公路用玻璃钢夹砂管道径厚比优化
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摘要
为解决公路用玻璃钢夹砂管管壁厚度设计缺乏标准与依据的问题,通过对玻璃钢夹砂管道试样进行压缩性能试验、拉伸性能试验获得不同管壁厚度的基本力学参数;结合在役玻璃钢夹砂管道的现场静载试验,得到在车辆荷载作用下玻璃钢夹砂管的变形规律,采用ABAQUS软件建立玻璃钢夹砂管道在车辆荷载作用下的数值分析模型,以路面基层材料劈裂强度值及管道最大允许变形量为控制指标,研究不同管道内径、不同管道埋深8种工况下玻璃钢夹砂管道的径厚比的最优取值。研究结果表明:管道的最优径厚比与管道内径及管道覆土深度有关,当管道内径为1.0m,管道覆土深度分别为1、1.5、2m时,管道的最优管壁厚度范围分别为20~25、25~30、32~37mm,最优径厚比范围分别为40~50、33~40、27~31;当管道内径为1.5 m,管道覆土深度分别为1、1.5、2m时,管道的最优管壁厚度范围分别为28~33、32~37、35~40mm,最优径厚比范围分别为45~53、40~46、37~42;当管道内径为2.0m,管道覆土深度分别为1.5、2m时,管道的最优管壁厚度范围分别为35~40、40~45mm,最优径厚比范围分别为50~57、37~44。在保证道路整体结构以及管涵自身结构安全的前提下,可根据管道内径以及管道覆土深度选择最经济的管壁厚度,从而节省管道原材料成本,减小玻璃钢夹砂管涵洞工程的造价。
In order to solve the problem of lacking the standard and basis for designing the wall thickness of glass fiber reinforced plastics mortar pipe for highway,the basic mechanical parameters of different pipe thickness were obtained through the compressive property test,tensile property test of pipe.Combined with in-service static load test of glass fiber reinforced plastics mortar pipe,the stress of pavement base and the deformation of pipe under the action of vehicle load were obtained.The numerical analysis model of glass fiber reinforced plastics mortar pipe under automotive load were established by ABAQUS software,the splitting strength value of the pavement base material and the maximum permissible deformation of the pipe were used as the control index,the optimal values of the ratio of pipe under nine different working conditions,including the inner diameter of pipe and the depth of buried pipe were studied.The results show that the optimal diameter to thickness ratio of pipe is related to the inner diameter of pipe and the soil depth of pipe.When the inner diameter of pipe is 1.0 m,the soil depth of buried pipe is 1,1.5 and 2 m,the optimal wall thickness of pipe is 20 to 25,25 to 30 and 32 to 37 mm,and the optimum diameter to thickness ratio of pipe is 40 to 50,33 to 40 and 27 to 31 respectively.When the inner diameter of pipe is 1.5 m,the soil depth of buried pipe is 1,1.5 and 2 m,the optimal wall thickness of pipe is 28 to 33,32 to 37 and 35 to 40 mm,and the optimum diameter to thickness ratio of pipe is 45 to 53,40 to 46 and 37 to 42 respectively.When the inner diameter of pipe is 2.0 m,the soil depth of buried pipe is 1.5 or 2 m,the optimal wall thickness of pipe is 35 to 40 or 40 to 45 mm,and the optimum diameter to thickness ratio of pipe is 50 to 57 or 37 to 44.Under the premise of ensuring the overall structure of the load and the structural safety of the pipe itself,the most economical wall thickness can be selected according to the diameter of the pipe and the soil depth of the buried pipe,thereby saving the raw material cost of the pipe and reducing the cost of the culvert engineering of the glass fiber reinforced plastics mortar pipe.
In order to solve the problem of lacking the standard and basis for designing the wall thickness of glass fiber reinforced plastics mortar pipe for highway,the basic mechanical parameters of different pipe thickness were obtained through the compressive property test,tensile property test of pipe.Combined with in-service static load test of glass fiber reinforced plastics mortar pipe,the stress of pavement base and the deformation of pipe under the action of vehicle load were obtained.The numerical analysis model of glass fiber reinforced plastics mortar pipe under automotive load were established by ABAQUS software,the splitting strength value of the pavement base material and the maximum permissible deformation of the pipe were used as the control index,the optimal values of the ratio of pipe under nine different working conditions,including the inner diameter of pipe and the depth of buried pipe were studied.The results show that the optimal diameter to thickness ratio of pipe is related to the inner diameter of pipe and the soil depth of pipe.When the inner diameter of pipe is 1.0 m,the soil depth of buried pipe is 1,1.5 and 2 m,the optimal wall thickness of pipe is 20 to 25,25 to 30 and 32 to 37 mm,and the optimum diameter to thickness ratio of pipe is 40 to 50,33 to 40 and 27 to 31 respectively.When the inner diameter of pipe is 1.5 m,the soil depth of buried pipe is 1,1.5 and 2 m,the optimal wall thickness of pipe is 28 to 33,32 to 37 and 35 to 40 mm,and the optimum diameter to thickness ratio of pipe is 45 to 53,40 to 46 and 37 to 42 respectively.When the inner diameter of pipe is 2.0 m,the soil depth of buried pipe is 1.5 or 2 m,the optimal wall thickness of pipe is 35 to 40 or 40 to 45 mm,and the optimum diameter to thickness ratio of pipe is 50 to 57 or 37 to 44.Under the premise of ensuring the overall structure of the load and the structural safety of the pipe itself,the most economical wall thickness can be selected according to the diameter of the pipe and the soil depth of the buried pipe,thereby saving the raw material cost of the pipe and reducing the cost of the culvert engineering of the glass fiber reinforced plastics mortar pipe.
引文
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[10]郑彦军,陈兆南,魏连雨,等.玻璃钢夹砂管涵洞力学性能试验研究[J].特种结构,2016,33(6):66-70.ZHENG Yan-jun,CHEN Zhao-nan,WEI Lian-yu,et al.Experimental study on mechanical properties of glass fiber reinforced plastic mortar pipe culvert[J].Special Construction,2016,33(6):66-70.
[11]张济源,魏连雨,张国盘,等.公路埋地玻璃钢夹砂管车辆载荷下挠曲变形特性[J].玻璃钢/复合材料,2016(10):56-59.ZHANG Ji-yuan,WEI Lian-yu,ZHANG Guo-pan,et al.The deformation of FRPM pipe buried in highway under vehicle load[J].Fiber Reinforced Plastics/Composites,2016(10):56-59.
[12]RAFIEE R.Experimental and theoretical investigations on the failure of filament wound GRP pipes[J].Composites Part B:Engineering,2013,45(1):257-267.
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[14]陈兆南,魏连雨,裴亚男,等.玻璃钢夹砂管树脂砂浆强度优化试验研究[J].玻璃钢/复合材料,2017(9):78-81.CHEN Zhao-nan,WEI Lian-yu,PEI Ya-nan,et al.Experimental study on strength optimization of FRPM pipes resin mortar[J].Fiber Reinforced Plastics/Composites,2017(9):78-81.
[15]郭婷婷,顾安全.减荷措施下涵洞土压力与填土变形数值计算[J].交通运输工程学报,2010,10(5):12-16,29.GUO Ting-ting,GU An-quan.Numerical simulation of soil pressure and deformation for culvert with loadreducing measures[J].Journal of Traffic and Transportation Engineering,2010,10(5):12-16,29.
[16]宋奇叵,李琛彧.简述埋地玻璃钢夹砂管道工程结构设计[J].特种结构,2007(3):37-41.SONG Ji-po,LI Chen-yu.Brief description of underground FRP sand pipe engineering structure design[J].Special Structures,2007(3):37-41.
[17]汪准,邓京兰,王继辉,等.玻璃钢夹砂管道的环刚度有限元分析及应用[J].玻璃钢/复合材料,2014(11):16-20.WANG Zhun,DENG Jing-lan,WANG Ji-hui,et al.Ring stiffness finite element analysis and application of GRP pipes[J].Fiber Reinforced Plastics/Composites,2014(11):16-20.
[18]魏连雨,陈兆南,郑彦军,等.公路路基FRPM管涵洞受力变形特性研究[J].中外公路,2018(1):34-37.WEI Lian-yu,CHEN Zhao-nan,ZHENG Yan-jun,et al.Study on stress and deformation characteristics of highway subgrade FRPM pipe culverts[J].Journal of China and Foreign Highway,2018(1):34-37.
[19]魏连雨,张国盘,张济源,等.FRPM管涵力学特性试验与数值模拟研究[J].玻璃钢/复合材料,2016(8):73-77.WEI Lian-yu,ZHANG Guo-pan,ZHANG Ji-yuan,et al.Research of force mechanic characteristics tests and numerical simulation of FRPM pipe[J].Fiber Reinforced Plastics/Composites,2016(8):73-77.
[20]陈开圣,沙爱民.压实黄土变形特性[J].岩土力学,2010,31(4):1023-1029.CHEN KAI-sheng,SHA Ai-min.Study of deformation characteristics of compacted loess[J].Rock and Soil Mechanics,2010,31(4):1023-1029.
[21]陈开圣,沙爱民.压实黄土回弹模量试验研究[J].岩土力学,2010,31(3):748-752,759.CHEN Kai-sheng,SHA Ai-min.Research on resilient modulus test of compacted loess[J].Rock and Soil Mechanics,2010,31(3):748-752,759.
[22]司海宝,蔡正银.基于ABAQUS建立土体本构模型库的研究[J].岩土力学,2011,32(2):599-603.SI Hai-bao,CAI Zheng-yin.Development of static constitutive model library for soils based on ABAQUS[J].Rock and Soil Mechanics,2011,32(2):599-603.
[23]段佳利.埋地玻璃钢夹砂管道力学性能的数值模拟[D].重庆:重庆大学,2013.DUAN Jia-li.Numerical simulation on the mechanical properties of buried GRP pipe[D].Chongqing:Chongqing University,2013.
[24]贾哲.基于有限元分析的玻璃钢夹砂管道的强度分析和数值模拟辅助设计[D].南昌:南昌大学,2016.JIA Zhe.Strength analysis and numerical simulation for glass fiber reinforced plastics mortar[D].Nanchang:Nanchang University,2016.
[25]丁少梅,赵忠虎,王宁宁,等.岩石强度理论的分类评述[J].水利与建筑工程学报,2017,15(1):95-102.DING Shao-mei,ZHAO Zhong-hu,WANG Ningning,et al.Distortion energy criterion for mixed mode crack propagation[J].Journal of Water Resources and Architectural Engineering,2017,15(1):95-102.
[2]吉训刚.山区公路涵洞病害成因分析与防治[J].交通科技,2017(4):115-118.JI Xun-gang.Damage causes and control measures of culvert in mountainous highway[J].Transportation Science&Technology,2017(4):115-118.
[3]薛忠民.中国玻璃钢/复合材料发展回顾与展望[J].玻璃钢/复合材料,2015(1):5-12.XUE Zhong-min.Retrospect and prospect of development of FRP/CM in China[J].Fiber Reinforced Plastics/Composites,2015(1):5-12.
[4]徐华东,王磊,刘真国.半刚性基层沥青路面开裂成因及处治措施[J].中外公路,2008(5):84-86.XU Hua-dong,WANG Lei,LIU Zhen-guo.Causes and treatment of cracking in semi-rigid base asphalt pavement[J].Journal of China and Foreign Highway,2008(5):84-86.
[5]谭学政.水泥稳定碎石多指标质量控制方法研究[D].西安:长安大学,2013.TAN Xue-zheng.Study on the multiple indicator quality control method of the cement stabilized macadam base[D].Xian:Changan University,2013.
[6]石华旺,魏连雨,陈兆南,等.玻璃纤维增强塑料夹砂管涵疲劳性能试验研究[J].玻璃钢/复合材料,2017(3):21-24.SHI Hua-wang,WEI Lian-yu,CHEN Zhao-nan,et al.Experimental study of fatigue performance for FRPM pipe buried in highway[J].Fiber Reinforced Plastics/Composites,2017(3):21-24.
[7]LEE J H,CHOI J S,OK D M,et al.Pipe stiffness of buried glass fiber reinforced polymer plastic(GFRP)and polymer mortar pipe with symmetrical cross-section[J].Key Engineering Materials,2017,730:496-501.
[8]YANG Fan,SUN Yu-zhou,CHEN Bo.Performance assessment on the plastic mortar culvert reinforced by glass fiber[J].Applied Mechanics and Materials,2013,256:565-569.
[9]张济源,郑彦军,石华旺,等.荷载作用下埋地玻璃钢夹砂管受力特征分析[J].玻璃钢/复合材料,2016(5):80-84,22.ZHANG Ji-yuan,ZHENG Yan-jun,SHI Hua-wang,et al.Analysis of the stress characteristics of the buried glass fiber reinforced FRP pipe under load[J].Fiber Reinforced Plastics/Composites,2016(5):80-84,22.
[10]郑彦军,陈兆南,魏连雨,等.玻璃钢夹砂管涵洞力学性能试验研究[J].特种结构,2016,33(6):66-70.ZHENG Yan-jun,CHEN Zhao-nan,WEI Lian-yu,et al.Experimental study on mechanical properties of glass fiber reinforced plastic mortar pipe culvert[J].Special Construction,2016,33(6):66-70.
[11]张济源,魏连雨,张国盘,等.公路埋地玻璃钢夹砂管车辆载荷下挠曲变形特性[J].玻璃钢/复合材料,2016(10):56-59.ZHANG Ji-yuan,WEI Lian-yu,ZHANG Guo-pan,et al.The deformation of FRPM pipe buried in highway under vehicle load[J].Fiber Reinforced Plastics/Composites,2016(10):56-59.
[12]RAFIEE R.Experimental and theoretical investigations on the failure of filament wound GRP pipes[J].Composites Part B:Engineering,2013,45(1):257-267.
[13]陈涛.基于有限元分析的玻璃钢夹砂管道的强度分析与优化设计[D].南昌:南昌大学,2015.CHEN Tao.Finite analysis and optimization design of glass fiber reinforced plastics mortar pipes[D].Nanchang:Nanchang University,2015.
[14]陈兆南,魏连雨,裴亚男,等.玻璃钢夹砂管树脂砂浆强度优化试验研究[J].玻璃钢/复合材料,2017(9):78-81.CHEN Zhao-nan,WEI Lian-yu,PEI Ya-nan,et al.Experimental study on strength optimization of FRPM pipes resin mortar[J].Fiber Reinforced Plastics/Composites,2017(9):78-81.
[15]郭婷婷,顾安全.减荷措施下涵洞土压力与填土变形数值计算[J].交通运输工程学报,2010,10(5):12-16,29.GUO Ting-ting,GU An-quan.Numerical simulation of soil pressure and deformation for culvert with loadreducing measures[J].Journal of Traffic and Transportation Engineering,2010,10(5):12-16,29.
[16]宋奇叵,李琛彧.简述埋地玻璃钢夹砂管道工程结构设计[J].特种结构,2007(3):37-41.SONG Ji-po,LI Chen-yu.Brief description of underground FRP sand pipe engineering structure design[J].Special Structures,2007(3):37-41.
[17]汪准,邓京兰,王继辉,等.玻璃钢夹砂管道的环刚度有限元分析及应用[J].玻璃钢/复合材料,2014(11):16-20.WANG Zhun,DENG Jing-lan,WANG Ji-hui,et al.Ring stiffness finite element analysis and application of GRP pipes[J].Fiber Reinforced Plastics/Composites,2014(11):16-20.
[18]魏连雨,陈兆南,郑彦军,等.公路路基FRPM管涵洞受力变形特性研究[J].中外公路,2018(1):34-37.WEI Lian-yu,CHEN Zhao-nan,ZHENG Yan-jun,et al.Study on stress and deformation characteristics of highway subgrade FRPM pipe culverts[J].Journal of China and Foreign Highway,2018(1):34-37.
[19]魏连雨,张国盘,张济源,等.FRPM管涵力学特性试验与数值模拟研究[J].玻璃钢/复合材料,2016(8):73-77.WEI Lian-yu,ZHANG Guo-pan,ZHANG Ji-yuan,et al.Research of force mechanic characteristics tests and numerical simulation of FRPM pipe[J].Fiber Reinforced Plastics/Composites,2016(8):73-77.
[20]陈开圣,沙爱民.压实黄土变形特性[J].岩土力学,2010,31(4):1023-1029.CHEN KAI-sheng,SHA Ai-min.Study of deformation characteristics of compacted loess[J].Rock and Soil Mechanics,2010,31(4):1023-1029.
[21]陈开圣,沙爱民.压实黄土回弹模量试验研究[J].岩土力学,2010,31(3):748-752,759.CHEN Kai-sheng,SHA Ai-min.Research on resilient modulus test of compacted loess[J].Rock and Soil Mechanics,2010,31(3):748-752,759.
[22]司海宝,蔡正银.基于ABAQUS建立土体本构模型库的研究[J].岩土力学,2011,32(2):599-603.SI Hai-bao,CAI Zheng-yin.Development of static constitutive model library for soils based on ABAQUS[J].Rock and Soil Mechanics,2011,32(2):599-603.
[23]段佳利.埋地玻璃钢夹砂管道力学性能的数值模拟[D].重庆:重庆大学,2013.DUAN Jia-li.Numerical simulation on the mechanical properties of buried GRP pipe[D].Chongqing:Chongqing University,2013.
[24]贾哲.基于有限元分析的玻璃钢夹砂管道的强度分析和数值模拟辅助设计[D].南昌:南昌大学,2016.JIA Zhe.Strength analysis and numerical simulation for glass fiber reinforced plastics mortar[D].Nanchang:Nanchang University,2016.
[25]丁少梅,赵忠虎,王宁宁,等.岩石强度理论的分类评述[J].水利与建筑工程学报,2017,15(1):95-102.DING Shao-mei,ZHAO Zhong-hu,WANG Ningning,et al.Distortion energy criterion for mixed mode crack propagation[J].Journal of Water Resources and Architectural Engineering,2017,15(1):95-102.