• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 57 Issue 6
Dec.  2022
Turn off MathJax
Article Contents
FENG Jun, LAI Bing, ZHANG Shengliang, WANG Duo, LIU Yuan. Laboratory Pull-Out Test Study of Basalt Fiber Reinforced Polymer Bolt for Strengthening Mixed Soil[J]. Journal of Southwest Jiaotong University, 2022, 57(6): 1193-1200. doi: 10.3969/j.issn.0258-2724.20200874
Citation: FENG Jun, LAI Bing, ZHANG Shengliang, WANG Duo, LIU Yuan. Laboratory Pull-Out Test Study of Basalt Fiber Reinforced Polymer Bolt for Strengthening Mixed Soil[J]. Journal of Southwest Jiaotong University, 2022, 57(6): 1193-1200. doi: 10.3969/j.issn.0258-2724.20200874

Laboratory Pull-Out Test Study of Basalt Fiber Reinforced Polymer Bolt for Strengthening Mixed Soil

doi: 10.3969/j.issn.0258-2724.20200874
  • Received Date: 12 Jan 2021
  • Rev Recd Date: 18 May 2021
  • Available Online: 18 Jul 2022
  • Publish Date: 20 May 2021
  • Basalt fiber reinforced polymer (BFRP) has the advantages of light weight, high strength and good durability. Using the material as anchor can effectively solve the corrosion problem of traditional steel bar anchor and has a broad application prospect in engineering construction in harsh environment. Taking the collapse alluvial mixed soil which widely exists in the southwest mountainous area as the object, through the indoor pull-out test, the effects of anchor type, anchor diameter, anchorage length and grouting diameter on the ultimate pullout load and interface shear stress are studied. The failure mode and stress distribution law of the anchoring system are analyzed. The results show that the failure mode of BFRP anchor in mixed soil is shear failure along the interface between grouting body and soil, and the pull-out bearing capacity of BFRP anchor is basically the same as that of reinforced anchor, so BFRP anchor can be used to replace reinforced anchor directly in practical engineering. The pullout load-displacement curve of BFRP anchor is in the form of three stages, and the elastic critical load is 20%−28% of the ultimate load. Under the test condition, the ultimate bearing capacity of the bolt is proportional to the anchoring length and the diameter of the grout. And the circumferential crack in the grouting body makes the axial stress of the bolt in the form of a single peak and reduces the stress concentration in the front of the anchoring section. The larger the diameter of the grouting body in the mixed soil is, the lower the interface strength is, the diameter increases from 90 mm to 110 mm, and the interface strength decreases by about 8%.

     

  • loading
  • [1]
    张景科,谌文武,和法国,等. 土遗址加固中GFRP锚杆锚固性能现场试验研究[J]. 工程地质学报,2014,22(5): 804-810. doi: 10.13544/j.cnki.jeg.2014.05.005

    ZHANG Jingke, CHEN Wenwu, HE Faguo, et al. Field experimental study on anchorage perfromance of gfrp at conservation earthen sites[J]. Journal of Engineering Geology, 2014, 22(5): 804-810. doi: 10.13544/j.cnki.jeg.2014.05.005
    [2]
    王洋,冯君,李珈瑶,等. FRP锚杆在岩土锚固中的研究进展[J]. 工程地质学报,2018,26(3): 776-784. doi: 10.13544/j.cnki.jeg.2017-139

    WANG Yang, FENG Jun, LI Jiayao, et al. Advance of frp anchor bolts in geotechnical anchoring[J]. Journal of Engineering Geology, 2018, 26(3): 776-784. doi: 10.13544/j.cnki.jeg.2017-139
    [3]
    吴刚,朱莹,董志强,等. 碱性环境中BFRP筋耐腐蚀性能试验研究[J]. 土木工程学报,2014,47(8): 32-41. doi: 10.15951/j.tmgcxb.2014.08.029

    WU Gang, ZHU Ying, DONG Zhiqiang, et al. Experimental study on the corrosion resistance performance of BFRP bars in the alkaline environment[J]. China Civil Engineering Journal, 2014, 47(8): 32-41. doi: 10.15951/j.tmgcxb.2014.08.029
    [4]
    朱颖,魏永幸,蒋登伟,等. 复杂艰险山区高速铁路减灾选线设计研究[J]. 高速铁路技术,2020,11(2): 7-11,26.

    ZHU Ying, WEI Yongxing, JIANG Dengwei, et al. Research on route selection design of high-speed railway for disaster reduction in complex and dangerous mountain[J]. High Speed Railway Technology, 2020, 11(2): 7-11,26.
    [5]
    贾毅,赵人达,李福海. 高温及围岩粗糙度对锚杆灌浆料抗拔强度影响的试验研究[J]. 铁道学报,2017,39(6): 141-149. doi: 10.3969/j.issn.1001-8360.2017.06.019

    JIA Yi, ZHAO Renda, LI Fuhai. Experimental study on influence of high temperature and roughness of surrounding rock on tensile strength of bolt grouting material[J]. Journal of the China Railway Society, 2017, 39(6): 141-149. doi: 10.3969/j.issn.1001-8360.2017.06.019
    [6]
    崔凯,王东华,谌文武,等. 基于SH-(C + F)浆液锚杆锚固性能与机理研究[J]. 工程地质学报,2017,25(1): 19-26.

    CUI Kai, WANG Donghua, CHEN Wenwu, et al. Performance and mechanism of bolts fully grouted with SH-(C + F) slurry[J]. Journal of Engineering Geology, 2017, 25(1): 19-26.
    [7]
    王洋. BFRP砂浆锚杆锚固机理现场试验研究[D]. 成都: 西南交通大学, 2018.
    [8]
    吴芳. 玄武岩纤维筋与混凝土粘结性能试验研究[D]. 大连: 大连理工大学, 2009.
    [9]
    WANG H L, SUN X Y, PENG G Y, et al. Experimental study on bond behaviour between BFRP bar and engineered cementitious composite[J]. Construction and Building Materials, 2015, 95: 448-456. doi: 10.1016/j.conbuildmat.2015.07.135
    [10]
    DONG Z Q, WU G, ZHAO X L, et al. A refined prediction method for the long-term performance of BFRP bars serviced in field environments[J]. Construction and Building Materials, 2017, 155: 1072-1080. doi: 10.1016/j.conbuildmat.2017.07.154
    [11]
    张绍逸. 玄武岩纤维筋与混凝土粘结锚固性能试验研究[D]. 哈尔滨: 东北林业大学, 2013.
    [12]
    李国维,黄志怀,张丹,等. 玻璃纤维增强聚合物锚杆承载特征现场试验[J]. 岩石力学与工程学报,2006,25(11): 2240-2246. doi: 10.3321/j.issn:1000-6915.2006.11.012

    LI Guowei, HUANG Zhihuai, ZHANG Dan, et al. Field test on load-bearing character of glass fiber reinforced polymer bolt[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(11): 2240-2246. doi: 10.3321/j.issn:1000-6915.2006.11.012
    [13]
    曾宪明,林大路,李世民,等. 锚固类结构杆体临界锚固长度问题综合研究[J]. 岩石力学与工程学报,2009,28(增2): 3609-3625. doi: 10.3321/j.issn:1000-6915.2009.z2.046

    ZENG Xianming, LIN Dalu, LI Shimin, et al. Comprehensive research of critical anchorage length problem of rod of anchorage structure[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(S2): 3609-3625. doi: 10.3321/j.issn:1000-6915.2009.z2.046
    [14]
    张乐文,汪稔. 岩土锚固理论研究之现状[J]. 岩土力学,2002,23(5): 627-631. doi: 10.3969/j.issn.1000-7598.2002.05.022

    ZHANG Lewen, WANG Ren. Research on status quo of anchorage theory of rock and soil[J]. Rock and Soil Mechanics, 2002, 23(5): 627-631. doi: 10.3969/j.issn.1000-7598.2002.05.022
    [15]
    吕东. 粗颗粒含量对川西崩坡积混合土静、动强度特性的影响研究[D]. 成都: 西南交通大学, 2017.
    [16]
    傅华,韩华强,凌华. 堆石料级配缩尺方法对其室内试验结果的影响[J]. 岩土力学,2012,33(9): 2645-2649. doi: 10.16285/j.rsm.2012.09.030

    FU Hua, HAN Huaqiang, LING Hua. Effect of grading scale method on results of laboratory tests on rockfill materials[J]. Rock and Soil Mechanics, 2012, 33(9): 2645-2649. doi: 10.16285/j.rsm.2012.09.030
    [17]
    郭万里,朱俊高,温彦锋. 对粗粒料4种级配缩尺方法的统一解释[J]. 岩土工程学报,2016,38(8): 1473-1480. doi: 10.11779/CJGE201608015

    GUO Wanli, ZHU Jungao, WEN Yanfeng. Unified description for four grading scale methods for coarse aggregate[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(8): 1473-1480. doi: 10.11779/CJGE201608015
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(11)  / Tables(7)

    Article views(437) PDF downloads(62) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return