[1]宋战平,肖珂辉,杨腾添.渗透压力作用下灰岩单轴压缩变形特性研究[J].西安建筑科技大学学报(自然科学版),2019,51(05):649-653703.[doi:10.15986/j.1006-7930.2019.010.006]
　SONG Zhanping,XIAO Kehui,YANG Tengtian.Study on deformation characteristics of limestone under uniaxial compression considering seepage pressure[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(05):649-653703.[doi:10.15986/j.1006-7930.2019.010.006]
点击复制

渗透压力作用下灰岩单轴压缩变形特性研究()
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:
51
期数:
2019年05期
页码:
649-653703
栏目:
出版日期:
2019-12-05

文章信息/Info

Title:
Study on deformation characteristics of limestone under uniaxial compression considering seepage pressure
文章编号:
1006-7930(2019)05-0649-05
作者:
宋战平1; 2; 肖珂辉1; 2; 杨腾添1; 2
(1.西安建筑科技大学 土木工程学院,陕西 西安 710055; 2. 陕西省岩土与地下空间工程重点实验室,陕西 西安 710055)
Author(s):
SONG Zhanping1; 2; XIAO Kehui1; 2; YANG Tengtian1; 2
(1.School of Civil Engineering,Xi’an Univ. of Arch. & Tech.,Xi’an 710055,China; 2.Shaanxi key Laboratory of Geotechnical and Underground Space Engineering.,Xi’an 710055,China)
关键词:
单轴压缩;  渗透压力;  变形特性;  强度
Keywords:
uniaxial compression;  osmotic pressure;  deformation characteristics;  strength
分类号:
TU454
DOI:
10.15986/j.1006-7930.2019.010.006
文献标志码:
A
摘要:
为探究渗透压力对灰岩单轴压缩变形特性的影响,本研究采用自主研发的注水压力系统对标准灰岩试件在不同渗透压力条件下注水72 h,然后利用600 kN型微机控制电液伺服岩石刚性试验机对注水后的试件进行单轴压缩试验,记录岩石的变形特性,并利用声发射设备采集岩石加压过程中的AE特性.引入闭峰比和闭损比的概念以减小岩石初始裂缝对实验结果的影响,实验结果表明:在不同的渗透压力下,岩石的变形阶段明显不同; 且随着渗透压力的增加,岩石的各项力学特性均有不同程度的下降.
Abstract:
In order to reveal the effect of osmotic pressure on the uniaxial compression deformation characteristics of limestone,a self-developed water injection pressure system was used to inject water into standard limestone specimens for 72 h under different osmotic pressures.Then the uniaxial compression test of water-injected specimens is carried out by using 600 kN microcomputer controlled electro-hydraulic servo rock rigidity tester.The deformation characteristics of rock and AE characteristics were collected during pressure loading.To reduce the effect of initial cracks on experimental results,this paper introduce the concepts of RCP(Ratio of Closed stress to Peak stress)and RCD(Ratio of Closed stress to Damage stress).Results show that the deformation stages of rocks are obviously different under different osmotic pressures,and with the increase of osmotic pressure,the mechanical properties of rocks decrease to varying degrees.

参考文献/References:

[1] 曹文贵,赵明华,刘成学.岩石损伤统计强度理论研究[J].岩土工程学报,2004(6):820-823.CAO Wengui,ZHAO Minghua,LIU Chengxue. A study on damage statistical strength theory for rock [J]. Chinese Journal of Geotechnical Engineering,2004(6):820-823.
[2] 中国岩石力学与工程学会. 岩石力学与岩石工程学科发展报告[M]. 北京:中国科学技术出版社,2010.Chinese Society for Rock Mechanics and Engineering. Report on advances in rock mechanics and rock engineering[M]. Beijing:China Science and Technology Press,2010.
[3] ZHU W C, BMHNS O T. Simulating excavation damaged zone around a circular opening under hydromechanical conditions[J]. International Journal of Rock Mechanics and Mining Sciences,2008,45(5):815-830.
[4] WANG Ying. Railway tunneling and its environmental effects [A]//Beijing International Symposium on Land Reclamation. Beijing: China Coal Industry Publishing House, 2000. 661-665.
[5] SKEMPTON A W. Effective stress in soils [J]. Concrete and Suetion in Soils,1960, 2(1):4-16.
[6] 刘新荣,傅晏,郑颖人,等. 水岩相互作用对岩石劣化的影响研究[J]. 地下空间与工程学报,2012,8(1):77-82,88LIU Xinrong,FU Yan,ZHENG Yingren,et al. A review on deterioration of rock caused by water-rock interaction[J]. Chinese Journal of Underground Space and Engineering,2012,8(1):77-82,88.
[7] 仵彦卿,曹广祝,丁卫华. 砂岩渗透参数随渗透水压力变化的CT试验[J]. 岩土工程学报,2005,27(7):780-785.XU Yanqin,CAO Guangzhu,DING Weihua. CT test of sandstone permeability parameters variation with permeable water pressure[J]. Chinese Journal of Geotechnical Engineering,2005,27(7):780-785.
[8] TSUYOSHI I. Acoustic emission monitoring of hydraulic fracturing in laboratory and field[J]. Construction and Building Materials, 2001, 15: 283-295.
[9] 邢福东,朱珍德,刘汉龙,等. 高围压高水压作用下脆性岩石强度变形特性试验研究[J]. 河海大学学报(自然科学版),2004,32(2):184-187.XING Fudong,ZHU Zhende,LIU Hanlong,et al. Experimental study on strength and deformation characteristics of brittle rocks under high confining pressure and hydraulic pressure[J]. Journal of Hehai University(Natural Sciences),2004,32(2):184-187.
[10]宋勇军,雷胜友.干燥和饱水炭质板岩流变力学特性与模型研究[J].西安建筑科技大学学报(自然科学版),2016,48(1):95-100.SONG Yongjun,LEI Shengyou. Study on rheological mechanical properties and model of carbonaceous slates under dry and saturated states [J]. J. of Xi’an Univ. of Arch.&Tech.(Natural Sciences),2016,48(1):95-100.
[11]CAI M,KAISERA P K,TASAKAB Y,et al.. Generalized crack initiation and crack damage stress thresholds of brittle rock masses near underground excavations[J]. International Journal of Rock Mechanics & Mining Sciences,2004,41(5):833-847.
[12]LAN H,X, MARTIN C,D, HU B. Effect of heterogeneity of brittle rock on micromechanical extensile behavior during compression loading[J]. Journal of Geophysical Research,2010,115(B1):1-14.
[13]刘泉声,胡云华,刘滨. 基于试验的花岗岩渐进破坏本构模型研究[J]. 岩土力学,2009,30(2):289-296.LIU Quansheng,HU Yunhua,LIU Bin. Progressive damage constitutive models of granite based on experimental results[J]. Journal of Experimental Mechanics,2009,30(2):289-296.
[14]彭俊,蔡明,荣冠.裂纹闭合应力及其岩石微裂纹损伤评价[J].岩石力学与工程学报,2015,34(6):1091-1100PENG Jun, CAI Ming, RONG Guan. Stresses for crack closure and it application to assessing stress-induced micro-crack damage [J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(6):1091-1100.

备注/Memo

备注/Memo:
收稿日期:2018-11-07 修改稿日期:2019-09-23基金项目:国家自然科学基金资助项目(51578447); 住房和城乡建设部科学技术计划基金项目(2017-k4-032)第一作者:宋战平(1974-),男,教授,主要从事岩土工程领域的教学与科研工作.E-mail:songzhpyt@xauat.edu.cn
更新日期/Last Update: 2019-12-05