王勇等：初始温度条件下全尾胶结膏体损伤本构模型 ·37· 变量形mnmO 变量形nmm口 100 418 100 41.95 .8 1.6 1 1.6 50 0 50 0.8 0.6 0 0.4 20 -20-101020 0 0.2 0 -201001020 0.2 0 (c) 变量形m口 变量形mm可 100 41.7 100 415 1.6 14 1.4 12 1.2 50 1.0 1.0 0.8 0.6 0.6 0.4 0.4 0.2 20 02 -20-1001020 0 0 0 -20-j001020 0 0 0 图8养护28d不同初始温度膏体累计变形量.(a)2℃：(b)20℃：(c)35℃：(d)50℃ Fig.8 Accumulative deformation of cemented paste after curing for28 d at different initial temperatures:(a)2℃：(b)20℃：(c）35℃：(d)50 -7d 3. 47d 三10 (a) ◆28d 30 -28d 6 2.0 0.5 00 10 2030 40 50 60 10 203040 5060 初始温度℃ 初始温度℃ 图9不同初始温度膏体轴向最大应力与累计变形量.(a)轴向最大应力：(b)累计变形量 Fig.9 Axial maximum stress and accumulative deformation of cemented paste at different initial temperatures:(a)axial maximum stress;(b)accu- mulative deformation 以保证膏体较好的力学性能，又可以保证较好的延展 Technol Beijing,2014,36(7):855 性，从而减少矿柱开采时由于膏体充填体混入造成的 (王勇，吴爱祥，王洪江，等.从屈服应力角度完善膏体定义 贫化率. 北京科技大学学报，2014,36(7)：855) [5] Cayouette J.Optimization of the paste backfill plant at Louvicourt mine.CIM Bull,2003,96(1075):51 参考文献 [6] Belem T,Benzaazoua M.Design and application of underground mine paste backfill technology.Geotech Geol Eng,2008,26(2): [1]Ghirian A,Fall M.Coupled thermo-hydro-mechanical-chemical 147 behaviour of cemented paste backfill in column experiments:Part II.Mechanical,chemical and microstructural processes and char- [7]Fall M,BelemT,SambS,et al.Experimental characterization of acteristics.Eng Geol,2014,170:11 the stress-strain behaviour of cemented paste backfill in compres- [2]Wu A X,Wang Y,Wang H J,et al.Coupled effects of cement sion.J Mater Sci,2007,42(11)3914 type and water quality on the properties of cemented paste back- [8]Deng D Q,Yao Z L,Tang S H,et al.Study on constitutive model fill.Int J Miner Process,2015,143:65 of damage of backfil under uniaxial compressive loading.Soil Eng [3]Wu A X,Wang Y.Wang H J.Estimation model for yield stress of Found,2006,20(3):53 fresh uncemented thickened tailings:coupled effects of true solid (邓代强，姚中亮，唐绍辉，等.单轴压缩作用下充填体损伤 density,bulk density,and solid concentration.Int J Miner 本构模型研究.土工基础，2006,20(3)：53) Process,2015,143:117 [9]Liu ZX,Liu QL,Dang W G.On softening-hardening intrinsical- [4]Wang Y,Wu A X,Wang H J,et al.Further development of ly constitutive model for damage of tailings-cemented filling body paste definition from the viewpoint of yield tress.J Uni Sci J Shandong Univ Sci Technol Nat Sei,2012,31(2):36王 勇等: 初始温度条件下全尾胶结膏体损伤本构模型 图 8 养护 28 d 不同初始温度膏体累计变形量. (a) 2 益 ;(b) 20 益 ;(c) 35 益 ;(d) 50 益 Fig. 8 Accumulative deformation of cemented paste after curing for 28 d at different initial temperatures: (a) 2 益 ; (b) 20 益 ; (c) 35 益 ;(d) 50 益 图 9 不同初始温度膏体轴向最大应力与累计变形量. (a)轴向最大应力;(b)累计变形量 Fig. 9 Axial maximum stress and accumulative deformation of cemented paste at different initial temperatures: (a) axial maximum stress; (b) accu鄄 mulative deformation 以保证膏体较好的力学性能,又可以保证较好的延展 性,从而减少矿柱开采时由于膏体充填体混入造成的 贫化率. 参 考 文 献 [1] Ghirian A, Fall M. Coupled thermo鄄hydro鄄mechanical鄄chemical behaviour of cemented paste backfill in column experiments: Part II. Mechanical, chemical and microstructural processes and char鄄 acteristics. Eng Geol, 2014, 170: 11 [2] Wu A X, Wang Y, Wang H J, et al. Coupled effects of cement type and water quality on the properties of cemented paste back鄄 fill. Int J Miner Process, 2015, 143: 65 [3] Wu A X, Wang Y, Wang H J. Estimation model for yield stress of fresh uncemented thickened tailings: coupled effects of true solid density, bulk density, and solid concentration. Int J Miner Process, 2015, 143: 117 [4] Wang Y, Wu A X, Wang H J, et al. Further development of paste definition from the viewpoint of yield tress. J Univ Sci Technol Beijing, 2014, 36(7): 855 (王勇, 吴爱祥, 王洪江, 等. 从屈服应力角度完善膏体定义. 北京科技大学学报, 2014, 36(7): 855) [5] Cayouette J. Optimization of the paste backfill plant at Louvicourt mine. CIM Bull, 2003, 96(1075): 51 [6] Belem T, Benzaazoua M. Design and application of underground mine paste backfill technology. Geotech Geol Eng, 2008, 26(2): 147 [7] Fall M, Belem T, Samb S, et al. Experimental characterization of the stress鄄strain behaviour of cemented paste backfill in compres鄄 sion. J Mater Sci, 2007, 42(11): 3914 [8] Deng D Q, Yao Z L, Tang S H, et al. Study on constitutive model of damage of backfil under uniaxial compressive loading. Soil Eng Found, 2006, 20(3): 53 (邓代强, 姚中亮, 唐绍辉, 等. 单轴压缩作用下充填体损伤 本构模型研究. 土工基础, 2006, 20(3): 53) [9] Liu Z X, Liu Q L, Dang W G. On softening鄄hardening intrinsical鄄 ly constitutive model for damage of tailings鄄cemented filling body. J Shandong Univ Sci Technol Nat Sci, 2012, 31(2): 36 ·37·