不同含量玻璃纤维尾砂充填体损伤规律与围岩匹配关系

doi:10.13722/j.cnki.jrme.2021.1252

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摘要为提高三门峡罗山金矿采空区充填后的稳定性，对玻璃纤维质量含量分别为0%，0.5%和0.7%的尾砂胶结充填体损伤规律进行研究。通过单轴压缩试验得到不同含量玻璃纤维尾砂胶结充填体应力–应变曲线，并根据建立的损伤本构方程，分析充填体的能量耗散规律，得出其与围岩的匹配关系。研究结果表明：(1) 在一定范围内，玻璃纤维的掺入提高了充填体的强度，降低了初始弹性模量。(2) 掺入玻璃纤维能够降低充填体达到峰值应力时的损伤值，但随着其含量的增加，充填体损伤值达到极值的过程越缓慢。(3) 得到了不同含量玻璃纤维充填体的峰值比能计算模型，进而得出充填体的峰值比能随着玻璃纤维含量的增加而增大。(4) 以该矿山充填开采为背景，得到采空区埋深与充填体强度的匹配设计模型，可为矿山节约充填成本提供科学依据。

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	赵康1
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	赵康奇1
	严雅静2
	周昀1
	杨健1
	伍俊1

关键词 ：岩石力学, 尾砂胶结充填体, 玻璃纤维, 初始弹性模量, 损伤, 峰值比能

Abstract：In order to improve the stability of mined-out areas after filling in a metal mine，the damage law of cemented tailings backfill with different contents(0%，0.5% and 0.7%) of glass fibers was studied. The stress-strain curves of cemented tailings backfill with different contents of glass fiber were obtained by uniaxial compression. The energy dissipation law of backfill was analyzed according to the damage constitutive equation，and its match with rock mass was obtained. The results show that：(1) in a certain range，the strength of backfill is improved with the addition of glass fiber but the elastic modulus is reduced. (2) The damage value of backfill when reaching the peak stress is reduced with adding glass fiber，but with the increase of its contents，the process of damage value reaching the maximum of backfill is slower. (3) The calculation model of peak specific energy of backfill with different contents of glass fiber is obtained，and the peak specific energy of backfill increases with the increase of contents of glass fiber. (4) Based on the filling mining of the mine，the design model of the depth of the goaf and the strength of the backfill is obtained，which can provide a scientific basis for saving the backfill cost of the mine.

Key words： rock mechanics cemented tailings backfill glass fiber initial elastic modulus damage peak specific energy

引用本文:

赵康1，2，赵康奇1，严雅静2，周昀1，杨健1，伍俊1. 不同含量玻璃纤维尾砂充填体损伤规律与围岩匹配关系[J]. 岩石力学与工程学报, 2023, 42(1): 144-153.
ZHAO Kang1，2，ZHAO Kangqi1，YAN Yajing2，ZHOU Yun1，YANG Jian1，WU Jun1. Damage law of cemented tailings backfill with different contents of glass fiber and its match with rock mass. , 2023, 42(1): 144-153.

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https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.1252 或 https://rockmech.whrsm.ac.cn/CN/Y2023/V42/I1/144

[1]	杨春和，张超，李全明，等. 大型高尾矿坝灾变机制与防控方法[J]. 岩土力学，2021，42(1)：1–17.(YANG Chunhe，ZHANG Chao，LI Quanming，et al. Disaster mechanism and prevention methods of large-scale high tailings dam[J]. Rock and Soil Mechanics，2021，42(1)：1–17.(in Chinese))
[2]	吴帅峰，严俊，蔡红，等. 尾矿管涌溃坝模式及下泄冲击特性试验研究[J]. 岩土工程学报，2021，43(11)：2 134–2 141.(WU Shuaifeng，YAN Jun，CAI Hong，et al. Experimental study on the dam break mode of tailing piping and the discharge impact characteristics[J]. Chinese Journal of Geotechnical Engineering，2021，43(11)：2 134–2 141.(in Chinese))
[3]	梅国栋，王云海. 我国尾矿库事故统计分析与对策研究[J]. 中国安全生产科学技术，2010，6(3)：211–213.(MEI Guodong，WANG Yunhai. Statistic analysis and counterm measure study on tailings pond accidents in China[J]. Journal of Safety Science and Technology，2010，6(3)：211–213.(in Chinese))
[4]	蔡永兵，邵俐，范行军，等. 安徽花山尾矿库溃坝污染农田土壤中As，Sb的释放及垂向迁移特征[J]. 环境化学，2020，39(9)：2 479–2 489.(CAI Yongbing，SHAO Li，FAN Xingjun，，et al. Study on the release and vertical migration characteristics of As and Sb in farmland soil contaminated by dam break of Huashan tailings pond，Anhui，China[J]. Environmental Chemistry，2020，39(9)：2 479–2 489.(in Chinese))
[5]	陈思莉，常莎，黄大伟，等. 3?28黑龙江鹿鸣矿业尾矿库泄漏事件受污染河水应急处理工艺筛选及处置效果[J]. 环境工程学报，2021，15(9)：2 895–2 903.(CHEN Lisha，CHANG Sha，HUANG Dawei，et al. Development and application of emergency treatment process for polluted river water caused by leakage of tailing pond of Lunming mining in Heilongjiang Province on March 28[J]. Chinese Journal of Environmental Engineering，2021，15(9)：2 895–2 903.(in Chinese))
[6]	陈绍杰，刘小岩，韩野，等. 充填膏体蠕变硬化特征与机制试验研究[J]. 岩石力学与工程学报，2016，35(3)：570–578.(CHEN Shaojie，LIU Xiaoyan，HAN Ye，et al. Experimental study of creep hardening characteristic and mechanism of filling paste[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(3)：570–578.(in Chinese))
[7]	周科平，刘维，周彦龙，等. 不同渗透力的类充填体力学特性及损伤软化本构模型研究[J]. 岩土力学，2019，40(10)：3 724–3 732. (ZHOU Keping，LIU Wei，ZHOU Yanlong，et al. Mechanical properties and damage-softening constitutive model of backfill with different osmotic pressures[J]. Rock and Soil Mechanics，2019，40(10)：3 724–3 732.(in Chinese))
[8]	赵康，朱胜唐，周科平，等. 钽铌矿尾砂胶结充填体力学特性及损伤规律研究[J]. 采矿与安全工程学报，2019，36(2)：413–419. (ZHAO Kang，ZHU Shengtang，ZHOU Keping，et al. Research on mechanical properties and damage law of tantalum-niobium ore cemented tailings backfill[J]. Journal of Mining and Safety Engineering，2019，36(2)：413–419.(in Chinese))
[9]	HOU Y Q，YIN S H，CHEN X，et al. Study on characteristic stress and energy damage evolution mechanism of cemented tailings backfill under uniaxial compression[J]. Construction and Building Materials，2021，301：124333.
[10]	刘志祥，李夕兵，赵国彦，等. 充填体与岩体三维能量耗损规律及合理匹配[J]. 岩石力学与工程学报，2010，29(2)：344–348.(LIU Zhixiang，LI Xibing，ZHAO Guoyan，et al. Three-dimensional energy dissipation laws and reasonable matches between backfill and rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(2)：344–348.(in Chinese))
[11]	WANG J，FU J X，SONG W D，et al. Acoustic emission characteristics and damage evolution process of layered cemented tailings backfill under uniaxial compression[J]. Construction and Building Materials，2021，295：123663.
[12]	冯国瑞，解文硕，郭育霞，等. 早期受载对矸石胶结充填体力学特性及损伤破坏的影响[J]. 岩石力学与工程学报，2022，41(4)：775–784.(FENG Guorui，XIE Wenshuo，GUO Yuxia，et al. Effect of early load on mechanical properties and damage of cemented gangue backfill[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(4)：775–784.(in Chinese))
[13]	GUO Z B，QIU J P，JIANG H Q，et al. Improving the performance of superfine-tailings cemented paste backfill with a new blended binder[J]. Powder Technology，2021，394：149–160.
[14]	WANG S，SONG X B，WEI M L，et al. Strength characteristics and microstructure evolution of cemented tailings backfill with rice straw ash as an alternative binder[J]. Construction and Building Materials，2021，297：123780.
[15]	陈绍杰，尹大伟，胡炳南，等. 条带充填坚硬顶板与充填体组合系统力学特性试验研究[J]. 采矿与安全工程学报，2020，37(1)：110–117.(CHEN Shaojie，YIN Dawei，HU Bingnan，et al. Study on mechanical characteristics of composite system of hard roof and filling body under strip filling[J]. Journal of Mining and Safety Engineering，2020，37(1)：110–117.(in Chinese))
[16]	ZHOU Y，YAN Y J，ZHAO K，et al. Study of the effect of loading modes on the acoustic emission fractal and damage characteristics of cemented paste backfill[J]. Construction and Building Materials，2021，277：122311.
[17]	薛改利. 掺纤维尾砂充填体多尺度力学特性及损伤演化机制研究[博士学位论文][D]. 北京：北京科技大学，2020.(XUE Gaili. Research on multi-scale mechanical properties and failure evolution mechanism of fiber reinforced cemented tailings backfill[Ph. D. Thesis][D]. Beijing：University of Science and Technology Beijing，2020.(in Chinese))
[18]	赵康，宋宇峰，于祥，等. 不同纤维作用下尾砂胶结充填体早期力学特性及损伤本构模型研究[J]. 岩石力学与工程学报，2022，41(2)：282–291.(ZHAO Kang，SONG Yufeng，YU Xiang，et al. Study on early mechanical properties and damage constitutive model of cemented tailings backfill under different fibers[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(2)：282–291.(in Chinese))
[19]	侯永强，尹升华，赵国亮，等. 聚丙烯纤维增强尾砂胶结充填体力学及流动性能研究[J]. 材料导报，2021，35(19)：19 030–19 035. (HOU Yongqiang，YIN Shenghua，ZHAO Guoliang，et al. Study on the mechanical and flow properties of polypropylene fiber reinforced cemented tailings backfill[J]. Materials Reports，2021，35(19)：19 030–19 035.(in Chinese))
[20]	徐文彬，李乾龙，田明明. 聚丙烯纤维加筋固化尾砂强度及变形特性[J]. 工程科学学报，2019，41(12)：1 618–1 626.(XU Wenbing，LI Qianlong，TIAN Mingming. Strength and deformation properties of polypropylene fiber-reinforced cemented tailings backfill[J]. Chinese Journal of Engineering，2019，41(12)：1 618–1 626.(in Chinese))
[21]	马国伟，李之建，易夏玮，等. 纤维增强膏体充填材料的宏细观试验[J]. 北京工业大学学报，2016，42(3)：406–412.(MA Guowei，LI Zhijian，YI Xiawei，et al. Macro-meso experiment of fiber- reinforced cement paste filling material[J]. Journal of Beijing University of Technology，2016，42(3)：406–412.(in Chinese))
[22]	HUANG Z Q，CAO S，YILMAZ E. Investigation on the flexural strength，failure pattern and microstructural characteristics of combined fibers reinforced cemented tailings backfill[J]. Construction and Building Materials，2021，300：124005.
[23]	李西凡，熊祖强，王鹏. 高水巷旁充填材料力学性能改进试验研究[J]. 中国安全科学学报，2020，30(5)：95–100.(LI Xifan，XIONG Zuqiang，WANG Peng. Experimental study on improvement of mechanical properties of high-water filling materials in gob-side entry retaining[J]. China Safety Science Journal，2020，30(5)：95–100.(in Chinese))
[24]	赵康，何志伟，严雅静，等.纤维增强超细尾砂充填体微观破坏机制[J]. 岩石力学与工程学报，2022，41(增1)：3 010–3 020. (ZHAO Kang，HE Zhiwei，YAN Yajing，et al. Microscopic failure mechanism of fiber reinforced ultra-fine tailings backfill[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(Supp.1)：3 010–3 020.(in Chinese))
[25]	XUE G L，YILMAZ E，SONG W D，et al. Influence of fiber reinforcement on mechanical behavior and microstructural properties of cemented tailings backfill[J]. Construction and Building Materials，2019，213：275–285.
[26]	LEMAITRE J. How to use damage mechanics[J]. Nuclear Engineering and Design，1984，80(2)：233–245.
[27]	郭育霞，赵永辉，冯国瑞，等. 矸石胶结充填体单轴压缩损伤破坏尺寸效应研究[J]. 岩石力学与工程学报，2021，40(12)：2 434–2 444. (GUO Yuxia，ZHAO Yonghui，FENG Guorui，et al. Study on damage size effect of cemented gangue backfill body under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(12)：2 434–2 444.(in Chinese))
[28]	刘志祥，刘青灵，党文刚. 尾砂胶结充填体损伤软–硬化本构模型[J]. 山东科技大学学报：自然科学版，2012，31(2)：36–41.(LIU Zhixiang，LIU Qingling，DANG Wengang. On Softening-hardening intrinsically constitutive model for damage of tailings-cemental filling body[J]. Journal of Shangdong University of Science and Technology：Natural Science，2012，31(2)：36–41.(in Chinese))
[29]	SIDOROFF F. Description of anisotropic damage appli-cation to elasticity[C]// IUTAM Colloquium：Physical Nonlinearities in Structural Analysis. [S. l.]：[s. n.]，1981：237–244.