冻结饱和砂岩三轴压缩力学特性及强度预测模型研究

doi:10.13722/j.cnki.jrme.2018.1417

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1056 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The artificial freezing method has been widely used in excavation of water-rich soft rock layers，and hence，understanding the mechanical properties of frozen rock is of great engineering significance. Taking saturated cretaceous sandstone as testing sample，triaxial compression tests with different confining pressures(0，2，4 and 6 MPa) were carried out at different temperatures(+20 ℃，0 ℃，－10 ℃ and －20 ℃). The results demonstrate a strong negative correlation between the strength of saturated sandstone and the subzero temperature. Under the same confining pressure, the peak pressure increases by 2–4 times when the temperature reduces from +20 ℃ to －20 ℃. At a constant freezing temperature，the peak strength increases by 1–3 times when the confining pressure increases from 0 MPa to 6 MPa. Both the cohesive force and the internal friction angle rise with decreasing the temperature，up to 5 times for the former. A strength forecasting model for frozen sandstone is proposed based on the comparison of prediction accuracy of five existing strength criterion theories according to the test results. The Rocker criterion is proven to be optimal and further modified taking into account the effect of the temperature on its parameters. The above results could provide a guidance for rock excavation both in cold regions and artificial frozen layers.

Key words： rock mechanics frozen sandstone triaxial compression deformation and failure strength forecasting

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YANG Gengshe
	WEI Yao
	SHEN Yanjun
	WANG Lei
	LIU Hui
	DONG Xihao
	LI Xiaojin

Cite this article:

YANG Gengshe,WEI Yao,SHEN Yanjun, et al. Mechanical behavior and strength forecast model of frozen saturated sandstone under triaxial compression[J]. , 2019, 38(4): 683-694.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2018.1417 OR http://www.rockmech.org/EN/Y2019/V38/I4/683

[26]	HOEK E. Strength of rock and rock masses[J]. International Society for Rock Mechanics News Journal，1994，2(2)：4-16.
[12]	WINKLER E M. Frost damage to stone and concrete：geological considerations[J]. Engineering Geology，1968，2(5)：315-323.
[21]	JAEGER J C，COOK N G W，ZIMMERMAN R W. Fundamentals of rock mechanics[M]. New York：Black Well Publishing，2007：90-97.
[17]	尤明庆. 围压对岩石试样强度的影响及离散性[J]. 岩石力学与工程学报，2014，33(5)：929-937.(YOU Mingqing. Effect of confining pressure on strength scattering of rock specimen[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：929-937.(in Chinese))
[3]	杨更社，奚家米，王宗金，等. 胡家河煤矿主井井筒冻结壁岩石力学特性研究[J]. 煤炭学报，2010，35(4)：565-570.(YANG Gengshe，XI Jiami，WANG Zongjin，et al. Study on rock mechanical properties of frozen wall of main shaft in Hujiahe Coal Mine[J]. Journal of China Coal Society，2010，35(4)：565-570.(in Chinese))
[5]	杨更社，张全胜，蒲毅彬.冻结温度对岩石细观损伤扩展特性影响研究初探[J]. 岩土力学，2004，25(9)：1 409-1 412.(YANG Gengshe，ZHANG Quansheng，PU Yibin. Preliminary study on meso-damage propagation characteristics of rock under condition of freezing temperature[J]. Rock and Soil Mechanics，2004，25(9)： 1 409-1 412.(in Chinese))
[7]	申艳军，杨更社，荣腾龙，等. 岩石冻融循环试验建议性方案探讨[J]. 岩土工程学报，2016，38(10)：1 775-1 782.(SHEN Yanjun，YANG Gengshe，RONG Tenglong，et al. Proposed scheme for freeze-thaw cycle tests on rock[J]. Chinese Journal of Geotechnical Engineering，2016，38(10)：1 775-1 782.(in Chinese))
[8]	朱杰，徐颖，李栋伟，等. 泊江海子矿白垩纪地层冻结软岩力学特性试验[J]. 吉林大学学报：地球科学版，2016，46(3)：798-804.(ZHU Jie，XU Ying，LI Dongwei，et al. Experimental study on mechanical properties of frozen soft rock of cretaceous formation in Bojianghaizi mine[J]. Journal of Jilin University：Earth Science Edition，2016，46(3)：798-804.(in Chinese))
[9]	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，et al. 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.(in Chinese))
[13]	朱合华，张琦，章连洋. Hoek-Brown强度准则研究进展与应用综述[J]. 岩石力学与工程学报，2013，32(10)：1 945-1 964. (ZHU Hehua，ZHANG Qi，ZHANG Lianyang. Review of research progresses and applications of Hoek-brown strength criterion[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(10)：1 945-1 964.(in Chinese))
[15]	沈华章，王水林，刘泉声. 模拟应变软化岩石三轴试验过程曲线[J]. 岩土力学，2014，35(6)：1 647-1 654.(SHEN Huazhang，WANG Shuilin，LIU Quansheng. Simulation of constitutive curves for strain- softening rock in triaxial compression[J]. Rock and Soil Mechanics，2014，35(6)：1 647-1 654.(in Chinese))
[18]	路德春，杜修力. 岩石材料的非线性强度与破坏准则研究[J]. 岩石力学与工程学报，2013，32(12)：2 394-2 408.(LU Dechun，DU Xiuli. Research on nonlinear strength and failure criterion of rock material[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(12)：2 394-2 408.(in Chinese))
[19]	申艳军，杨更社，王铭，等. 冻融循环过程中岩石热传导规律试验及理论分析[J]. 岩石力学与工程学报，2016，35(12)：2 417- 2 425.(SHEN Yanjun，YANG Gengshe，WANG Ming，et al. Experimental and theoretical study on thermal conductivity of rock under cyclic freezing and thawing[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(12)：2 417-2 425.(in Chinese))
[23]	HOEK E，BROWN E T. Empirical strength criterion for rock masses[J]. Journal of Geotechnical and Geoenvironmental Engineering，ASCE，1980，106(9)：1 013-1 035.
[25]	HOEK E，WOOD D，SHAH S. A modified Hoek-Brown criterion for jointed rock masses[C]// HUDSON J A ed. Proceedings of the Rock Characterization，Symposium of ISRM. London：British Geotechnical Society，1992：209-214.
[4]	杨更社，奚家米，李慧军，等. 煤矿立井井筒冻结壁软岩力学特性试验研究[J]. 地下空间与工程学报，2012，8(4)：690-697. (YANG Gengshe，XI Jiami，LI Huijun，et al. Experimental study on the mechanical properties of soft rock of coal mine shaft sidewalls under the frozen conditions[J]. Chinese Journal of Underground Space and Engineering，2012，8(4)：690-697.(in Chinese))
[6]	奚家米，杨更社，庞磊，等. 低温冻结作用下砂质泥岩基本力学特性试验研究[J]. 煤炭学报，2014，39(7)：1 262-1 268.(XI Jiami，YANG Gengshe，PANG Lei，et al. Experimental study on basic mechanical behaviors of sandy mudstone under low freezing temperature[J]. Journal of China Coal Society，2014，39(7)：1 262- 1 268.(in Chinese))
[14]	石祥超，孟英峰，李皋. 几种岩石强度准则的对比分析[J]. 岩土力学，2011，32(增1)：209-217.(SHI Xiangchao，MENG Yingfeng，LI Gao. Comparative analyses of several rock strength criteria[J]. Rock and Soil Mechanics，2011，32(Supp.1)：209-217.(in Chinese))
[16]	尤明庆. 完整岩石的强度和强度准则[J]. 复旦学报：自然科学版，2013，52(5)：569-583.(YOU Mingqing. Strength and strength criteria for intact rocks[J]. Journal of Fudan University：Natural Science，2013，52(5)：569-583.(in Chinese))
[24]	HOEK E，BROWN E T. Underground excavations in rocks[M]. London：Institution of Mining and Metallurgy，1980：527.
[1]	杨更社，奚家米，李慧军，等. 三向受力条件下冻结岩石力学特性试验研究[J]. 岩石力学与工程学报，2010，29(3)：459-464.(YANG Gengshe，XI Jiami，LI Huijun，et al. Experimental study of rock mechanical properties under triaxial compressive and frozen conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：459-464.(in Chinese))
[2]	杨更社，奚家米，邵学敏，等. 冻结条件下岩石强度特性的试验[J]. 西安科技大学学报，2010，30(1)：14-18.(YANG Gengshe，XI Jiami，SHAO Xuemin，et al. Experimental study on rock strength properties under freezing conditions[J]. Journal of Xi?an University of Science and Technology，2010，30(1)：14-18.(in Chinese))
[10]	BAYRAM F. Predicting mechanical strength loss of natural stones after freeze-thaw in cold regions[J]. Cold Regions Science and Technology，2012，83(12)：98-102.
[11]	GHOLAMREZA K，REZA Z S，YASIN A. The effect of freeze-thaw cycles on physical and mechanical properties of Upper Red Formation sandstones，central part of Iran[J]. Arabian Journal of Geosciences，2014，8(8)：5 991-6 001.
[20]	黄秀峰，潘礼庆，李晨曦，等. 低温下二氧化硅介孔内水的振动性质[J]. 物理学报，2012，61(13)：136801.(HUANG Xiufeng，PAN Liqing，LI Chenxi，et al. Vibrational dynamics of water confined in mesoporous silica under low temperature[J]. Acta Physica Sinica，2012，61(13)：136801.(in Chinese))
[22]	中华人民共和国行业标准编写组. SL264—2001水利水电工程岩石试验规程[S]. 北京：中国水利水电出版社，2001.(The Professional Standards Compilation Group of People?s Republic of China. SL264—2001 Water conservancy and hydropower engineering specifications for rock tests[S]. Beijing：China Water Power Press，2001.(in Chinese)
[27]	YOU M Q. True triaxial strength criteria for rock[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(1)：115-127.
[28]	尤明庆. 岩石强度准则的数学形式和参数确定的研究[J]. 岩石力学与工程学报，2010，29(11)：2 172-2 183.(YOU Mingqing. Study of mathematical equation and parameter determination of strength criteria for rock[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(11)：2 172-2 183.(in Chinese))
[29]	CARTER B J，DUNCAN S E J，LAJTAI E Z. Fitting strength criteria to intact rock[J]. Geotechnical and Geological Engineering，1991，9(1)：73-81.
[30]	尤明庆. 岩石的力学性质[M]. 北京：地质出版社，2007：60-64.(YOU Mingqing. Mechanical properties of rocks[M]. Beijing：Geological Publishing House，2007：60-64.(in Chinese))
[31]	奚家米，杨更社，董西好. 冻结温度对砂质泥岩力学特性的影响[J]. 长安大学学报：自然科学版，2014，34(4)：92-97.(XI Jiami，YANG Gengshe，DONG Xihao. Effect of freezing temperature on mechanical properties of sandy mudstone[J]. Journal of Chang?an University：Natural Science，2014，34(4)：92-97.(in Chinese))