尾砂胶结充填体单轴受压应力-应变关系及其损伤本构模型

doi:10.11896/cldb.21010265

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (38273KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to systematically study the influence of curing age on the basic mechanical properties, stress-strain relations and failure modes of cemented tailings backfill, uniaxial compression tests were carried out on the cemented tailings backfill (CTB) specimens at different curing ages. Then, a segmented damage constitutive model considering curing age was established based on damage mechanics theory. The research shows that the compressive strength and elastic modulus of CTB specimens increase exponentially with curing age increasing. And the increasing rate of compressive strength decreases with the cement-sand ratio increasing in late-age curing. According to the stress-strain curve of CTB spe-cimens, the expression of stress-strain relationship under uniaxial compression for CTB specimens was proposed. Moreover, the validity of the formula was verified by comparing the measured value with the theoretical value. When the curing age exceeds 7 d, the deformability of CTB specimens which have the high content of cement is reduced with curing age increasing. However, the deformability of CTB specimens which have the low content of cement has positive relationship with curing age. Therefore, the curing age has a significant effect on the failure mode of CTB specimens, and the actual effect is closely related to the cement content in the backfill.

Key words： damage mechanics stress-strain relationship failure pattern compressive strength elasticity modulus

Published: 25 August 2022 Online: 2022-08-29

CLC number:

TD853

Fund:Key Program of National Natural Science Foundation of China (52034001, 51734001) and the Fundamental Research Funds for the Central Universities (FRT-TP-18-003C1).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HOU Yongqiang
	YIN Shenghua
	CAO Yong
	YANG Shixing
	ZHANG Minzhe

Cite this article:

HOU Yongqiang,YIN Shenghua,CAO Yong, et al. Stress-Strain Relationship and Damage Constitutive Model of Cemented Tailings Backfill Under Uniaxial Compression[J]. Materials Reports, 2022, 36(16): 21010265-8.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21010265 OR http://www.mater-rep.com/EN/Y2022/V36/I16/21010265

1 Zhai Y G, Wu A X, Wang H J. Journal of University of Science and Technology Beijing, 2011, 33(7), 795(in Chinese).
翟永刚, 吴爱祥, 王洪江.北京科技大学学报, 2011, 33(7), 795.
2 Cui G, Chen W K, Duan H J. Journal of China University of Mining & Technology, 2004(3), 77(in Chinese).
崔刚, 陈文楷, 段鸿杰.中国矿业大学学报, 2004(3), 77.
3 Wang X M, Xue X L, Zhang Q L, et al. Journal of Central South University (Science and Technology), 2015, 46(10), 3767(in Chinese).
王新民, 薛希龙, 张钦礼, 等. 中南大学学报(自然科学版), 2015, 46(10), 3767.
4 Gao J K,Yang C X. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(S2),2625(in Chinese).
高建科, 杨长祥.岩石力学与工程学报, 2003, 22(S2),2625.
5 He G C, Liu S L, Huang B X, et al. Journal of Mining & Safety Engineering, 2017, 34(2), 371(in Chinese).
贺桂成, 刘生龙, 黄炳香, 等. 采矿与安全工程学报, 2017, 34(2), 371.
6 Han B, Wang X L, Xiao W G. Journal of Mining & Safty Engineering, 2012, 29(5), 714(in Chinese).
韩斌, 王贤来, 肖卫国. 采矿与安全工程学报, 2012, 29(5), 714.
7 Wu H, Zhao G Y, Chen Y. Journal of Harbin Institute of Technology, 2017, 49(11), 101(in Chinese).
吴浩, 赵国彦, 陈英.哈尔滨工业大学学报, 2017, 49(11), 101.
8 Xu W B, Du J H, Song W D, et al. Rock and Soil Mechanics, 2013, 34(8), 2295(in Chinese).
徐文彬, 杜建华, 宋卫东, 等. 岩土力学, 2013, 34(8), 2295.
9 Cao S, Song W D, Xue G L, et al. Journal of China University of Mining & Technology, 2016, 45(4), 717(in Chinese).
曹帅, 宋卫东, 薛改利, 等.中国矿业大学学报, 2016, 45(4), 717.
10 Song W D, Wang J, Tan Y Y, et al. Journal of China University of Mining & Technology, 2017, 46(5), 1050(in Chinese).
宋卫东, 汪杰, 谭玉叶, 等. 中国矿业大学学报, 2017, 46(5), 1050.
11 Wang J, Song W D, Tan Y Y, et al. Rock and Soil Mechanics, 2019, 40(5), 1731(in Chinese).
汪杰, 宋卫东, 谭玉叶, 等. 岩土力学, 2019, 40(5), 1731.
12 Zhao S G, Su D L, Wu W R, et al. China Mining Magazine, 2017, 26(2),106(in Chinese).
赵树果, 苏东良, 吴文瑞,等.中国矿业, 2017, 26(2),106.
13 Cheng A P, Dai S Y, Zhang Y S, et al. Chinese Journal of Rock Mecha-nics and Engineering, 2019, 38(S1), 3053(in Chinese).
程爱平, 戴顺意, 张玉山, 等.岩石力学与工程学报, 2019, 38(S1), 3053.
14 Liu Z X, Lan M, Xiao S Y, et al. Transactions of Nonferrous Metals Society of China, 2015, 25(3), 954(in Chinese).
刘志祥, 兰明, 肖思友, 等. 中国有色金属学会会刊:英文版, 2015, 25(3), 954.
15 Nie Y L, Wang X J, Huang G L, et al. Bulletin of the Chinese Ceramic Society, 2018, 37(6), 2008(in Chinese).
聂亚林, 王晓军, 黄广黎, 等. 硅酸盐通报, 2018, 37(6), 2008.
16 Zhao K, Zhu S T, Zhou K P, et al. Journal of Mining & Safety Enginee-ring, 2019, 36(2), 413(in Chinese).
赵康, 朱胜唐, 周科平, 等.采矿与安全工程学报,2019,36(2),413.
17 Yang W, Tao M, Li X B, et al. Journal of Northeastern University (Natural Science), 2017,38(11),1659(in Chinese).
杨伟,陶明,李夕兵,等.东北大学学报(自然科学版),2017,38(11),1659.
18 Yang W, Zhang Q L, Yang S, et al. Journal of Central South University (Science and Technology), 2017,48(1),156(in Chinese).
杨伟,张钦礼,杨珊,等.中南大学学报(自然科学版),2017,48(1),156.
19 Xu W B, Song W D, Wang D X, et al. Rock and Soil Mechanics,2014,35(12),3421(in Chinese).
徐文彬,宋卫东,王东旭,等.岩土力学,2014,35(12),3421.
20 Xu W B, Song W D, Wang D X, et al. Journal of China University of Mining & Technology,2014,43(5),808(in Chinese).
徐文彬,宋卫东,王东旭,等.中国矿业大学学报,2014,43(5),808.
21 Li H T, Jiang C X, Jiang Y D, et al. Journal of China University of Mining & Technology, 2015,44(3),430(in Chinese).
李海涛,蒋春祥,姜耀东,等. 中国矿业大学学报,2015,44(3),430.
22 Liu W L, Yan E C, Dai H, et al. Chinese Journal of Rock Mechanics and Engineering,2020,39(2),311(in Chinese).
柳万里,晏鄂川,戴航,等.岩石力学与工程学报,2020,39(2),311.
23 Chen J, Geng Y, Wang Y Y, et al. Journal of Building Structures,2020,41(12),184(in Chinese).
陈杰, 耿悦, 王玉银, 等.建筑结构学报,2020,41(12),184.