考虑衬垫布置型式的平原型填埋场动力响应与变形分析
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摘要
填埋法是我国垃圾的主要处置手段,衬垫系统是垃圾填埋场的重要部分。衬垫界面的动力剪切强度较低,在地震作用下填埋场极易沿衬垫界面发生整体失稳破坏。首先建立了界面动力模型和垃圾土黏弹性动力本构,考虑光面衬垫和糙面衬垫的差异性,建立了四种不同衬垫布置形式平原型填埋场动力分析模型,研究衬垫布置形式对平原型填埋场动力稳定性的影响。研究结果表明,衬垫布置形式对平原型填埋场顶部的动力响应与变形影响不大,采用糙面衬垫布置形式能够大幅减小平原型填埋场底部位置的永久变形,有利于提升填埋场的动力稳定性,对平原型填埋场衬垫系统的抗震设计有指导意义。
Landfills are mostly being used for disposing municipal solid waste in China,and a liner system is of huge significance in landfills.The landfill liner interface is of low dynamic shear strength,leading to a potential sliding failure along the liner interface under earthquakes.In this study,the dynamic interface model of landfill liner and visco-elastic dynamic constitutive model of waste are established and embedded in a numerical analysis platform.Four numerical models of area landfills with different types of liner layout are established involving different combinations of smooth liner and textured liner.The research results show that the liner layout has a little effect on the dynamic response and deformation of the top positions of the area landfill.The liner of textured geomenbrane can greatly reduce the permanent deformation of the bottom positions of the area landfill,which is beneficial to the seismic stability of the area landfill.The research results are instructive for the seismic design of the liner system of the area landfill.
Landfills are mostly being used for disposing municipal solid waste in China,and a liner system is of huge significance in landfills.The landfill liner interface is of low dynamic shear strength,leading to a potential sliding failure along the liner interface under earthquakes.In this study,the dynamic interface model of landfill liner and visco-elastic dynamic constitutive model of waste are established and embedded in a numerical analysis platform.Four numerical models of area landfills with different types of liner layout are established involving different combinations of smooth liner and textured liner.The research results show that the liner layout has a little effect on the dynamic response and deformation of the top positions of the area landfill.The liner of textured geomenbrane can greatly reduce the permanent deformation of the bottom positions of the area landfill,which is beneficial to the seismic stability of the area landfill.The research results are instructive for the seismic design of the liner system of the area landfill.
引文
[1] 中华人民共和国住房和城乡建设部,中华人民共和国国家质量监督检验检疫总局.GB 50869—2013 生活垃圾卫生填埋处理技术规范[S].北京:中国建筑工业出版社,2013.Ministry of Housing and Urban-Rural Development of People’s Republic of China,General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China.GB 50869—2013 Technical code for municipal solid waste sanitary landfill[S].Beijing:China Architecture and Building Press,2013.(in Chinese)
[2] 中华人民共和国住房和城乡建设部.CJJ 176—2012 生活垃圾体卫生填埋场岩土工程技术规范[S].北京:中国建筑工业出版社,2012.Ministry of Housing and Urban-Rural Development of People’s Republic of China.CJJ 176—2012 Technical code for geotechnical engineering of municipal solid waste sanitary landfill [S].Beijing:China Architecture and Building Press,2012.(in Chinese)
[3] Augello A J,Bray J D,Leonards G A,et al.Response of landfills to seismic loading[J].Geoenvironment 2000:Characterization,Containment,Remediation,and Performance in Environmental Geotechnics,ASCE,1995:1051-1065.
[4] Bray J D,Augello A J,Leonards G A,et al.Seismic stability procedures for solid-waste landfills.Journal of Geotechnical Engineering,1995,121(2):139-151.
[5] Bray J D,Rathje E M.Earthquake-induced displacements of solid-waste landfills[J].Journal of Geotechnical and Geoenvironmental Engineering,1998,124(3):242-253.
[6] 邓学晶.城市垃圾填埋场振动台模型试验与地震稳定性分析方法研究[D].大连:大连理工大学,2007.Deng Xuejing.Research on shaking table model test and seismic stability analysis method of MSW landfill[D].Dalian:Dalian University of Technology,2007.(in Chinese)
[7] Newmark N M.Effects of earthquakes on dams and embankments.Geotechnique,1965,15(2):139-160.
[8] Rathje E M,Bray J D.Nonlinear coupled seismic sliding analysis of earth structures[J].Journal of Geotechnical and Geoenvironmental Engineering,2000,126 (11):1002-1013.
[9] Rathje E M,Bray J D.One and two dimensional seismic analysis of solid-waste landfills[J].Canadian Geotechnical Journal,2001,38:850-862.
[10] 刘君,孔宪京.卫生填埋场复合边坡地震稳定性和永久变形分析[J].岩土力学,2004,25(5):778-782.Liu Jun,Kong Xianjing.Seismic stability and permanent deformation analysis of composite slope of landfill[J].Rock and Soil Mechanics,2004,25(5):778-782.(in Chinese)
[11] 柯瀚,陈云敏,凌道盛,等.城市垃圾填埋场地震稳定分析及永久位移计算[J].地震学报,2001(2):204-212.Ke Han,Chen Yunmin,Ling Daosheng,et al.Seismic stability analysis and permanent displacement calculation of MSW Landfill[J].Acta Seismologica Sinica,2001(2):204-212.(in Chinese)
[12] Zania V,Tsompanakis Y,Psarropoulos P N.Seismic distress and slope instability of municipal solid waste landfills[J].Journal of Earthquake Engineering 2008,12(2):312-340.
[13] Zania V,Tsompanakis Y,Psarropoulos P N.Seismic displacement of landfills and deformation of geosynthetic due to base sliding[J].Geotextiles and Geomembranes,2010,28:491-502.
[14] Feng S J,Shen Y,Huang R Q,et al.Seismic response and permanent displacement of landfills with liner interfaces and various foundation types[J].Environmental Earth Sciences,2015,74(6):4853-4863.
[15] 席永慧,郭丽南,王化祺,等.填埋场动力响应的三维数值模拟分析[J].结构工程师,2016,32(6):50-57.Xi Yonghui,Guo Linan,Wang Huayu,et al.3D Numerical simulation analysis of dynamic response of landfill[J].Structural Engineer,2016,32(6):50-57.(in Chinese)
[16] 席永慧,熊浩.老港填埋场的稳定性三维数值模拟分析[J].结构工程师,2011,27(5):78-84.Xi Yonghui,Xiong Hao.Three-dimensional numerical simulation analysis of stability of laogang landfill[J].Structural Engineer,2011,27(5):78-84.(in Chinese)
[17] Arab M.The integrity of geosynthetic elements of waste containment barrier systems subject to seismic loading[D].PhD Thesis,Arizona State University,2011.
[18] Kavazanjian E,Arab M,Matasovic N.Performance based design for seismic design of geosynthetics-lined wastecontainment systems[J].Earthquake Geotechnical Engineering Design,2014,pp.363-385.
[19] Feng S J,Chang J Y,Chen H X.Seismic analysis of landfill considering the effect of GM-GCL interface within liner[J].Soil Dynamics and Earthquake Engineering,2018,107:152-163.
[20] 冯世进.城市固体废弃物静动力强度特性及填埋场的稳定性分析[D].杭州:浙江大学,2005.Feng Shijin.Static and dynamic strength characteristics of municipal solid waste and stability analysis of landfill[D].Hangzhou:Zhejiang University,2005.(in Chinese)
[21] Richardson G N,Kavazanjian E,Matasovic N.RCRA Subtitle D (258).Seismic design guidance of municipal solid waste landfill facilities[S].U.S.EPA,Washington,D.C,1995.
[2] 中华人民共和国住房和城乡建设部.CJJ 176—2012 生活垃圾体卫生填埋场岩土工程技术规范[S].北京:中国建筑工业出版社,2012.Ministry of Housing and Urban-Rural Development of People’s Republic of China.CJJ 176—2012 Technical code for geotechnical engineering of municipal solid waste sanitary landfill [S].Beijing:China Architecture and Building Press,2012.(in Chinese)
[3] Augello A J,Bray J D,Leonards G A,et al.Response of landfills to seismic loading[J].Geoenvironment 2000:Characterization,Containment,Remediation,and Performance in Environmental Geotechnics,ASCE,1995:1051-1065.
[4] Bray J D,Augello A J,Leonards G A,et al.Seismic stability procedures for solid-waste landfills.Journal of Geotechnical Engineering,1995,121(2):139-151.
[5] Bray J D,Rathje E M.Earthquake-induced displacements of solid-waste landfills[J].Journal of Geotechnical and Geoenvironmental Engineering,1998,124(3):242-253.
[6] 邓学晶.城市垃圾填埋场振动台模型试验与地震稳定性分析方法研究[D].大连:大连理工大学,2007.Deng Xuejing.Research on shaking table model test and seismic stability analysis method of MSW landfill[D].Dalian:Dalian University of Technology,2007.(in Chinese)
[7] Newmark N M.Effects of earthquakes on dams and embankments.Geotechnique,1965,15(2):139-160.
[8] Rathje E M,Bray J D.Nonlinear coupled seismic sliding analysis of earth structures[J].Journal of Geotechnical and Geoenvironmental Engineering,2000,126 (11):1002-1013.
[9] Rathje E M,Bray J D.One and two dimensional seismic analysis of solid-waste landfills[J].Canadian Geotechnical Journal,2001,38:850-862.
[10] 刘君,孔宪京.卫生填埋场复合边坡地震稳定性和永久变形分析[J].岩土力学,2004,25(5):778-782.Liu Jun,Kong Xianjing.Seismic stability and permanent deformation analysis of composite slope of landfill[J].Rock and Soil Mechanics,2004,25(5):778-782.(in Chinese)
[11] 柯瀚,陈云敏,凌道盛,等.城市垃圾填埋场地震稳定分析及永久位移计算[J].地震学报,2001(2):204-212.Ke Han,Chen Yunmin,Ling Daosheng,et al.Seismic stability analysis and permanent displacement calculation of MSW Landfill[J].Acta Seismologica Sinica,2001(2):204-212.(in Chinese)
[12] Zania V,Tsompanakis Y,Psarropoulos P N.Seismic distress and slope instability of municipal solid waste landfills[J].Journal of Earthquake Engineering 2008,12(2):312-340.
[13] Zania V,Tsompanakis Y,Psarropoulos P N.Seismic displacement of landfills and deformation of geosynthetic due to base sliding[J].Geotextiles and Geomembranes,2010,28:491-502.
[14] Feng S J,Shen Y,Huang R Q,et al.Seismic response and permanent displacement of landfills with liner interfaces and various foundation types[J].Environmental Earth Sciences,2015,74(6):4853-4863.
[15] 席永慧,郭丽南,王化祺,等.填埋场动力响应的三维数值模拟分析[J].结构工程师,2016,32(6):50-57.Xi Yonghui,Guo Linan,Wang Huayu,et al.3D Numerical simulation analysis of dynamic response of landfill[J].Structural Engineer,2016,32(6):50-57.(in Chinese)
[16] 席永慧,熊浩.老港填埋场的稳定性三维数值模拟分析[J].结构工程师,2011,27(5):78-84.Xi Yonghui,Xiong Hao.Three-dimensional numerical simulation analysis of stability of laogang landfill[J].Structural Engineer,2011,27(5):78-84.(in Chinese)
[17] Arab M.The integrity of geosynthetic elements of waste containment barrier systems subject to seismic loading[D].PhD Thesis,Arizona State University,2011.
[18] Kavazanjian E,Arab M,Matasovic N.Performance based design for seismic design of geosynthetics-lined wastecontainment systems[J].Earthquake Geotechnical Engineering Design,2014,pp.363-385.
[19] Feng S J,Chang J Y,Chen H X.Seismic analysis of landfill considering the effect of GM-GCL interface within liner[J].Soil Dynamics and Earthquake Engineering,2018,107:152-163.
[20] 冯世进.城市固体废弃物静动力强度特性及填埋场的稳定性分析[D].杭州:浙江大学,2005.Feng Shijin.Static and dynamic strength characteristics of municipal solid waste and stability analysis of landfill[D].Hangzhou:Zhejiang University,2005.(in Chinese)
[21] Richardson G N,Kavazanjian E,Matasovic N.RCRA Subtitle D (258).Seismic design guidance of municipal solid waste landfill facilities[S].U.S.EPA,Washington,D.C,1995.
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