Determination of backfill strength and composition are key to the use of staged open stope mining with subsequent filling. The traditional method of determining backfill strength has certain disadvantages, so it is necessary to explore a more scientific approach to obtain reasonable matches between backfill strength and excavated rock mass. Stress-strain curves of backfills with different cement-tailings ratios were obtained from laboratory mechanical tests for Zhongguan Iron Mine. Damage constitutive models prior to peak stress were established from damage mechanics. Using the principle that peak deformation energy corresponds to the energy released from an excavated rock mass, the optimum backfill strength and composition ratio were determined. The study provides a scientific basis for the backfilling design of this mine.
Similar content being viewed by others
References
H. Jones and D. V. Boger, "Sustainability and waste management in the resource industries," Ind. Eng. Chem. Res., 51 (30), 10057-10065 (2012).
M. Kermani, F. P. Hassani, E. Aflaki, M. Benzaazoua and M. Nokken, "Evaluation of the effect of sodium silicate addition to mine backfill, Gelfill-Part 1," J. Rock Mech. Geotech. Eng., 7(3), 266-272 (2015).
L. Li, "A new concept of backfill design-Application of wick drains in backfilled stopes," Int. J. Min. Sci. Technol., 23(5), 763-770 (2013).
J. Q. Qiu, L. Yang, X. G. Sun, J. Xing and S. B. Li, "Strength characteristics and failure mechanism of cemented super-fine unclassified tailings backfill," Minerals, 7(4), 58 (2017).
J. Li, J. X. Zhang, Y. L. Huang, Q. Zhang and J. M. Xu, "An investigation of surface deformation after fully mechanized, solid back fill mining," Int. J. Min. Sci. Technol., 22(4), 453-457 (2012).
J. P. Doherty, "A numerical study into factors affecting stress and pore pressure in free draining mine stopes," Comput. Geotech., 63, 331-341 (2015).
E. Yilmaz, T. Belem and M. Benzaazoua, "Specimen size effect on strength behavior of cemented paste backfills subjected to different placement conditions," Eng. Geol., 185, 52-62 (2015).
S.J. Cai, G. Huang, D. Wu and Y.D. Zhang, "Experimental and modeling study on the rheological properties of tailings backfill," J. Northeastern Univ.: Nat. Sci., 36(6), 882-886 (2015).
T. Belem and M. Benzaazoua, "Design and application of underground mine paste backfill technology," Geotech. Geol. Eng., 26(2), 147-174 (2008).
F. W. Zhang, W. X. Liu and L. F. Shen, "Damage constitutive model for cemented paste backfill after mixing waste rock," 2012 World Automation Congress (WAC), Puerto Vallarta, IEEE, 1-4 (2012).
G. B. Yu, P. Yang and Y. Z. Chen, "Study on damage constitutive model of cemented tailings backfill under uniaxial compression," Appl. Mech. Mater., 353-356, 379-383 (2013).
Q. G. Zhang, G. Z. Yin, X. Y. Fan, X. Q. Li, W. S. Wang, W. L. Geng, and H.R. Liu, "A damage constitutive model of tailings based on the analysis of elastic-plastic and sliding of skeleton grains," Disaster Adv., 5(4), 730-735 (2012).
Z. X. Liu, X. B. Li, T. G. Dai, and P. Cao, "On damage model of cemented tailings backfill and its match with rock mass," Rock Soil Mech., 27(9), 1442-1446 (2006).
J. R. Zheng, Y. L. Zhu and Z. B. Zhao, "Utilization of limestone powder and water-reducing admixture in cemented paste backfill of coarse copper mine tailings," Constr. Build. Mater., 124, 31-36 (2016).
Standard Test Method for Unconfined Compressive Strength of Cohesive Soil; ASTM D2166/D2166M-16; ASTM International: West Conshohocken, PA, USA (2016).
Z. C. Xue, L. Yang and Z. J. Yang. "A damage model with subsection curve of concrete and its numerical verification based on ABAQUS," 2010 Int. Conf. on Computer Design and Applications (ICCDA), Qinhuangdao, IEEE, 5, 34-37 (2010).
J. Lemaitre, "How to use damage mechanics," Nucl. Eng. & Des., 80(1), 233-245 (1984).
Z. X. Liu, M. Lan, S. Y. Xiao, and H. Q. Guo, "Damage failure of cemented backfill and its reasonable match with rock mass," Trans. Nonferrous Met. Soc. China, 25(3), 954-959 (2015).
Y. L. Liu, D. X. Ding, G. Y. Li, and N. Hu, "Match between the solidification of the cemented back fill and the vertical stress in the excavated ore body," Min. Safety Eng., 30(4), 526-530 (2013).
Author information
Authors and Affiliations
Additional information
Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 6, p. 8, November-December, 2017.
Rights and permissions
About this article
Cite this article
Qiu, JP., Yang, L., Xing, J. et al. Analytical Solution for Determining the Required Strength of Mine Backfill Based on its Damage Constitutive Model. Soil Mech Found Eng 54, 371–376 (2018). https://doi.org/10.1007/s11204-018-9483-7
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11204-018-9483-7