减法负荷生土地坑窑结构的非线性有限元分析
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摘要
为全面探讨生土地坑窑民居的结构性能,掌握以"减法法则"成型结构的整体受力变形规律,采用非线性有限元分析程序ABAQUS对生土地坑窑结构进行整体建模,并根据实际开挖成型过程进行分步分析,得到了生土地坑窑的初始应力场,探讨了各级开挖卸载下的应力、位移及塑性区的发展变化。研究成果为探讨生土地坑窑兴而不衰、屹立百年甚至数百年而不坍塌的结构奥秘及研究在役生土地坑窑结构安全性和可靠性等提供了科学依据。
In order to fully approach its structural property and master the deformation regularity of whole stressing for "subtraction law" shaping structure,authors used a nonlinear finite element analysis program ABAQUS to establish a whole model for underground cave dwelling and conducted a step-by-step analysis according to a practical digging and shaping process and obtained its initial stress field and discussed its development and change of stress,displacement and plastic ranges in each step of digging and downloading.The research result of the paper has supplied a scientific basis for exploring the structural secret in which underground cave dwellings have survived for a hundred or even several hundred years without collapse and studying the structural safety and reliability of underground cave dwellings in service.
In order to fully approach its structural property and master the deformation regularity of whole stressing for "subtraction law" shaping structure,authors used a nonlinear finite element analysis program ABAQUS to establish a whole model for underground cave dwelling and conducted a step-by-step analysis according to a practical digging and shaping process and obtained its initial stress field and discussed its development and change of stress,displacement and plastic ranges in each step of digging and downloading.The research result of the paper has supplied a scientific basis for exploring the structural secret in which underground cave dwellings have survived for a hundred or even several hundred years without collapse and studying the structural safety and reliability of underground cave dwellings in service.
引文
[1]胡晓龙.我省发现5 500年前窑洞民居[N].阳光报,2009-01-19(3).HU Xiao-long.Our Province Has Discovered CaveDwellings 5 500 Years Ago[N].Sunshining News-paper,2009-01-19(3).
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[10]洪斌,杜少文.土基回弹模量分布特征的研究[J].筑路机械与施工机械化,2006,23(10):44-46.HONG Bin,DU Shao-wen.Distribution Characteristicof Resilience Modulus of Soil Base in Asphalt Pave-ment Design[J].Road Machinery&ConstructionMechanization,2006,23(10):44-46.
[11]张青哲,杨人凤,戴经梁.黄土振动压实特性分析[J].长安大学学报:自然科学版,2010,30(5):27-30.ZHANG Qing-zhe,YANG Ren-feng,DAI Jing-liang.Analysis on Compaction Property of Loess by Vibra-ting Roller[J].Journal of Chang an University:Natu-ral Science Edition,2010,30(5):27-30.
[12]王福恒,李家春,田伟平.黄土边坡降雨入渗规律试验[J].长安大学学报:自然科学版,2009,29(4):20-24.WANG Fu-heng,LI Jia-chun,TIAN Wei-ping.Teston Rainfall Filtration in Loess Slope[J].Journal ofChang an University:Natural Science Edition,2009,29(4):20-24.
[13]沙爱民,陈开圣,马峰.黄土室内振动压实特性试验[J].长安大学学报:自然科学版,2008,28(1):1-5.SHA Ai-min,CHEN Kai-sheng,MA Feng.IndoorTest on Physical-mechanical Properties of Loess UnderVibration Compaction[J].Journal of Chang an Uni-versity:Natural Science Edition,2008,28(1):1-5.
[14]程海涛,刘保健,谢永利.重塑黄土变形特性[J].长安大学学报:自然科学版,2008,28(5):31-34.CHENG Hai-tao,LIU Bao-jian,XIE Yong-li.De-formation Characteristics of Remolded Loess[J].Journal of Chang an University:Natural Science Edi-tion,2008,28(5):31-34.
[15]陈立伟,彭建兵,范文,等.地震作用下黄土暗穴的稳定性[J].长安大学学报:自然科学版,2007,27(6):34-38.CHEN Li-wei,PENG Jian-bing,FAN Wen,et al.Stability of Loess-hidden Hole Under Earthquake[J].Journal of Chang an University:Natural Science Edi-tion,2007,27(6):34-38.
[16]高江平,李芳.黄土邓肯-张模型有限元计算参数的试验[J].长安大学学报:自然科学版,2006,26(2):10-13,21.GAO Jiang-ping,LI Fang.Experiments on Param-eters of Duncan-Chang Model for Loess[J].Journalof Chang an University:Natural Science Edition,2006,26(2):10-13,21.
[2]侯继尧,王军.中国窑洞[M].郑州:河南科技出版社,1999.HOU Ji-yao,WANG Jun.Cave Dwelling in China[M].Zhengzhou:Henan Science and TechnologyPress,1999.
[3]童丽萍,韩翠萍.黄土窑居自支撑结构体系的研究[J].四川建筑科学研究,2009,35(2):71-73.TONG Li-ping,HAN Cui-ping.Study on the Struc-tural Properties of Self-support Systems for Earth-sheltered Dwelling[J].Sichuan Building Science,2009,35(2):71-73.
[4]左满常.窑洞民居的典范——三门峡陕塬地坑院研究[J].古建园林技术,2007(4):39-41,7.ZUO Man-chang.Model of Cave Dwellings-Study onUnderground Cave Dwellings and Courtyards on ShanCounty Tableland in Sanmenxia[J].TraditionalChinese Architecture and Gardens,2007(4):39-41,7.
[5]费康,张建伟.ABAQUS在岩土工程中的应用[M].北京:中国水利水电出版社,2010.FEI Kang,ZHANG Jian-wei.Application of ABAQUSin Geotechnical Engineering[M].Beijing:China WaterPower Press,2010.
[6]任侠.黄土窑洞弹塑性有限元分析[J].兰州铁道学院学报,1993,12(4):1-7.REN Xia.Elasto-plastic Finite Element Analysis ofLoess Cave Dwellings[J].Journal of Lanzhou RailwayCollege,1993,12(4):1-7.
[7]金伟良.工程荷载组合理论与应用[M].北京:机械工业出版社,2006.JIN Wei-liang.Theory of Engineering Load Combina-tion and Its Application[M].Beijing:China MachinePress,2006.
[8]廖红建,王铁行.岩土工程数值分析[M].北京:机械工业出版社,2006.LIAO Hong-jian,WANG Tie-hang.Numerical Analy-sis in Geotechnical Engineering[M].Beijing:ChinaMachine Press,2006.
[9]郑颖人,高红.岩土材料基本力学特性与屈服准则体系[J].建筑科学与工程学报,2007,24(2):1-5.ZHENG Ying-ren,GAO Hong.Basic MechanicsCharacteristics and Yield Criterion System of Geoma-terials[J].Journal of Architecture and Civil Engineer-ing,2007,24(2):1-5.
[10]洪斌,杜少文.土基回弹模量分布特征的研究[J].筑路机械与施工机械化,2006,23(10):44-46.HONG Bin,DU Shao-wen.Distribution Characteristicof Resilience Modulus of Soil Base in Asphalt Pave-ment Design[J].Road Machinery&ConstructionMechanization,2006,23(10):44-46.
[11]张青哲,杨人凤,戴经梁.黄土振动压实特性分析[J].长安大学学报:自然科学版,2010,30(5):27-30.ZHANG Qing-zhe,YANG Ren-feng,DAI Jing-liang.Analysis on Compaction Property of Loess by Vibra-ting Roller[J].Journal of Chang an University:Natu-ral Science Edition,2010,30(5):27-30.
[12]王福恒,李家春,田伟平.黄土边坡降雨入渗规律试验[J].长安大学学报:自然科学版,2009,29(4):20-24.WANG Fu-heng,LI Jia-chun,TIAN Wei-ping.Teston Rainfall Filtration in Loess Slope[J].Journal ofChang an University:Natural Science Edition,2009,29(4):20-24.
[13]沙爱民,陈开圣,马峰.黄土室内振动压实特性试验[J].长安大学学报:自然科学版,2008,28(1):1-5.SHA Ai-min,CHEN Kai-sheng,MA Feng.IndoorTest on Physical-mechanical Properties of Loess UnderVibration Compaction[J].Journal of Chang an Uni-versity:Natural Science Edition,2008,28(1):1-5.
[14]程海涛,刘保健,谢永利.重塑黄土变形特性[J].长安大学学报:自然科学版,2008,28(5):31-34.CHENG Hai-tao,LIU Bao-jian,XIE Yong-li.De-formation Characteristics of Remolded Loess[J].Journal of Chang an University:Natural Science Edi-tion,2008,28(5):31-34.
[15]陈立伟,彭建兵,范文,等.地震作用下黄土暗穴的稳定性[J].长安大学学报:自然科学版,2007,27(6):34-38.CHEN Li-wei,PENG Jian-bing,FAN Wen,et al.Stability of Loess-hidden Hole Under Earthquake[J].Journal of Chang an University:Natural Science Edi-tion,2007,27(6):34-38.
[16]高江平,李芳.黄土邓肯-张模型有限元计算参数的试验[J].长安大学学报:自然科学版,2006,26(2):10-13,21.GAO Jiang-ping,LI Fang.Experiments on Param-eters of Duncan-Chang Model for Loess[J].Journalof Chang an University:Natural Science Edition,2006,26(2):10-13,21.
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