纤维底渣混合土循环剪切性能研究

doi:10.13722/j.cnki.jrme.2020.0395

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1961 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract As one of the common solid wastes，municipal solid waste incineration(MSWI) bottom ash can be mixed with fibers to improve its strength and stability. In this paper，in order to investigate the characteristics of fiber-reinforced bottom ash mixed clay soil under different vertical stresses，different shear displacement amplitudes and different degrees of compaction，large direct shear tests before and after cyclic shear and cyclic shear tests were carried out on the mixture of MSWI-clay-polypropylene fiber at a certain ratio. The test results show that the shear displacement and shear stress curves in the monotonic direct shear tests present weak hardening phenomenon while that the shear stress-displacement curves present obvious softening in the monotonic direct shear tests after cyclic shear. During the cyclic shear process，the soil samples show cyclic shear hardening and shear shrinkage under different vertical stresses and different shear displacement amplitudes. As the number of cycles increases，the degree of hardening and the amount of shear shrinkage gradually decrease. With increasing the degree of compaction，the specimen develops from a clear hardened type to a softened type. The greater the degree of compaction，the less the amount of settlement and the smaller the amount of shear shrinkage. Comparing the results of cyclic monotonic direct shear test after cyclic shear and non-cyclic monotonic direct shear test，it is found that the shear strength of the soil sample after cyclic shear increases significantly，and the cohesion and friction angle increase accordingly. The addition of polypropylene fibers can form a spatial network skeleton with the bottom ash mixed soil，thereby increasing the resistance of the sample against deformation，improving stability and reducing vertical settlement.

Key words： soil mechanics MSWI bottom ash bottom ash mixed clay soil cyclic shear test monotonic shear test fiber reinforcement

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Lihua1
	2
	ZANG Tianbao1
	2
	LIU Yongli1
	2
	XIAO Henglin1
	2
	LI Wentao1
	2

Cite this article:

LI Lihua1,2,ZANG Tianbao1, et al. Cyclic shear performance of fiber bottom ash mixed soils[J]. , 2021, 40(1): 196-205.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0395 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I1/196

[1] 李丽华，余肖婷，肖衡林，等. 稻壳灰加筋土力学性能研究[J]. 岩土力学，2020，31(3)：2 168﹣2 178.(LI Lihua，YU Xiaoting，XIAO Henglin，et al. Study on mechanical properties of rice husk ash reinforced soil[J]. Rock and Soil Mechanics，2020，31(3)：2 168–2 178.(in Chinese))
[2] 李丽华，文贝，胡智，等. 建筑垃圾填料与土工合成材料加筋剪切性能研究[J]. 武汉大学学报：工学版，2019，52(4)：311–316.(LI Lihua，WEN Bei，HU Zhi，et al. Study on shear performance of construction waste filling and geosynthetics reinforced[J]. Journal of Wuhan University：Engineering，2019，52(4)：311–316.(in Chinese))
[3] LINAK W P，WENDT J O. Toxic metal emissions from incineration：mechanisms and control[J]. Progress in Energy and Combustion Science，1993，19(2)：145–185.
[4] SABBAS T，POLETTINI A，POMI R，et al. Management of municipal solid waste incineration residues[J]. Waste Management，2003，23(1)：61–88.
[5] LAM C H，IP A W，BARFORD J P，et al. Use of incineration MSW ash：a review[J]. Sustainability，2010，2(7)：1 943–1 968.
[6] 徐谦，肖衡林. 城市生活垃圾焚烧底渣特性试验研究[J]. 环境工程，2014，32(10)：104–107.(XU Qian，XIAO Henglin. Experimental research on characteristics of bottom slag from municipal solid waste incineration[J]. Environmental Engineering，2014，32(10)：104–107.(in Chinese))
[7] 张永涛，张增强，唐次来，等. 焦作垃圾焚烧厂焚烧灰渣及烟气污染分析[J]. 环境卫生工程，2006，14(6)：6–9.(ZHANG Yongtao，ZHANG Zengqiang，TANG Cilai，et al. Analysis of incineration ash and flue gas pollution in Jiaozuo garbage incineration plant[J]. Environmental Sanitation Engineering，2006，14(6)：6–9.(in Chinese))
[8] 李定龙，冯俊生，王晋. 城市生活垃圾焚烧灰渣浸出试验[J]. 城市环境与城市生态，2004，(3)：14–16.(LI Dinglong，FENG Junsheng，WANG Jin. Leaching test of ash from municipal solid waste incineration[J]. Urban Environment and Urban Ecology，2004，(3)：14–16.(in Chinese))
[9] FORTEZA R，FAR M，SEGUI C. Characterization of bottom ash in municipal solid waste incinerators for its use in road base[J]. Waste Management，2004，24(9)：899–909.
[10] IZQUIERDO M，ÁNGEL LÓPEZ-SOLER，RAMONICH E V，et al. Characterisation of bottom ash from municipal solid waste incineration in Catalonia[J]. Journal of Chemical Technology and Biotechnology，2002，77(5)：576–583.
[11] LE N H，RAZAKAMANANTSOA A，NGUYEN M L，et al. Evaluation of physicochemical and hydromechanical properties of MSWI bottom ash for road construction[J]. Waste Management，2018，80(10)：168–174.
[12] 卢佩霞，殷成胜，王会芳. 垃圾炉渣用于路基填筑的土工特性试验分析[J]. 筑路机械与施工机械化，2015，32(9)：51–54.(LU Peixia，YIN Chengsheng，WANG Huifang. Test and analysis of geotechnical characteristics of waste slag used in subgrade filling[J]. Road construction machinery and construction mechanization，2015，32(9)：51–54.(in Chinese))
[13] 中华人民共和国行业标准编写组. JTG E40—2007 公路土工试验规程[S]. 北京：人民交通出版社，2007.(The Professional Standards Compilation Group of the People's Republic of China. JTG E40—2007 Highway Geotechnical Test Regulations[S]. Beijing：China Communications Press，2007.(in Chinese))
[14] 赵明华. 土力学与基础工程[M]. 武汉：武汉理工大学出版社，2009：46–120.(ZHAO Minghua. Soil mechanics and basic engineering[M]. Wuhan：Wuhan University of Technology Press，2009：46–120.(in Chinese))
[15] LI L H，ZHANG J，XIAO H L，et al. Experimental investigation of mechanical behaviors of fiber-reinforced fly ash-soil mixture[J]. Advances in Materials Science and Engineering，2019，DOI：10.1155/2019/1050536
[16] 李广信，陈轮. 纤维加筋黏性土的试验研究[J]. 水利学报，2017，50(6)：31–36.(LI Guangxin，CHEN Lun. Experimental study on fiber reinforced clay[J]. Journal of Hydraulic Engineering，2017，50(6)：31–36.(in Chinese))
[17] 李丽华，万畅，刘永莉，等. 玻璃纤维加筋砂土剪切强度特性研究[J]. 武汉大学学报：工学版，2017，50(1)：102–106.(LI Lihua，WAN Chang，LIU Yongli，et al. Study on shear strength characteristics of glass fiber reinforced sand[J]. Journal of Wuhan University：Engineering，2017，50(1)：102–106.(in Chinese))
[18] SAYEED M M A，RAMAIAH B J，RAWAL A. Interface shear characteristics of jute/polypropylene hybrid nonwoven geotextiles and sand using large size direct shear test[J]. Geotextiles and Geomembranes，2014，42(1)：63–68.
[19] FERREIRA F，VIEIRA C，MARIA D L L. Cyclic and post-cyclic shear behaviour of a granite residual soil-geogrid interface[J]. Procedia Engineering，2016，143(3)：379–386.
[20] ASADZADEH M，SOROUSH A. Macro- and micromechanical evaluation of cyclic simple shear test by discrete element method[J]. Particuology，2016：43(3)：942–953.
[21] WANG J，LIU F Y，WANG P，et al. Particle size effects on coarse soil-geogrid interface response in cyclic and post-cyclic direct shear tests[J]. Geotextiles and Geomembranes，2016，44(6)：854–861.
[22] CABALAR A F. Stress fluctuations in granular material response during cyclic direct shear test[J]. Granular Matter，2015，17(4)：439–446.
[23] ANUBHAV，BASUDHAR P K. Modeling of soil-woven geotextile interface behavior from direct shear test results[J]. Geotextiles and Geomembranes，2010，28(4)：403–408.
[24] 徐超，陈洪帅，石志龙，等. 筋–土界面力学特性的水平循环剪切试验研究[J]. 岩土力学，2013，34(6)：1 553–1 559.(XU Chao，CHEN Hongshuai，SHI Zhilong，et al. Horizontal cyclic shear test research on the mechanical properties of the reinforcement-soil interface[J]. Rock and Soil Mechanics，2013，34(6)：1 553–1 559.(in Chinese))
[25] 刘飞禹，林旭，王军，等. 循环剪切作用对格栅与砂土界面剪切特性的影响[J]. 中国公路学报，2015，28(2)：1–7.(LIU Feiyu，LIN Xu，WANG Jun，et al. The influence of cyclic shear on the shear characteristics of the interface between grid and sand[J]. Journal of China Highway，2015，28(2)：1–7.(in Chinese))
[26] 王军，王攀，刘飞禹，等. 密实度不同时格栅–砂土界面循环剪切及其后直剪特性[J]. 岩土工程学报，2015，38(2)：342–349. (WANG Jun，WANG Pan，LIU Feiyu，et al. Cyclic shear and post-direct shear characteristics of grid-sand interface with different densities[J]. Chinese Journal of Geotechnical Engineering，2015，38(2)：342–349.(in Chinese))
[27] 赖丰文，李丽萍，陈福全. 双向土工格栅与砂土界面循环剪切特性研究[J]. 中国科技论文，2017，12(13)：342–349.(LAI Fengwen，LI Liping，CHEN Fuquan. Study on cyclic shear characteristics of two-way geogrid and sand interface[J]. China Science and Technology Papers，2017，12(13)：342–349.(in Chinese))
[28] 徐小东，鲁洋，毛航宇，等. 废旧轮胎颗粒–砂混合物的水平循环剪切特性试验研究[J]. 郑州大学学报：工学版，2015，36(4)：62–65.(XU Xiaodong，LU Yang，MAO Hangyu，et al. Experimental research on horizontal cyclic shear characteristics of waste tire particle-sand mixture[J]. Journal of Zhengzhou University：Engineering，2015，36(4)：62–65.(in Chinese))
[29] CABALAR A F，HASAN R A. Compressional behaviour of various size/shape sand-clay mixtures with different pore fluids[J]. Engineering Geology，2013，164(2013)：36–49.
[30] 张艳美，张旭东，张鸿儒. 土工合成纤维土补强机制试验研究及工程应用[J]. 岩土力学，2005，26(8)：1 323–1 326.(ZHANG Yanmei，ZHANG Xudong，ZHANG Hongru. Experimental research and engineering application of geosynthetic fiber soil reinforcement mechanism[J]. Rock and Soil Mechanics，2005，26(8)：1 323–1 326. (in Chinese))
[31] DASAKA S M，SUMESH K S. Effect of Coir fiber on the stress- strain behavior of a reconstituted fine-grained soil[J]. Journal of Natural Fibers，2011，8(3)：189–204.
[32] SILVER N L，SEED H B. Volume changes in sands during cyclic loading[J]. Journal of Soil Mechanics and Foundations Division，1971，97(9)：1 171–1 182.