|
|
|
| Experimental study on the regularity of radon release from marble under triaxial compression |
| LI Lingyu1，2，ZHANG Chuanqing1，2，CUI Guojian1，2，ZHOU Hui1，2，GAO Yang1，2，HU Dawei1，2，LU Jingjing1，2 |
| (1. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan，Hubei 430071，China；2. University of Chinese Academy of Sciences，Beijing 100049，China) |
|
|
|
|
Abstract Radon is harmful in the development and utilization of underground space，and it has an important influence on the deep dark matter experiment. Studying the regularity of radon release during underground excavation is the basis of solving radon pollution problems. To study the influence of marble fracture mode on radon release，triaxial compression and radon release tests of marble specimens under different confining pressures were carried out by the self-designed rock triaxial compression radon release test system，and the relationship between Failure Approach Index and accumulative radon concentration was discussed. The results show that significant differences exist in the characteristics of radon release from marble samples at different loading stages under triaxial compression，showing a trend of increasing firstly，then decreasing slightly，next increasing sharply to the peak release，and finally dropping to a lower level. The initial radon emission gradually increases with the increase of the confining pressure，while the peak radon emission gradually decreases with the increase of the confining pressure which is related to the failure mode of rock under different confining pressures. It is found that there is a correlation between Failure Approach Index and accumulative radon concentration by fitting the experimental data，and the change trend of radon emission can be predicted by the failure approach index curve. It is of great significance to reveal the law of radon release in rock for the design of radon discharge/radon isolation.
|
|
|
|
|
|
| [1] 严 俊. 砂岩在单轴压力下氡析出量的实验探究[硕士学位论文][D]. 成都：成都理工大学，2014.(YAN Jun. An experimental study of sandstone radon in precipitates quantity under the axial pressure[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2014.(in Chinese))
[2] 张 炜，张东升，马立强，等. 一种氡气地表探测覆岩采动裂隙综合试验系统研制与应用[J]. 岩石力学与工程学报，2011，30(12)：2 531–2 539.(ZHANG Wei，ZHANG Dongsheng，MA Liqiang，et al. Development of a comprehensive test system for detecting mining-induced fractures in overlying strata on surface with radon and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(12)：2 531–2 539.(in Chinese))
[3] 吕汉江. 岩石材料破坏过程中的氡射气变化特征[J]. 应用基础与工程科学学报，2014，22(1)：45–52.(LV Hanjiang. Rn variation characteristics of rock material along rock failure progress[J]. Journal of Basic Science and Engineering，2014，22(1)：45–52.(in Chinese))
[4] 徐立鹏. 单轴压力下花岗岩氡气析出量与扩散迁移的实验研究[硕士学位论文][D]. 成都：成都理工大学，2013.(XU Lipeng. An experimental study of granite radon in precipitates quantity and diffusion transfer under axial pressure[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2013.(in Chinese))
[5] 王曙光，王春艳，李 茹. 氡及其迁移理论的发展概述[J]. 西部探矿工程，2012，24(11)：171–173.(WANG Shuguang，WANG Chunyan，LI Ru. Review of the development of theories on radon and its transport[J]. West-China Exploration Engineering，2012，24(11)：171–173.(in Chinese))
[6] 韩学辉，王桂香. 氡法监测地震的理想曲线模型探讨[J]. 太原理工大学学报，2000，(1)：101–103.(HAN Xuehui，WANG Guixiang. Theideal curve model on earthquake prediction by radon monitoring[J]. Journal of Taiyuan University of Technology，2000，(1)：101–103.(in Chinese))
[7] 范树全，高清武. 氡预报地震的实验研究[J]. 地震地质，1982，(1)：45–56.(FAN Shuquan，GAO Qingwu. Experimental study on radon earthquake prediction[J]. Seismology and Geology，1982，(1)：45–56.(in Chinese))
[8] HOLUB R F，BRADY B T. The effect of stress on radon emanation from rock[J]. Journal of Geophysical Research，1981，86(NB3)：1 776–1 784.
[9] 罗光伟，石锡忠，王基华. 单轴压力下样品破裂过程中几种化学参数变化的实验结果[J]. 地球物理学报，1981，24(1)：117–122.(LUO Guangwei，SHI Zhongxi，WANG Jihua. Experiment results of the variations of several kinds of chemical parameters in process of specimen rupture under uniaxial compression[J]. Chinese Journal of Geophysics，1981，24(1)：117–122.(in Chinese))
[10] MOLLO S，TUCCIMEI P，HEAP M J，et al. Increase in radon emission due to rock failure：An experimental study[J]. Geophysical Research Letters，2011，38：L14304.
[11] KATSUAKI K，TOHRU Y，KENTA S，et al. Controls on radon emission from granite as evidenced by compression testing to failure[J]. Geophysical Journal International，2015，203(1)：428–436.
[12] 邹功江，葛良全，赵剑锟，等. 岩石氡析出的瞬态响应[J]. 成都理工大学学报：自然科学版，2015，42(3)：372–376.(ZOU Gongjiang，GE Liangquan，ZHAO Jiankun，et al. Research for radon transient response[J]. Journal of Chengdu University of Technology：Science and Technology，2015，42(3)：372–376.(in Chinese))
[13] ZHANG W. Radon release from underground strata to the surface and uniaxial compressive test of rock samples[J]. Acta Geodynamica et Geomaterialia，2016，13(4)：407–416.
[14] 魏建平，姚邦华，王登科，等. 煤岩单轴压缩氡析出特性试验研究[J]. 采矿与安全工程学报，2017，34(4)：810–816.(WEI Jianping，YAO Banghua，WANG Dengke，et al. Experimental study on the characteristics of radon emission from coal and rock under uniaxial compression[J]. Journal of Mining and Safety Engineering，2017，34(4)：810–816.(in Chinese))
[15] GRIAULT F，ALEXANDRE S， PILI é. Transient radon signals driven by fluid pressure pulse，micro-crack closure，and failure during granite deformation experiments[J]. Earth and Planetary Science Letters，2017，474：409–418.
[16] 蒋复量，张 帅，刘 永，等. 爆破动载作用下含放射性型岩内部损伤演化及表面氡析出率响应特征[J]. 岩石力学与工程学报，2020，39(增1)：2 741–2 750.(JIANG Fuliang，ZHANG Shuai，LIU Yong，et al. Response characteristics of internal damage evolution and surface radon exhalation rate of radioactive rock under blasting dynamic loading[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(Supp.1)：2 741–2 750.(in Chinese))
[17] 李惠信，刘玉彬，孙庆元. 原子物理学与原子核物理学[M]. 济南：山东教育出版社，1987：279–285.(LI Huixin，LIU Yubin，SUN Qingyuan. Atomic physics and nuclear physics[M]. Jinan：Shandong Education Press，1987：279–285.(in Chinese))
[18] 中华人民共和国行业标准编写组. SL/T 264—2020 水利水电工程岩石试验规程[S]. 北京：中国计划出版社，2020.(The Professional Standards Compilation Group of the People?s Republic of China. SL/T 264—2020 Specifications for rock tests in water conservancy and hydroelectric engineering[S]. Beijing：China Planning Press，2020.(in Chinese))
[19] 张 炜. 覆岩采动裂隙及其含水性的氡气地表探测机制研究[博士学位论文][D]. 徐州：中国矿业大学，2012.(ZHANG Wei. Mechanism research on detecting mining-induced fractures and its aquosity in overlying strata by radon on surface[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2012.(in Chinese))
[20] NICOLAS A，GIRAULT F，SCHUBNEL A，et al. Radon emanation from brittle fracturing in granites under upper crustal conditions[J]. Geophysical Research Letters，2015，41(15)：5 436–5 443.
[21] 张传庆，李玲玉，崔国建，等. 岩石剪切破坏过程中氡气释放量测量装置及测试方法[P]. 中国：202010925972.7，2020–09–07. (ZHANG Chuanqing，LI Lingyu，CUI Guojian，et al. Device and method for measuring radon elease amount during rock shearing damage process[P]. China：202010925972.7，2020–09–07.(in Chinese))
[22] CAI M，KAISER P K，TASAKA Y，et al. Generalized crack initiation and crack damage stress thresholds of brittle rock masses near underground excavations[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(5)：833–847.
[23] 彭 俊，蔡 明，荣 冠，等. 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)：1 091–1 100.(PENG Jun，CAI Ming，RONG Guan，et al. Stresses for crack closure and its application to assessing stress-induced microcrack damage[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(6)：1 091–1 100. (in Chinese))
[24] 李朝明，杨志坚，赵鹤翼，等. KJD‐2000R测氡仪测试分析[J]. 地震地磁观测与研究，2012，33(增1)：148–153.(LI Chaoyang，YANG Zhijian，ZHAO Heyi，et al. Preliminary test for a new-style KJD‐2000R water radon monitoring analyzer[J]. Seimological and Geomagnetic Observation and Research，2012，33(Supp.1)：148–153.(in Chinese))
[25] 殷晓梅，宋建华，左文才，等. 连续测氡仪测定空气中氡浓度方法探讨[J]. 中国测试技术，2007，(5)：32–34.(YIN Xiaomei，SONG Jianhua，ZUO Wencai，et al. Measuring radon consistence with continuous radon measurement instrument[J]. China Measurement and Test，2007，(5)：32–34.(in Chinese))
[26] 陈国庆，赵 聪，魏 涛，等. 基于全应力–应变曲线及起裂应力的岩石脆性特征评价方法[J]. 岩石力学与工程学报，2018，37(1)：51–59.(CHEN Guoqing，ZHAO Cong，WEI Tao，et al. Evaluation method of brittle characteristics of rock based on full stress-strain curve and crack initiation stress[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(1)：51–59.(in Chinese))
[27] 中华人民共和国国家标准编写组. GB18871—2002电离辐射防护与辐射源安全基本标准[S]. 北京：原子能出版社，2004.(The National Standards Compilation Group of People?s Republic of China. GB18871—2002 Basic standard for protection against ionizing radiation and safety of radiation sources[S]. Beijing：China Planning Press，2004.(in Chinese))
[28] 吴 钢. 氡对人体健康的影响和安全标准问题探讨[J]. 铀矿冶，2005，(1)：42–49.(WU Gang. Influence of radon on man health and the question of its safe standard[J]. Uranium Mining and Metallurgy，2005，(1)：42–49.(in Chinese))
[29] ZHANG C Q，ZHOU H，FENG X T. An index for estimating the stability of brittle surrounding rock mass：FAI and its engineering application[J]. Rock Mechanics and Rock Engineering，2011，44(4)：401–414.
[30] MARTIN C D. The strength of massive Lac du Bonnet granite around underground openings[Ph. D. Thesis][D]. Manitoba，Canada：University of Manitoba，1993.
[31] HAJIABDOLMAJID V. Mobilization of strength in brittle failure of rock [Ph. D. Thesis][D]. Kingston，Canada：Queen′s University，2001.
[32] 张传庆，冯夏庭，周 辉，等. 深部试验隧洞围岩脆性破坏及数值模拟[J]. 岩石力学与工程学报，2010，29(10)：2 063–2 068.(ZHANG Chuanqing，FENG Xiating，ZHOU Hui，et al. Brittle failure of surrounding rock mass in deep test tunnels and its numerical simulation[J] Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：2 063–2 068.(in Chinese))
[33] 史林肯，周 辉，宋 明，等. 深部复合地层TBM开挖扰动模型试验研究[J]. 岩土力学，2020，41(6)：1 933–1 943.(SHI Linken，ZHOU Hui，SONG Ming，et al. Physical experimental study on excavation disturbance of TBM in deep composite strata[J]. Rock and Soil Mechanics，2020，41(6)：1 933–1 943.(in Chinese))
[34] 张振华，钱明明，位 伟. 基于改进破坏接近度的千将坪岸坡失稳机制分析[J]. 岩石力学与工程学报，2018，37(6)：1 371–1 384. (ZHANG Zhenhua，QIAN Mingming，WEI Wei. Analysis of failure mechanism of Qianjiangping slope based on improved failure approach index[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(6)：1 371–1 384.(in Chinese))
[35] BAUER S J，GARDNER W P，LEE H . Release of radiogenic noble gases as a new signal of rock deformation[J]. Geophysical Research Letters，2016，43(20)：10 688–10 694.
[36] WYSOCKA M，SKUBACZ K，CHMIELEWSKA I，et al. Radon migration in the area around the coal mine during closing process[J]. International Journal of Coal Geology，2019，212：103253. |
|
|
|
2022, Vol. 41 
