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振动压实过程土体参数识别方法研究

Keywords: 道路工程,振动压实,相似理论,土体参数识别,刚度,阻尼

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Abstract:

为了分析土壤特性与振动压路机在振动压实过程中的动态相互作用关系,提高压实效果,对振动压实过程中土壤刚度、阻尼、土体随振质量及土的固有频率等参数进行动态识别。用相似理论与模型试验法在确定了模型与原型之间的几何相似比并满足载荷相似条件后,根据模型试验结果推导出了原型土体参数;用方程对等法把受简谐激振力作用的振动轮等效为集中质量振动系统,以此作为振动压实过程的力学模型,根据振动微分方程的等效条件进行识别;用幅频特性曲线拟合法以振动压路机-土壤系统动力学方程为基础,用计算机进行动态仿真。分析表明土的刚度和阻尼,不仅与被压实时土的初始状态、环境温度和湿度等因素有关,而且随振动压实过程中压实度的变化而改变。

References

[1]  [J].Journal of East China Shipbuilding Institute,2000,14 (3):91 -94.
[2]  袁文忠.相似理论与静力学模型试验
[3]  [M].成都:西南交通大学出版社,1998.YUAN Wenzhong.Similitude Theory and Static Model Experiment
[4]  [M].北京:人民交通出版社,2001.LI Bing,JIAO Shengjie.Vibratory Rollers and Vibrating Compaction Technology
[5]  [M].Beijing:China Communications Press,2001.
[6]  邵忍平.机械系统动力学
[7]  [M].北京:机械工业出版社,2005.SHAO Renping.Dynamics of Mechanical System
[8]  YOO T S,SELIG E T.Ftmdamentals of Vibratory Compaction of Soil
[9]  [C]//The 9th International Conference on Soil Mechanics and Foundation Engineering.Japan:Springer New York,1977:375-380.
[10]  秦四成,程悦荪,李忠,等.振动压实下土壤基础密实程度在线监测研究
[11]  [J].农业工程学报,2001,17(5):15-18.QIN Sicheng,CHENG Yuesun,LI Zliong,et al.Observation Study Online of the Soil Compaction in Vibratory Roller
[12]  [J].Transactions of the Chinese Society of Agricultural Engineering,2001,17 (5):15-18.
[13]  周昌雄,周传鳞.振动压路机动力学模型及工作参数控制
[14]  [J].华东船舶工业学院学报,2000,14(6):28~31.ZHOU Changxiong,ZHOU Chuanlin.The Dynamic Model and Operating Parameter Control of Vibrating Roller
[15]  [J].Journal of East China Shipbuilding Institute,2000,14 (6):28-31.
[16]  杨东来.振荡轮与热沥青混合料相互作用动力学过程的研究
[17]  [J].筑路机械与施工机械化,2001,18(1):5-6.QIN Sicheng,CHEN Longzhu.Experimental Research on Dynamic Performance for Vibratory Roller
[18]  任军锋,陈浙江.振动压实系统动力学模型及其解析
[19]  [J].建筑机械,2005,25(7):70-73.REN Junfeng,CHEN Zhejiang.Dynamic Model of Vibratory Compaction and Its Analysis
[20]  [J].Construction Machinery,2005,25(7):70-73.
[21]  周昌雄,周传鳞.振动压实土体参数的辨识
[22]  [J].华东船舶工业学院学报,2000,14(3):91-94.ZHOU Changxiong,ZHOU Chuanlin.The Identification of Soil Parameter in the Process of Vibrating Compaction
[23]  秦四成,程悦荪,李忠,等.土壤振动压实下动态性能试验研究
[24]  [J].农业工程学报,2001,17(4):26-29.QING Sicheng,CHENG Yuesun,LI Zhong,et al.Dynamic Study on the Soil Compaction by Vibratory Roller
[25]  [J].Transactions of the Chinese Society of Agricultural Engineering,2001,17 (4):26-29.
[26]  张世英.关于振动压路机设计中土的参数的确定方法
[27]  [J].工程机械,1998,29(1):5-8.ZHANG Shiying.About the Determination of Soil Parameters in the Design of Vibratory Roller
[28]  [J].Construction Machinery and Equipment,1998,29 (1):5-8.
[29]  [M].Chengdu:Southwest Jiaotong University Press,1998.
[30]  杨俊杰.相似理论与结构模型试验
[31]  [M].武汉:武汉理工大学出版社,2005.YANG Junjie.Simihtude Theory and Strnetural Model Experiment
[32]  [M].Wuhan:Wuhan University of Technology Press,2005.
[33]  张仲甫,饶明太,万世宏,等.振动压实过程中的土壤-机械系统相似模型的试验研究
[34]  [J].武汉工学院学报,1986,8(3):1-11.ZHANG Zhongfu,RAO Mingtai,WAN Shihong,et al.Experiment Research of the Similitude Model of Soil-machine System during Vibration Compaction
[35]  [J].Journal of Wu Han Institute of Technology,1986,8 (3):1-11.
[36]  李冰,焦生杰.振动压路机与振动压实技术
[37]  [M].Beijing:China Machine Press,2005.
[38]  张世英,陈元基.筑路机械工程
[39]  [M].北京:机械工业出版社,1998.ZHANG Shiying,CHEN Yuanji.Road Machinery Engineering
[40]  [M].Beijing:China Machine Press,1998.
[41]  [D].西安:长安大学,2005.YANG Donglai.Study on Dynamics Process of Interaction between Oscillatory Drum and Hot Asphalt Mixtures
[42]  [D].Xi'an:Chang'an University,2005.
[43]  秦四成,陈龙珠.振动压路机动态性能试验研究
[44]  [J].Road Machinery & Construction Mechanization,2001,18 (1):5-6.

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