冲击振动压路机模型对黄土压实试验的研究
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摘要
黄土在我国华北、西北地区分布广泛,是这些地区公路路基填筑的主要材料。然而黄土是一种特殊土,孔隙发育,具有湿陷性,遇水会使土基沉陷,从而使路面产生破坏,若对其进行特殊处理又会大大增加工程开支。研究黄土的压实特性,采用正确的压实方法及压实工艺是提高黄土路基承载能力和抗变形能力经济而有效的措施。
本文从黄土物理力学性质入手,对黄土颗粒组成及液塑限进行了研究,通过重型击实试验得到了黄土击实曲线,确定了黄土最佳含水量及最大干密度。利用冲击振动复合压路机模型对黄土进行了实验室压实试验。研究了黄土在冲击+静碾、冲击+振动+静碾、振动+静碾三种工况下的压实特性,对比分析了三种工况下压实度变化规律,并对黄土冲击振动压实机理进行了分析。试验过程中利用压力传感器采集黄土中的动态压力信号,对其进行处理与分析,揭示了冲击振动作用在黄土中的传播规律。这些研究为解决黄土压实这一难题提供了理论基础。
最后对冲击振动复合压实设备的激振机构进行了参数化设计,为今后该设备的产品化、系列化提供了一条方便快捷的途径。
The loess is widely distributed in North and Northwest China, which is the main material of highway subgrade filling in these areas. However, loess is a special soil with the features of porosity development and collapsibility, which will let soil sink with water so that the road will be damaged. It will be greatly increased expenditure if the loess being treated specially. The research of the loess compaction characteristics and using the correct method of compaction and compaction process are main measures to improve the bearing capacity and anti-deformation ability of the loess roadbed.
Beginning with the physical property of loess, this article studies the pellet form liquid limit and limit plastic of the loess. According to the heavy compact experiment, the paper gets the compaction curve of the loess and then confirms optimum moisture content and biggest dry density of the loess. Using the model of production-impaction and vibration roller model,the paper do the compact experiment of the loess in the laboratory. The compaction characteristic of the loess is studied through three condition that are impact adds vibratory compaction、static compaction adds impact and vibratory compaction, impact adds vibratory compaction. The distributing and transferring regulation of the degree of compaction is analyzed under three condition and the compaction theory in the impaction-vibration is researched. In the experiment, some pressure sensors are used to collect the dynamic pressure signal, which is processed and analyzed to reveal the distributing and transferring regulation in theimpaction-vibration. Researches in this paper provide the basic theory to solve the difficult problem of compaction of the loess.
Finally, this paper design parameters for the impaction and vibration composite compact technology equipment which provide a convenient and efficient way for the production and series of the equipment.
本文从黄土物理力学性质入手,对黄土颗粒组成及液塑限进行了研究,通过重型击实试验得到了黄土击实曲线,确定了黄土最佳含水量及最大干密度。利用冲击振动复合压路机模型对黄土进行了实验室压实试验。研究了黄土在冲击+静碾、冲击+振动+静碾、振动+静碾三种工况下的压实特性,对比分析了三种工况下压实度变化规律,并对黄土冲击振动压实机理进行了分析。试验过程中利用压力传感器采集黄土中的动态压力信号,对其进行处理与分析,揭示了冲击振动作用在黄土中的传播规律。这些研究为解决黄土压实这一难题提供了理论基础。
最后对冲击振动复合压实设备的激振机构进行了参数化设计,为今后该设备的产品化、系列化提供了一条方便快捷的途径。
The loess is widely distributed in North and Northwest China, which is the main material of highway subgrade filling in these areas. However, loess is a special soil with the features of porosity development and collapsibility, which will let soil sink with water so that the road will be damaged. It will be greatly increased expenditure if the loess being treated specially. The research of the loess compaction characteristics and using the correct method of compaction and compaction process are main measures to improve the bearing capacity and anti-deformation ability of the loess roadbed.
Beginning with the physical property of loess, this article studies the pellet form liquid limit and limit plastic of the loess. According to the heavy compact experiment, the paper gets the compaction curve of the loess and then confirms optimum moisture content and biggest dry density of the loess. Using the model of production-impaction and vibration roller model,the paper do the compact experiment of the loess in the laboratory. The compaction characteristic of the loess is studied through three condition that are impact adds vibratory compaction、static compaction adds impact and vibratory compaction, impact adds vibratory compaction. The distributing and transferring regulation of the degree of compaction is analyzed under three condition and the compaction theory in the impaction-vibration is researched. In the experiment, some pressure sensors are used to collect the dynamic pressure signal, which is processed and analyzed to reveal the distributing and transferring regulation in theimpaction-vibration. Researches in this paper provide the basic theory to solve the difficult problem of compaction of the loess.
Finally, this paper design parameters for the impaction and vibration composite compact technology equipment which provide a convenient and efficient way for the production and series of the equipment.
引文
[1]蔡同俊.黄土路基压实特性研究[D].长安大学硕士论文,2005.6
[2]高大钊,袁聚云.土质学与土力学[M],人民交通出版社,2002.6
[3]GB/T 18148-2000,压实机械压实性能试验方法[S]
[4]何春锋.压实黄土的工程性质及应用问题[D].西北农林科技大学硕士论文,2006.6
[5]何挺继,朱文天,邓世新.筑路机械手册[M].人民交通出版社,1997.2
[6]JTG E40-2007,公路土工试验规程[S]
[7]JTGB01-2003,公路工程技术标准[S]
[8]纪林章.风积沙压实机理研究[D].长安大学硕士论文,2007.5
[9]景宏君.振动压实与黄土高路堤沉降变形[D].长安大学硕士论文,2004.3
[10]李保雄,牛永红,苗天德.兰州马兰黄土的物理力学特性[J].岩土力学,2007.6
[11]李冰,焦生杰.振动压路机与振动压实技术[M].人民交通出版社,2001.4
[12]刘建超,唐娴,李文亮.高速公路路基冲击压实技术[J].铁道建筑,2005.11
[13]刘小伟,谌文武,梁收运等.黄土压实的影响因素研究[J].中国沙漠,2004.9
[14]刘祖典.黄土力学与工程[M].陕西科学技术出版社,1997
[15]马文星,邓洪超.筑路与养护路机械-原理、结构与设计[M].化学工业出版社,2005.1
[16]秦建平.西安地区黄土湿陷系数相关性分析[J].公路交通科技,2008.9
[17]沙爱民,陈开圣,马蜂.黄土室内振动压实特性研究[J].长安大学学报,2008.1
[18]沙庆林.公路压实与压实标准[M].人民交通出版社,1998
[19]石刚,支喜兰,马建秦等.黄土的组分及微观结构特征与地基承载力[J].公路交通科技,2005.12
[20]T.S.Yoo,Selig,E.T.Fundamentals of Vibratory Compaction of Soil[C].Ninth International Conference on Soil Mechanics and Foundation Engineering,Vol.2,Japan,1977.
[21]王生新,韩文峰,谌文武等.冲击压实路基黄土的微观特征研究[J].岩土力学,2006.6
[22]王世良.YZ16单钢轮振动压路机设计[D].四川大学硕士论文,2004.3
[23]吴永平,姚怀新.工程机械设计[M].长安大学教材,2003.7
[24]吴永琢,周峰,朱仁成.看实例学编程[M].西安电子科技大学出版社,2004.11
[25]吴宗泽.机械设计实用手册[M].化学工业出版社,2003.6
[26]伍石生,戴经梁,彭波.压实黄土的微结构及其渗水的研究[J].西安公路交通大学学报,1998.10
[27]杨人凤,张永新,杨云岭.冲击振动联合作用下土的压实机理试验[J].长安大学学报,2003.5
[28]杨人凤.冲击、振动复合型压路机[P].专利号:ZL02224615.0
[29]杨人凤.冲击振动复合压实技术与设备[M].中国科学技术出版社,2003.9
[30]姚运仕.双频合成振动压实方法的试验研究[D].长安大学博士论文,2006.6
[31]Yoo.TS.(ATheoryforVibratoyrCompactionofSoils),Ph.D.Dissertation,StateUniversityofNewYorkatBufa lo,Bufalo,NewYork,1975
[32]尹继瑶,压路机设计与应用[M],机械工业出版社,2000
[33]于志伟,李明.Pro/ENGINEER野火版3.0零件设计完全手册.人民邮电出版社,2007
[34]余华,何玉香.Visual Basic程序设计[M].北京理工大学出版社,2005.2
[35]张超,郑南翔,王建设.路基路面试验检测技术[M].人民交通出版社,2004.11
[36]张合军,张军玮.几种常用偏心块偏心矩及其激振力的计算[J].矿山机械,1999.6
[37]张洪亮,王秉纲.黄土路基压实标准研究[J].公路工程,2008.10
[38]张继春.Pro/ENGINEER二次开发实用教程[M].北京大学出版社,2003.5
[39]张伟.黄土压实机理研究[D].长安大学硕士论文,2008.5
[40]周萼秋,易小刚.现代压实机械[M].人民交通出版社,2003.10
[41]周勤,赵发章,张洪亮.压实度和含水量对于压实黄土力学特性的影响[J].公路,2006.1
[2]高大钊,袁聚云.土质学与土力学[M],人民交通出版社,2002.6
[3]GB/T 18148-2000,压实机械压实性能试验方法[S]
[4]何春锋.压实黄土的工程性质及应用问题[D].西北农林科技大学硕士论文,2006.6
[5]何挺继,朱文天,邓世新.筑路机械手册[M].人民交通出版社,1997.2
[6]JTG E40-2007,公路土工试验规程[S]
[7]JTGB01-2003,公路工程技术标准[S]
[8]纪林章.风积沙压实机理研究[D].长安大学硕士论文,2007.5
[9]景宏君.振动压实与黄土高路堤沉降变形[D].长安大学硕士论文,2004.3
[10]李保雄,牛永红,苗天德.兰州马兰黄土的物理力学特性[J].岩土力学,2007.6
[11]李冰,焦生杰.振动压路机与振动压实技术[M].人民交通出版社,2001.4
[12]刘建超,唐娴,李文亮.高速公路路基冲击压实技术[J].铁道建筑,2005.11
[13]刘小伟,谌文武,梁收运等.黄土压实的影响因素研究[J].中国沙漠,2004.9
[14]刘祖典.黄土力学与工程[M].陕西科学技术出版社,1997
[15]马文星,邓洪超.筑路与养护路机械-原理、结构与设计[M].化学工业出版社,2005.1
[16]秦建平.西安地区黄土湿陷系数相关性分析[J].公路交通科技,2008.9
[17]沙爱民,陈开圣,马蜂.黄土室内振动压实特性研究[J].长安大学学报,2008.1
[18]沙庆林.公路压实与压实标准[M].人民交通出版社,1998
[19]石刚,支喜兰,马建秦等.黄土的组分及微观结构特征与地基承载力[J].公路交通科技,2005.12
[20]T.S.Yoo,Selig,E.T.Fundamentals of Vibratory Compaction of Soil[C].Ninth International Conference on Soil Mechanics and Foundation Engineering,Vol.2,Japan,1977.
[21]王生新,韩文峰,谌文武等.冲击压实路基黄土的微观特征研究[J].岩土力学,2006.6
[22]王世良.YZ16单钢轮振动压路机设计[D].四川大学硕士论文,2004.3
[23]吴永平,姚怀新.工程机械设计[M].长安大学教材,2003.7
[24]吴永琢,周峰,朱仁成.看实例学编程[M].西安电子科技大学出版社,2004.11
[25]吴宗泽.机械设计实用手册[M].化学工业出版社,2003.6
[26]伍石生,戴经梁,彭波.压实黄土的微结构及其渗水的研究[J].西安公路交通大学学报,1998.10
[27]杨人凤,张永新,杨云岭.冲击振动联合作用下土的压实机理试验[J].长安大学学报,2003.5
[28]杨人凤.冲击、振动复合型压路机[P].专利号:ZL02224615.0
[29]杨人凤.冲击振动复合压实技术与设备[M].中国科学技术出版社,2003.9
[30]姚运仕.双频合成振动压实方法的试验研究[D].长安大学博士论文,2006.6
[31]Yoo.TS.(ATheoryforVibratoyrCompactionofSoils),Ph.D.Dissertation,StateUniversityofNewYorkatBufa lo,Bufalo,NewYork,1975
[32]尹继瑶,压路机设计与应用[M],机械工业出版社,2000
[33]于志伟,李明.Pro/ENGINEER野火版3.0零件设计完全手册.人民邮电出版社,2007
[34]余华,何玉香.Visual Basic程序设计[M].北京理工大学出版社,2005.2
[35]张超,郑南翔,王建设.路基路面试验检测技术[M].人民交通出版社,2004.11
[36]张合军,张军玮.几种常用偏心块偏心矩及其激振力的计算[J].矿山机械,1999.6
[37]张洪亮,王秉纲.黄土路基压实标准研究[J].公路工程,2008.10
[38]张继春.Pro/ENGINEER二次开发实用教程[M].北京大学出版社,2003.5
[39]张伟.黄土压实机理研究[D].长安大学硕士论文,2008.5
[40]周萼秋,易小刚.现代压实机械[M].人民交通出版社,2003.10
[41]周勤,赵发章,张洪亮.压实度和含水量对于压实黄土力学特性的影响[J].公路,2006.1
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