental study on the physical and mechanical properties of red sandstone under the action of freeze-thaw cycles[J]. Journal of Taiyuan University of Technology,2015,46(1):69-74.
[18]牛双建,靖洪文,梁军起,等. 不同加载路径下砂岩破坏模式试验研究[J]. 岩石力学与工程学报,2011,30(2):3968-3974. NIU Shuangjian,JING Hongwen,LIANG Junqi, et al. Experimental study of failure mode of sandstone under different loading paths[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(2):3968-3974.

相似文献/References:

[1]康亚明,贾延,罗玉财,等.三轴压缩时岩石破裂面方位角理论值与实验值研究[J].西安建筑科技大学学报(自然科学版),2017,49(05):665.[doi:10.15986/j.1006-7930.2017.05.008]
　KANG Yaming,JIA Yan,LUO Yucai,et al.Research on the heoretical and experimental value of azimuth angle of the fracture surface for the rock subjected to triaxial Compression[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(01):665.[doi:10.15986/j.1006-7930.2017.05.008]

备注/Memo

备注/Memo:
收稿日期:2019-03-06修改稿日期:2020-02-20基金项目:河南省民办高校土木工程品牌专业建设资助项目(ZLG201702); 河南省科技攻关项目(182102310890).第一作者:陈涛(1979-),男,副教授,博士,主要从事岩土工程方面的研究.E-mail:zzct1979@126.com
更新日期/Last Update: 2020-04-25