纤维混凝土隧道衬砌力学性能研究综述
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摘要
混凝土是由细骨料、粗骨料、水泥等材料组成的一种复合材料,在混凝土基体中掺入纤维可在一定程度上改善混凝土的性能。文章主要从静力学和动力学两个方面对目前国内外关于纤维混凝土隧道衬砌力学性能的研究现状展开阐述和分析,在静力学方面主要从纤维掺量、纤维种类、形状、承载力计算方法等方面对其抗压、抗剪以及韧性性能进行了深入的研究和探讨;在动力学方面主要分析研究了纤维混凝土结构的变形破坏机制以及纤维的种类、掺量、尺寸大小等对纤维混凝土的抗震、抗冲击和抗爆三个方面的影响。结果表明,在混凝土中掺入一定量的纤维后,其抗压、抗剪以及韧性性能都得到明显的提高;在混凝土中加入纤维能够阻止混凝土内部裂纹的产生和发展,改善混凝土在动力响应作用下的结构变形;如何充分发挥纤维混凝土的韧性性能以及确保复杂地质条件下纤维混凝土隧道衬砌结构的安全性是今后研究的热点和难点。
Concrete is a kind of composite material composed of fine aggregate,coarse aggregate,cement etc.,and the behavior of concrete can be improved if certain amount of fibers are added to the concrete matrix.This paper described and analyzed present status of research on mechanical behaviors of tunnel fiber reinforced concrete lining from static and dynamic aspects.A further study and discussion on the behaviors of compression resistance,shearing resistance and toughness were conducted in terms of fiber content,fiber type,fiber shape,bearing capacity calculation method and so on from the perspective of statics;the deformation failure mechanism of fiber reinforced concrete structure,and the effect of fiber type,fiber content,size etc.on aseismic capacity,shock resistance and explosion resistance of fiber reinforced concrete were analyzed from the perspective of dynamics.The results show that the behaviors of compression resistance,shearing resistance and toughness are significantly improved if certain amount of fibers are added into concrete;it will prevent from cracking and development inside of concrete and improve the structure deformation of concrete under the effect of dynamic response if fiber is added into concrete;it is significant to give full play to the toughness of fiber reinforced concrete and ensure safety of tunnel fiber reinforced concrete lining under complex geological conditions.
Concrete is a kind of composite material composed of fine aggregate,coarse aggregate,cement etc.,and the behavior of concrete can be improved if certain amount of fibers are added to the concrete matrix.This paper described and analyzed present status of research on mechanical behaviors of tunnel fiber reinforced concrete lining from static and dynamic aspects.A further study and discussion on the behaviors of compression resistance,shearing resistance and toughness were conducted in terms of fiber content,fiber type,fiber shape,bearing capacity calculation method and so on from the perspective of statics;the deformation failure mechanism of fiber reinforced concrete structure,and the effect of fiber type,fiber content,size etc.on aseismic capacity,shock resistance and explosion resistance of fiber reinforced concrete were analyzed from the perspective of dynamics.The results show that the behaviors of compression resistance,shearing resistance and toughness are significantly improved if certain amount of fibers are added into concrete;it will prevent from cracking and development inside of concrete and improve the structure deformation of concrete under the effect of dynamic response if fiber is added into concrete;it is significant to give full play to the toughness of fiber reinforced concrete and ensure safety of tunnel fiber reinforced concrete lining under complex geological conditions.
引文
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[2]YINING DING,WOLFGANG KUSTERLE.Compressive Stress-strain Relationship of Steel Fibre-reinforced Concrete at Early Age[J].Cement and Concrete Research,2000,30(10):1573-1579.
[3]PATEL V R,RANA A,PANDYA I I.Shear Strength of Polypropylene Fiber Reinforced Concrete Moderate Deep Beams without Stirrups[J].Journal of Structural Engineering,2010,337(5):364-368.
[4]王新忠,李传习.玄武岩纤维混凝土长柱偏心受压承载能力试验研究[J].硅酸盐通报,2016,35(10):3242-3246.WANG Xinzhong,LI Chuanxi.Experimental Study on Load-carrying Capacity of Basalt Fiber Reinforced Concrete Long Columns under Eccentric Compression[J].Bulletin of the Chinese Ceramic Society,2016,35(10):3242-3246.
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[6]杨彬.聚丙烯纤维对高强混凝土抗压强度的影响研究[J].混凝土与水泥制品,2017(2):55-59.YANG Bin.Study on the Effect of Polypropylene Fiber on Compressive Strength of High Strength Concrete[J].China Concrete and Cement Products,2017(2):55-59.
[7]李振宇.喷射钢纤维混凝土衬砌力学特性研究[D].淮南:安徽理工大学,2014.LI Zhenyu.Study on Mechanical Characteristics of Steel Fiber Reinforced Shotcrete Lining[D].Huainan:Anhui University of Science&Technology,2014.
[8]闫治国,朱合华,廖少明,等.地铁隧道钢纤维混凝土管片力学性能研究[J].岩石力学与工程学报,2006(增1):2888-2893.YAN Zhiguo,ZHU Hehua,LIAO Shaoming,et al.A Study on Performance of Steel Fiber Reinforced Concrete Segment[J].Chinese Journal of Rock Mechanics and Engineering,2006(S1):2888-2893.
[9]王帅帅,高波,李志业,等.钢筋钢纤维混凝土地下结构构件承载力计算方法研究[J].现代隧道技术,2015(5):1-9.WANG Shuaishuai,GAO bo,LI Zhiye,et al.Calculation Methods for the Bearing Capacity of SFRC Underground Structural Members[J].Modern Tunnelling Technology,2015(5):1-9.
[10]P S SONG,S HWANG,B C SHEU.Strength Properties of Nylon and Polypropylene Fiber-reinforced Concretes[J].Cement and Concrete Research,2005,35(8):1546-1550.
[11]PATEL V R,RANA A,PANDYA I I.Shear Strength of Polypropylene Fiber Reinforced Concrete Moderate Deep Beams without Stirrups[J].Journal of Structural Engineering,2010,37(5):364-368.
[12]杨萌,黄承逵,刘毅.钢纤维高强混凝土抗剪性能试验研究[J].大连理工大学学报,2005,(6):842-846.YANG Meng,HUANG Chengkui,LIU Yi.Experimental Research on Shear Behavior of High-strength SFRC[J].Journal of Dalian University of Technology,2005,45(6):842-846.
[13]郭艳华,刘建红,李志业.钢纤维混凝土压剪破坏研究[J].建筑材料学报,2008,11(2):152-156.GUO Yanhua,LIU Jianhong,LI Zhiye.Study on Compression Shear Failure of Steel Fiber Reinforced Concrete[J].Journal of Building Materials,2008,11(2):152-156.
[14]高丹盈,朱海堂,汤寄予.纤维高强混凝土抗剪性能的试验研究[J].建筑结构学报,2004,25(6):88-92+98.GAO Danying,ZHU Haitang,TANG Jiyu.Experimental Study on Behavior of Fiber Reinforced High-Strength Concrete under Shear[J].Journal of Building Structures,2004,25(6):88-92+98.
[15]徐海宾,邓宗才,陈春生,等.超高性能纤维混凝土梁抗剪性能试验研究[J].土木工程学报,2014,47(12):91-97.XU Haibin,DENG Zongcai,CHEN Chunsheng,et al.Experimental Study on Shear Strength of Ultra-high Performance Fiber Reinforced Concrete Beams[J].China Civil Engineering Journal,2014,47(12):91-97.
[16]刘建红.钢纤维混凝土的压剪性能在隧道衬砌设计中的应用[D].成都:西南交通大学,2006.LIU Jianhong.Application of Compression-shear Strength of Steel Fiber Reinforced Concrete in the Design of Tunnel Lining[D].Chengdu:Southwest Jiaotong University,2006.
[17]李为民,许金余.玄武岩纤维对混凝土的增强和增韧效应[J].硅酸盐学报,2008,36(4):476-481+486.LI Weimin,XU Jinyu.Strengthening and Toughening in Basalt Fiber-reinforced Concrete[J].Journal of the Chinese Ceramic Society,2008,36(4):476-481+486.
[18]赵顺波,孙晓燕,李长永,等.高强钢纤维混凝土弯曲韧性试验研究[J].建筑材料学报,2003,6(1):95-99.ZHAO Shunbo,SUN Xiaoyan,LI Changyong,et al.Flexural Toughness of Steel Fiber Reinforced High-strength Concrete[J].Journal of Building Materials,2003,6(1):95-99.
[19]王乐明.钢纤维混凝土韧性特征及其支护力学行为研究[D].成都:西南交通大学,2011.WANG Leming.Study on Characteristics of Toughness and Support Mechanical Behavior of Steel Fiber Reinforced Concrete[D].Chengdu:Southwest Jiaotong University,2011.
[20]郭艳华.钢纤维混凝土增韧性能研究及韧性特征在地下结构计算中的应用[D].成都:西南交通大学,2008.GUO Yanhua.Research on the Ductility of the Steel Fiber Reinforced Concrete and its Application in the Underground Structure Calculation[D].Chengdu:Southwest Jiaotong University,2008.
[21]崔光耀,王道远,倪嵩陟,等.软弱围岩隧道钢纤维混凝土衬砌承载特性模型试验研究[J].岩土工程学报,2016,39(10):1-7.CUI Guangyao,WANG Daoyuan,NI Songzhi,et al.Model Test Study on Bearing Characteristics of Steel Fiber-reinforced Concrete Lining of Weak Surrounding Rock Tunnel[J].Chinese Journal of Geotechnical Engineering,2016,39(10):1-7.
[22]JOHN S LAWLER,DAVIDE ZAMPINI,SURENDRA P SHAH.Microfiber and Macro Fiber Hybrid Fiber-reinforced Concrete[J].Journal of Materials in Civil Engineering,2005,17(5):595-604.
[23]L G SORELLI,A MEDA,G A PLIZZARI.Bending and Uniaxial Tensile Tests on Concrete Reinforced with Hybrid Steel Fibers[J].Journal of Materials in Civil Engineering,2005,17(5):519-527.
[24]C ALLEN ROSS,JOSEPH W TEDESCO,STEVEN T KUENNEN.Effects of Strain Rate on Concrete Strength[J].ACI Materials Journal,1995,92(1):37-47.
[25]窦国钦,杜修力,李亮.冲击荷载作用下钢纤维混凝土配筋梁性能试验[J].天津大学学报(自然科学与工程技术版),2015(10):864-872.DOU Guoqin,DU Xiuli,LI Liang.Performance Test of Steel Fiber Reinforced Concrete under Impact Load[J].Journal of Tianjin University(Science and Technology),2015(10):864-872.
[26]赵庆新,董进秋,潘慧敏,等.玄武岩纤维增韧混凝土冲击性能[J].复合材料学报,2010(6):120-125.ZHAO Qingxin,DONG Jinqiu,PAN Huimin,et al.Impact Behavior of Basalt Fiber Reinforced Concrete[J].Acta Materiae Compositae Sinica,2010(6):120-125.
[27]王璞,黄真,周岱,等.碳纤维混杂纤维混凝土抗冲击性能研究[J].振动与冲击,2012(12):14-18.WANG Pu,HUANG Zhen,ZHOU Dai,et al.Impact Mechanical Properties of Concrete Reinforced with Hybrid Carbon Fibers[J].Journal of Vibration and Shock,2012(12):14-18.
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