模袋水泥土的界面力学性能研究
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摘要
模袋水泥土是一种由模型袋内填充水泥土而成的新型绿色环保砌筑材料。模袋水泥土充分结合了袋装砂(土)和水泥土两种材料的优点,造价低、污染小、施工简单快捷等优点使其在挡土结构、地基处理等方面有着非常广泛的应用前景。虽然模袋水泥土结构已经在土工工程领域有了一定的应用,但是对于该材料的工程性质研究还十分匮乏和落后,尤其是对模袋水泥土的界面力学性能方面的研究。众所周知,砌块之间的界面力学性能对整个堆砌结构的稳定性起决定性作用。因此模袋水泥土界面的力学性能研究具有非常重大的工程意义。
本文主要从两方面对模袋水泥土的界面力学性能进行了研究。一、基于分形几何学理论,运用均方根坡度角法(ARMSS)估算了模袋水泥土的截面轮廓线的分形指标(β、A、D)和粗糙度系数JRC,最后结合Barton提出的10条标准轮廓线和JRC-JCS模型进行了界面抗剪强度的分形估算;二、运用ANSYS有限元软件对模袋水泥土进行了数值模拟分析,重点研究了影响接触界面力学性能的各种相关因素。文中所采用的方法为模袋水泥土的界面力学性能研究开辟了一条新的思路和途径。
分形几何学的方法研究和分析表明,ARMSS法可以准确和方便地计算出实际接触界面的各项分形指标和粗糙度系数,并结合其他参数快速地推算出界面抗剪强度,从而为确定模袋水泥土界面的抗剪强度提供了一种快捷可靠的估算方法。数值模拟分析重点研究了界面摩擦系数f、法向荷载作用、水平荷载作用三个因素对模袋水泥土的水平方向最大位移、界面最大接触滑移量、界面最大接触摩擦应力和界面最大接触总应力四个力学性能指标的影响。为今后实际工程的施工和设计提供了理论依据。
The sacked cemented-soil is formed by the geotechnical material bag and cemented-soil, which is a new green building material. It combines the advantages of Bags of sand (soil) and cement-soil, this kind of structure is characterized by low-cost, low pollution and easy construction, so it has a very broad application prospects in earth retaining structures and foundation treatment. Although the sacked cemented-soil has been used in some area, but the engineering properties of the material is very scarce and backward, especially for interface mechanical properties. As we all know, the interface mechanical properties determines of the stability of the whole structure. Therefore, the study is very meaningful.
In this paper, two methods were used to study the mechanical properties of sacked cement-soil interface. On the one hand, based on fractal geometry theory, the ARMSS is used to estimate the interface fractal parameters (β, A, D) and JRC, and the JRC-JCS model was used to estimate the interfacial shear strength. On the other hand, ANSYS was used to study the mechanical properties of the contact interface factors. These methods of sacked cemented-soil mechanical properties of the interface have opened up a new way of thinking and ways.
The results show that, Using ARMSS method we can accurately and easily calculate the interface fractal parameters, and roughness coefficient. Interfacial shear strength can be solved quickly. Numerical simulation results show that the relationship between the friction coefficient f、normal loading、horizontal load and the maximum cement bag horizontal displacement、the maximum slip、the maximum friction stress and the maximum total stress. All of the above work has played a guiding role of the actual project.
本文主要从两方面对模袋水泥土的界面力学性能进行了研究。一、基于分形几何学理论,运用均方根坡度角法(ARMSS)估算了模袋水泥土的截面轮廓线的分形指标(β、A、D)和粗糙度系数JRC,最后结合Barton提出的10条标准轮廓线和JRC-JCS模型进行了界面抗剪强度的分形估算;二、运用ANSYS有限元软件对模袋水泥土进行了数值模拟分析,重点研究了影响接触界面力学性能的各种相关因素。文中所采用的方法为模袋水泥土的界面力学性能研究开辟了一条新的思路和途径。
分形几何学的方法研究和分析表明,ARMSS法可以准确和方便地计算出实际接触界面的各项分形指标和粗糙度系数,并结合其他参数快速地推算出界面抗剪强度,从而为确定模袋水泥土界面的抗剪强度提供了一种快捷可靠的估算方法。数值模拟分析重点研究了界面摩擦系数f、法向荷载作用、水平荷载作用三个因素对模袋水泥土的水平方向最大位移、界面最大接触滑移量、界面最大接触摩擦应力和界面最大接触总应力四个力学性能指标的影响。为今后实际工程的施工和设计提供了理论依据。
The sacked cemented-soil is formed by the geotechnical material bag and cemented-soil, which is a new green building material. It combines the advantages of Bags of sand (soil) and cement-soil, this kind of structure is characterized by low-cost, low pollution and easy construction, so it has a very broad application prospects in earth retaining structures and foundation treatment. Although the sacked cemented-soil has been used in some area, but the engineering properties of the material is very scarce and backward, especially for interface mechanical properties. As we all know, the interface mechanical properties determines of the stability of the whole structure. Therefore, the study is very meaningful.
In this paper, two methods were used to study the mechanical properties of sacked cement-soil interface. On the one hand, based on fractal geometry theory, the ARMSS is used to estimate the interface fractal parameters (β, A, D) and JRC, and the JRC-JCS model was used to estimate the interfacial shear strength. On the other hand, ANSYS was used to study the mechanical properties of the contact interface factors. These methods of sacked cemented-soil mechanical properties of the interface have opened up a new way of thinking and ways.
The results show that, Using ARMSS method we can accurately and easily calculate the interface fractal parameters, and roughness coefficient. Interfacial shear strength can be solved quickly. Numerical simulation results show that the relationship between the friction coefficient f、normal loading、horizontal load and the maximum cement bag horizontal displacement、the maximum slip、the maximum friction stress and the maximum total stress. All of the above work has played a guiding role of the actual project.
引文
[1]肖林王春义郭汉生.建筑材料水泥土[M].北京:水利水电出版社.1987
[2]松岗元(日)著;罗汀,姚仰平译.土力学[M].北京:中国水利水电出版社.2001
[3]张林洪.结构面抗剪强度的一种确定方法[J].岩石力学与工程学报.2001.20(1):114~117
[4]Barton NR.Review of a New Shear Strength Criterion for Rock Joints[J].Engineering Geology,1973,7:297-332
[5]Lanaro F.A random field model for surface roughness and aperture of rock fractures [J].Int J Rock Mech Min Sci & Geomech Abstr.2000.37:1195-1210.
[6]Grasselli G & Egger P.3D surface characterization for the pred iction of shear strength of rough joint[A].Eurock 2000[C],2000:281-286.
[7]Xie H,Pariseau W G.Fractal Estimation of Joint Roughness Coefficient[C].In:Proc of Int Conf on Fractured and Jointed Rock Masses.Bereley,1992:72-86
[8]谢和平,PariseauW.G.岩石节理粗糙系数的分形估计[J].中国科学,1994,24(5):524-530
[9]谢和平.岩石节理分形描述[J].岩土工程学报,1995,1(1):18-23
[10]谢和平等.岩石变形破坏过程的能量机耗散分析[J].岩土力学与工程学报,2004,23(21):3565-3570
[11]谢和平等.岩石变形破坏过程的能量机制[J].岩土力学与工程学报,2008,27(9):1729-1741
[12]童志怡等.基于黏着抹茶理论的结构面的抗剪强度选取方法[J].岩土工程学报,2008,30(9):1367-1372
[13]王鹏等.基于随机-模糊理论的岩石抗剪强度参数的选取[J].岩石力学与工程学报,2005,24(4):547-553
[14]Perrier H.U se of soil2filled synthetic pillows for erosion protection.Proc of 3rd Inter Conf onGeotextiles[M].Vienna,Austria,1986:1115-1119
[15]Fowler Jack.Geotextile tubes and flood contro.Geotechnical Fabrics Report[R],1997,15(5):28-37
[16]邱长林等.大尺度土工织物充填袋受力特性[J].工程力学,2009,1:92-97
[17]冯韶山,顾金芝,高小玲.编织土工充泥管袋抗酸碱性能研讨[J].产业用纺织品,2000,8:28-30
[18]王文杰等.土工充泥袋抛坝促淤试验研究与实践[J].水利学报,2003,2:88-93
[19]潘洋.防洪堤坝的土工编织袋力学分析[D].上海交通大学,2007
[20]张俊平.土工织物充填袋在黄骅神华港一期工程中的应用[J].中国港湾建设2002.4(2):46-48
[21]马燕.大型充泥袋结构在黄骅港一期工程引堤工程中的应用[J].港工技术.1999.4:21-23
[22]邵介贤等.土工编织袋在路基工程中应用的研究[J].公路.2005,7:82-85。
[23]马石城,张勋武等.袋装水泥土材料的力学性能试验研究[J],湘潭大学自然科学学报,2007,29(3)97-104
[24]李晓全.袋装水泥土及其砌筑物力学性能试验研究[D],湘潭大学硕士学位论文,2007
[25]戴文峰等.袋装水泥土(块)挡土墙的变形试验研究及理论分析[J],建筑砌块与砌块建筑,2007,5:31-33
[26]王瑞,马石城等.编织袋袋装水泥红土的力学性能试验研究[J],建筑科学,2008,24(3)
[27]葛世荣,朱华著.摩擦学的分形[M].北京:机械工业出版社.2005
[28]D.F.摩尔著,黄文治等译.摩擦学原理和应用[M].北京:机械工业出版社.1982
[29]Russ J.C.Fractal Surfaces.Plenum Press,New York,1994
[30]N.Fardin,O.Stephansson,Lanru Jing.The scale dependence of rock joint surface roughness[J].Int J Rock Mech Min Sci,2001,38:659-669
[31]H.E.Hurst.Long-term storage capacity of reservoirs.Transa-ctions of the American Society of Civil Engineers,pages770808,1951.
[32]Mandelbrot B.B.Self-atfine fractals and fractal dimension.Phys Scripta,1985,32:257-260
[33]Odling N.E.Natural fracture profiles,fractal dimension and joint roughness coefficients[J].Rock Mech Rock Eng,1994,27:135-153
[34]施行觉;许和明;牛志仁;范增节;岩石断面的自仿射分形及其分维的计算[J].中国地震,1992,03
[35]王国强主编.实用工程数值模拟技术及其在ANSYS上的实践[M].西安:西北工业大学出版社,1999.8
[36]龚曙光,谢桂兰编著.ANSYS操作命令与参数化编程[M].北京:机械工业出版社,2004.04
[37]KeerLM,Lee J C,Mura T.A contact problem forthe elas-tic quarter space[J].Int J Solids and Structures,1984,20(5):513524.
[38]Martin-Moran C J,Barber J R.The penny-shaped interfaccrack with heat flow[J].JAppl Mech,1983,50:2936.
[39]LionsJ,DuvautG.力学和物理学中的变分不等式[M].北京:科学出版社,1987.
[40]蔡中义等.大变形中摩擦接触问题的数值模拟及应用[J].应用力学学报.2009,12(2):1-5
[41]李录贤等.摩擦接触问题的数学规划解法[J].应用力学学报.1998,15(2):49-57
[42]李建宇等.摩擦接触问题参变量二次规划分析的增广Lagrange算法[J].天津科技大学学报.2009,24(6):54-59
[43]陈万吉等.三维摩擦接触问题的一种混合不动点算法[J].大连理工大学学报.2001,41(1):29-24
[44]李学文等.三维摩擦接触问题的一种混合迭代法[J].北京理工大学学报.2005,25(2):98-102
[45]赵兰浩等.有初始间隙摩擦接触问题的有限元混合法[J].岩土工程学报.2006,28(11):2016-2019
[46]赵杰等.ANSYS在求解带摩擦接触问题中的应用[J].北京石油化工学院学报.2003,11(4):45-48
[47]陈一鸣.弹性及弹塑性摩擦边界元快速算法的理论与方法研究[D].燕山大学.2002
[48]博弈创作室.ANSYS9.0经典产品基础教程与实例详解[M].北京:中国水利水电出版社,2006[49]ANSYS.ANSYSContactTechnologyGuide
[2]松岗元(日)著;罗汀,姚仰平译.土力学[M].北京:中国水利水电出版社.2001
[3]张林洪.结构面抗剪强度的一种确定方法[J].岩石力学与工程学报.2001.20(1):114~117
[4]Barton NR.Review of a New Shear Strength Criterion for Rock Joints[J].Engineering Geology,1973,7:297-332
[5]Lanaro F.A random field model for surface roughness and aperture of rock fractures [J].Int J Rock Mech Min Sci & Geomech Abstr.2000.37:1195-1210.
[6]Grasselli G & Egger P.3D surface characterization for the pred iction of shear strength of rough joint[A].Eurock 2000[C],2000:281-286.
[7]Xie H,Pariseau W G.Fractal Estimation of Joint Roughness Coefficient[C].In:Proc of Int Conf on Fractured and Jointed Rock Masses.Bereley,1992:72-86
[8]谢和平,PariseauW.G.岩石节理粗糙系数的分形估计[J].中国科学,1994,24(5):524-530
[9]谢和平.岩石节理分形描述[J].岩土工程学报,1995,1(1):18-23
[10]谢和平等.岩石变形破坏过程的能量机耗散分析[J].岩土力学与工程学报,2004,23(21):3565-3570
[11]谢和平等.岩石变形破坏过程的能量机制[J].岩土力学与工程学报,2008,27(9):1729-1741
[12]童志怡等.基于黏着抹茶理论的结构面的抗剪强度选取方法[J].岩土工程学报,2008,30(9):1367-1372
[13]王鹏等.基于随机-模糊理论的岩石抗剪强度参数的选取[J].岩石力学与工程学报,2005,24(4):547-553
[14]Perrier H.U se of soil2filled synthetic pillows for erosion protection.Proc of 3rd Inter Conf onGeotextiles[M].Vienna,Austria,1986:1115-1119
[15]Fowler Jack.Geotextile tubes and flood contro.Geotechnical Fabrics Report[R],1997,15(5):28-37
[16]邱长林等.大尺度土工织物充填袋受力特性[J].工程力学,2009,1:92-97
[17]冯韶山,顾金芝,高小玲.编织土工充泥管袋抗酸碱性能研讨[J].产业用纺织品,2000,8:28-30
[18]王文杰等.土工充泥袋抛坝促淤试验研究与实践[J].水利学报,2003,2:88-93
[19]潘洋.防洪堤坝的土工编织袋力学分析[D].上海交通大学,2007
[20]张俊平.土工织物充填袋在黄骅神华港一期工程中的应用[J].中国港湾建设2002.4(2):46-48
[21]马燕.大型充泥袋结构在黄骅港一期工程引堤工程中的应用[J].港工技术.1999.4:21-23
[22]邵介贤等.土工编织袋在路基工程中应用的研究[J].公路.2005,7:82-85。
[23]马石城,张勋武等.袋装水泥土材料的力学性能试验研究[J],湘潭大学自然科学学报,2007,29(3)97-104
[24]李晓全.袋装水泥土及其砌筑物力学性能试验研究[D],湘潭大学硕士学位论文,2007
[25]戴文峰等.袋装水泥土(块)挡土墙的变形试验研究及理论分析[J],建筑砌块与砌块建筑,2007,5:31-33
[26]王瑞,马石城等.编织袋袋装水泥红土的力学性能试验研究[J],建筑科学,2008,24(3)
[27]葛世荣,朱华著.摩擦学的分形[M].北京:机械工业出版社.2005
[28]D.F.摩尔著,黄文治等译.摩擦学原理和应用[M].北京:机械工业出版社.1982
[29]Russ J.C.Fractal Surfaces.Plenum Press,New York,1994
[30]N.Fardin,O.Stephansson,Lanru Jing.The scale dependence of rock joint surface roughness[J].Int J Rock Mech Min Sci,2001,38:659-669
[31]H.E.Hurst.Long-term storage capacity of reservoirs.Transa-ctions of the American Society of Civil Engineers,pages770808,1951.
[32]Mandelbrot B.B.Self-atfine fractals and fractal dimension.Phys Scripta,1985,32:257-260
[33]Odling N.E.Natural fracture profiles,fractal dimension and joint roughness coefficients[J].Rock Mech Rock Eng,1994,27:135-153
[34]施行觉;许和明;牛志仁;范增节;岩石断面的自仿射分形及其分维的计算[J].中国地震,1992,03
[35]王国强主编.实用工程数值模拟技术及其在ANSYS上的实践[M].西安:西北工业大学出版社,1999.8
[36]龚曙光,谢桂兰编著.ANSYS操作命令与参数化编程[M].北京:机械工业出版社,2004.04
[37]KeerLM,Lee J C,Mura T.A contact problem forthe elas-tic quarter space[J].Int J Solids and Structures,1984,20(5):513524.
[38]Martin-Moran C J,Barber J R.The penny-shaped interfaccrack with heat flow[J].JAppl Mech,1983,50:2936.
[39]LionsJ,DuvautG.力学和物理学中的变分不等式[M].北京:科学出版社,1987.
[40]蔡中义等.大变形中摩擦接触问题的数值模拟及应用[J].应用力学学报.2009,12(2):1-5
[41]李录贤等.摩擦接触问题的数学规划解法[J].应用力学学报.1998,15(2):49-57
[42]李建宇等.摩擦接触问题参变量二次规划分析的增广Lagrange算法[J].天津科技大学学报.2009,24(6):54-59
[43]陈万吉等.三维摩擦接触问题的一种混合不动点算法[J].大连理工大学学报.2001,41(1):29-24
[44]李学文等.三维摩擦接触问题的一种混合迭代法[J].北京理工大学学报.2005,25(2):98-102
[45]赵兰浩等.有初始间隙摩擦接触问题的有限元混合法[J].岩土工程学报.2006,28(11):2016-2019
[46]赵杰等.ANSYS在求解带摩擦接触问题中的应用[J].北京石油化工学院学报.2003,11(4):45-48
[47]陈一鸣.弹性及弹塑性摩擦边界元快速算法的理论与方法研究[D].燕山大学.2002
[48]博弈创作室.ANSYS9.0经典产品基础教程与实例详解[M].北京:中国水利水电出版社,2006[49]ANSYS.ANSYSContactTechnologyGuide