橡胶水泥土动剪模量和阻尼比共振柱试验研究

摘要
图/表
参考文献(28)
相关文章 (15)

全文: PDF (2678 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要橡胶水泥土作为一种经济环保的耐腐蚀轻质填筑材料，在沿海港口工程及灯塔等基础建设中具有广泛的应用前景。基于共振柱试验，对不同橡胶掺量、水泥掺量和围压下橡胶水泥土动力特性展开研究，重点探究各影响因素对其动剪模量和阻尼比的影响规律。结果表明：固结压力下橡胶水泥土的累计轴向应变随着橡胶掺量和围压的增大而增大，随水泥掺量增大而减小；橡胶水泥土动剪模量曲线衰减程度随橡胶掺量的增加和水泥掺量的减小而减弱，非线性特征减弱，而受围压影响则较小；最大动剪模量随着橡胶掺量的增大而减小，随水泥掺量和围压的增大而增大。当橡胶掺量较低或水泥掺量较高时，其掺量改变对最大动剪模量影响最大；橡胶的掺入减缓了动剪模量衰减幅度，并且在较低围压下促使其更早地发生衰减。而水泥掺量的减小和围压的增大则会推迟衰减，衰减幅度也相对更大；阻尼比随动剪应变的增加而单调递增，增大橡胶掺量和减小围压会使其阻尼比增大，当水泥掺量小于15%时，阻尼比随水泥掺量增加而增大，而当水泥掺量大于15%时，阻尼比反而随之降低。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	郭端伟1
	2
	何杰1
	宋德新3
	王忍1
	李凤山2

关键词 ：橡胶水泥土, 动剪模量, 阻尼比, 配合比, 共振柱试验

Abstract：As an economical and environmentally friendly corrosion-resistant lightweight filler material, rubberized cemented soil has many application prospects in coastal port engineering and lighthouse foundation construction. Based on the resonant column test, we investigate the dynamic properties of rubberized cemented soil under different rubber content, cement content, and surrounding pressure and focus on the influence of each influencing factor on its dynamic shear modulus and damping ratio. Test results show that the cumulative axial strain of rubberized cemented soil under consolidation pressure increases with the increase of rubber content and surrounding pressure and decreases with the increase of cement content. The degree of attenuation of the dynamic shear modulus curve of rubberized cemented soil decreases with the increase of rubber content and the decrease of cement content, and the non-linear characteristic decreases while it is less affected by the surrounding pressure. The maximum dynamic shear modulus decreases with the increase of rubber content and increases with the increase of cement content and surrounding pressure. When the rubber content is low, or the cement content is high, the maximum dynamic shear modulus is most affected by the content change. The rubber admixture slows down the dynamic shear modulus's decay and promotes its earlier decay at lower surrounding pressure. A decrease in cement content and increase in surrounding pressure delay the decay and make the decay relatively larger. The damping ratio increases monotonically with the increase of dynamic shear strain. Increasing the rubber content and decreasing the surrounding pressure will increase the damping ratio. When the cement content is less than 15%, the damping ratio increases with the increase of cement content, while when the cement content is more than 15%, the damping ratio decreases instead.

Key words： rubberized cemented soil dynamic shear modulus damping ratio mix proportion resonant column tests

收稿日期: 2023-07-19 出版日期: 2024-06-28

引用本文:

郭端伟1, 2，何杰1，宋德新3，王忍1，李凤山2. 橡胶水泥土动剪模量和阻尼比共振柱试验研究[J]. 振动与冲击, 2024, 43(12): 266-275.
GUO Duanwei1, 2, HE Jie1, SONG Dexin3, WANG Ren1, LI Fengshan2. Resonant column tests on dynamic shear modulus and damping ratio of rubberized cemented soil. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(12): 266-275.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2024/V43/I12/266

[1] 曲锴鑫，李雪，宋鹏豪等.废旧橡胶轮胎的再利用研究进展[J].化工科技，2019，27(6)：71-75. QU Kai-xin，LI Xue，SONG Peng-hao，et al. Progress in recycling of waste tires[J]. Science ＆Technology in Chemical Industry, 2019,27 (06): 71-75. [2] RAGHAVAN D，HUYNH H，FERRARIS C F. Workability, mechanical properties, and chemical stability of a recycled tyre rubber-filled cementitious composite[J]. Journal of Materials Science, 1998, 33(7): 1745-1752. [3] AHMET TORTUM，CAFER ÇELIK，ABDULKADIR CÜNEYT AYDIN. Determination of the optimum conditions for tire rubber in asphalt concrete[J]. Building and Environment, 2004, 40(11): 1492-1504. [4] 肖衡林，王钊，张训祥. 处理废弃轮胎的一种有效方法——轮胎加筋土结构[J].环境工程，2002，20(3)：51-55，4. XIAO Heng-lin, WANG Zhao, ZHANG Xun-xiang. An effective disposal method of scrape tire—tire-reinforced soil structure[J]. Environmental Engineering, 2002, 20(3): 51-55, 4. [5] PIERCE C E，BLACKWELL M C. Potential of scrap tire rubber as lightweight aggregate in flowable fill[J]. Waste Management，2003，23(3)：197-208. [6] ZHENG Laijiu, KURODA Shin-ichi, LIU Huawu，et al. Properties of Crumb Rubber Mixed in Local Thailand Soil Cement Brick Composites[C]//Advanced Materials Research. Trans Tech Publications Ltd., 2013，821-822: 1271-1276. [7] 王凤池，燕晓，刘涛等. 橡胶水泥土强度特性与机理研究[J].四川大学学报(工程科学版)，2010，42(2)：46-51. WANG Feng-chi，YAN Xiao，LIU Tao，et al. Research on Strength Characteristics and Mechanism of Rubberized Cement-soil[J]. Journal of Sichuan University (Engineering Science Edition), 2010, 42(2): 46-51. [8] 辛凌，沈扬，刘汉龙等. 单轴压力下RST轻质土变形特性及其细观机理分析[J].河海大学学报(自然科学版)，2010，38(2)：160-164. XIN Ling，SHEN Yang，LIU Han-long，et al. Deformation behavior and its meso-mechanism analysis of lightweight soil mixed with rubber chips of scrap tires based on unconfined compressive test[J] Journal of Hohai University(Natural Sciences) 2010, 38(2): 160-164. [9] 辛凌，刘汉龙，沈扬等. 废弃轮胎橡胶颗粒轻质混合土无侧限抗压强度试验[J].解放军理工大学学报(自然科学版)，2010，11(1)：79-83. XIN Ling，LIU Han-long，SHEN Yang，et al. Unconfined compressive test of lightweight soil mixed with rubber chips of scrap tires[J]. Journal of PLA University of science and Technology(Natural Science Edition), 2010, 11(1): 79-83. [10] 辛凌，刘汉龙，沈扬等. 废弃轮胎橡胶颗粒轻质混合土强度特性试验研究[J]. 岩土工程学报，2010，32(3)：428-433. XIN Ling, LIU Han-long, SHEN Yang，et al. Consolidated undrained triaxial compression tests on lightweight soil mixed with rubber chips of scrap tires[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(3): 428-433. [11] YADAV J S，TIWARI S K，GARG A. Strength and ductility behaviour of rubberised cemented clayey soil[J]. Proceedings of the Institution of Civil Engineers-Ground Improvement, 2020, (4): 1-17. [12] YADAV J S，HUSSAIN S，TIWARI S K，et al. Assessment of the load–deformation behaviour of rubber fibre–reinforced cemented clayey soil[J]. Transportation Infrastructure Geotechnology, 2019, 6(2): 105-136. [13] YADAV J S，TIWARI S K. Assessment of geotechnical properties of uncemented/cemented clayey soil incorporated with waste crumb rubber[J]. Journal of Materials and Engineering Structures， 2017, 4(1)：37-50. [14] YADAV J S，TIWARI S K. Evaluation of the strength characteristics of cement-stabilized clay–crumb rubber mixtures for its sustainable use in geotechnical applications[J]. Environment，Development and Sustainability，2018，20(5)：1961-1985. [15] YADAV J S，HUSSAIN S，GARG A，et al. Geotechnical properties of rubber reinforced cemented clayey soil[J]. Transportation Infrastructure Geotechnology，2019，6(4)：337-354. [16] 孔德森，贾腾，王晓敏等. 废弃轮胎橡胶颗粒混合土无侧限抗压强度试验研究[J].中南大学学报(自然科学版)，2016，47(1)：225-231. KONG De-sen，JIA Teng，WANG Xiao-min，et al. Test on unconfined compressive strength of lightweight soil mixed with rubber chips of scrap tires[J]. Journal of Central South University (Science and Technology), 2016, 47(1): 225-231. [17] 王凤池，王庆龙，刘凤起等. 橡胶水泥土的抗冻性能[J].沈阳工业大学学报，2013，35(3)：350-354. WANG Feng-chi，WANG Qing-long，LIU Feng-qi，et al. Frost resistance of rubberized cement-soil[J]. Journal of Shenyang University of Technology, 2013, 35(3): 350-354. [18] WANG F C，LI Q B，LI P F. Experimental Study on Rubberized Cement-Soil Resistance to Chlorine-Ion Permeation[C]//Advanced Materials Research. Trans Tech Publications Ltd., 2011, 255-260: 2786-2790. [19] Wang Z Y, Mei G X, Yu X B. Dynamic shear modulus and damping ratio of waste granular rubber and cement soil mixtures[C]//Advanced materials research. Trans Tech Publications Ltd, 2011, 243: 2091-2094. [20] Wang Z, Mei G. Dynamic properties of rubber cement stabilized soil based on resonant column tests[J]. Marine Georesources & Geotechnology, 2012, 30(4): 333-346. [21] 王凤池,王庆龙,董明,李庆冰.橡胶水泥土动力特性的试验研究[J].防灾减灾工程学报,2014,34(02):253-258. DOI:10.13409/j.cnki.jdpme.2014.02.006. WANG Feng-chi, WANG Qing-long, DONG Ming, LI Qing-bing. Experimental study on dynamic characteristics of rubberized cemented soil[J]. Journal of Disaster Prevention and Mitigation Engineering, 2014,34 (02): 253-258 DOI:10.13409/j.cnki. jdpme. 2014.02.006. [22] Akbarimehr D, Fakharian K. Dynamic shear modulus and damping ratio of clay mixed with waste rubber using cyclic triaxial apparatus[J]. Soil Dynamics and Earthquake Engineering, 2021, 140: 106435. [23] 李晓雪,庄海洋,张沁源,陈国兴.橡胶颗粒土动剪模量与阻尼比的共振柱试验研究[J].防灾减灾工程学报,2019,39(02):265-271.DOI:10.13409/j.cnki.jdpme.2019.02.010. LI Xiao-xue, ZHUANG Hai-yang, ZHANG Qin-yuan, CHEN Guo-xing. Experimental study on dynamic shear modulus and damping ratio of rubber granular soil by resonant column method [J]. Journal of Disaster Prevention and Mitigation Engineering, 2019,39 (02): 265-271 DOI:10.13409/j.cnki. jdpme. 2019.02.010. [24] 卢震,陈开圣.橡胶黏土混合土动剪切模量及阻尼比试验研究[J].防灾减灾工程学报,2019,39(02):250-257.DOI:10.13409/j.cnki.jdpme.2019.02.008. LU Zhen, CHEN Kai-sheng. Experimental study on dynamic shear modulus and damping ratio of rubber clay mixed soil [J]. Journal of Disaster Prevention and Mitigation Engineering, 2019,39 (02): 250-257 DOI:10.13409/j.cnki. jdpme. 2019.02.008. [25] 中华人民共和国水利部.GB/T 50123-2019 土工试验方法标准[S]. 北京：中国计划出版社，2019. Ministry of Water Resources of the People's Republic of China. GB/T 50123-2019 standard for geotechnical test methods [S] Beijing: China Planning Press, 2019. [26] 谢定义. 土动力学[M]. 西安: 西安交通大学出版社, 1998. XIE Ding-yi. Soil dynamics[M]. Xi’an: The Publication of Xi’an Jiaotong University, 1988. [27] 汤峻，朱伟，李明东等. 砂土EPS颗粒混合轻质土的物理力学特性[J]. 岩土力学，2007，28(5)：1045-1049. TANG Jun，ZHU Wei，LI Ming-dong，et al. Physico-mechanical properties of sand EPS beads-mixed lightweight soil[J]. Rock and Soil Mechanics, 2007, 28(5): 1045-1049. [28] 姬凤玲. 淤泥泡沫塑料颗粒轻质混合土力学特性研究[D].河海大学,2005. JI Feng-ling Study on mechanical properties of silt foamed plastic granular light mixed soil [D] Hohai University, 2005.