易发生翻浆冒泥的细粒土物理状态指标分析与评判
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摘要
翻浆冒泥是既有铁路路基最常见的一种路基病害。通过国内外文献调研,收集30组翻浆冒泥工程实例资料和61个已发生翻浆冒泥土的实测数据样本,分析和总结发生翻浆冒泥的细粒土物理状态表征指标(塑性指数IP、液限WL、饱和度Sr、细颗粒含量P、渗透系数K)和指标区间,对物理状态表征指标进行相关性分析,筛选出3个无相关性指标(IP、Sr、P)作为易翻浆冒泥的细粒土评价指标。基于层次分析法,提出易翻浆冒泥的细粒土综合评判指标F,各评价指标权重由病害表征指标出现的频次经计算得到。研究结果表明,易发生翻浆冒泥的细粒土物理状态为:塑性指数IP大于12,液限WL大于32%,渗透系数K小于1.05×10-5 cm/s,饱和度Sr大于50%,细颗粒含量P(粉粒与黏粒所占土的百分含量)大于60%。通过实例验证,与目前评价指标相比,综合评判指标F能更好地评判土体易发生翻浆冒泥的可能性。
Mud pumping is one of the most common subgrade problems in existing railways.Based on related domestic and foreign research literature,30 groups of mud pumping instances and measured data of 61 soil samples with mud pumping were collected to analyze the physical state indicators of fine-grained soils prone to mud pumping,including plasticity index IP,liquid limit WL,saturation Sr,fine particle content P(silt and clay by quality content of the soil)and the permeability coefficient K and their values.The relations between these indicators were analyzed and three non-correlation indicators(plasticity index IP,saturation Sr,fine particle content P)were chosen as the evaluation indexes for fine grained soils prone to mud pumping.Based on the analytic hierarchy process,the comprehensive evaluation index of fine-grained soils prone to mud pumping(F)was put forward.The weight of each evaluation index was determined through the calculation of the frequency of occurrence of defect indicators.The results show the physical state of fine-grained soils prone to mud pumping as follows:plasticity index IPgreater than 12,liquid limit WLgreater than 32%,permeability coefficient Kless than 1.05×10-5 cm/s,saturation Srgreater than 50%,and fine particle content P greater than60%.Examples show that the comprehensive evaluation index(F)can better judge the possibility of mud pumping than traditional evaluation indexes.
Mud pumping is one of the most common subgrade problems in existing railways.Based on related domestic and foreign research literature,30 groups of mud pumping instances and measured data of 61 soil samples with mud pumping were collected to analyze the physical state indicators of fine-grained soils prone to mud pumping,including plasticity index IP,liquid limit WL,saturation Sr,fine particle content P(silt and clay by quality content of the soil)and the permeability coefficient K and their values.The relations between these indicators were analyzed and three non-correlation indicators(plasticity index IP,saturation Sr,fine particle content P)were chosen as the evaluation indexes for fine grained soils prone to mud pumping.Based on the analytic hierarchy process,the comprehensive evaluation index of fine-grained soils prone to mud pumping(F)was put forward.The weight of each evaluation index was determined through the calculation of the frequency of occurrence of defect indicators.The results show the physical state of fine-grained soils prone to mud pumping as follows:plasticity index IPgreater than 12,liquid limit WLgreater than 32%,permeability coefficient Kless than 1.05×10-5 cm/s,saturation Srgreater than 50%,and fine particle content P greater than60%.Examples show that the comprehensive evaluation index(F)can better judge the possibility of mud pumping than traditional evaluation indexes.
引文
[1]孙明漳,王乃松,刘慧茹.关于土工聚合材料对铁路路基动强度影响的探讨[J].铁道学报,1992,14(4):126-133.SUN Mingzhang,WANG Naisong,LIU Huiru.Discussion on the Influence of the Material on the Dynamic Strength of the Railway Subgrade[J].Journal of the China Railway Society,1992,14(4):126-133.
[2]李杰生,钱春宇,廖红建.多道瞬态面波法在铁路路基测试中的应用[J].岩土力学,2003,24(S2):611-615.LI Jiesheng,QIAN Chunyu,LIAO Hongjian.MSASW Method Appling in Inspecting Railroad Subgrade[J].Rock and Soil Mechanics,2003,24(S2):611-615.
[3]陈文海.铁路路基翻浆冒泥病害机理及整治[J].企业技术开发,2010,29(7):42-46.CHEN Wenhai.The Mechanism of Mud Pumping in Railway Subgrade and Its Treatment Measures[J].Technological Development of Enterprise,2010,29(7):42-46.
[4]杨新安,高艳灵.沪宁铁路翻浆冒泥病害的地质雷达检测[J].岩石力学与工程学报,2004,23(1):116-119.YANG Xin’an,GAO Yanling.Gpr Inspection for Shanghai-Nanjing Raiway Trackbed[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):116-119.
[5]白颢,孔令伟.固结比对石灰土动力特性的影响试验研究[J].岩土力学,2009,30(6):1590-1594.BAI Hao,KONG Lingwei.Experimental Research on Influence of Consolidation Ratio on Dynamic Characteristics of Lime-treated Soil[J].Rock and Soil Mechanics,2009,30(6):1590-1594.
[6]杜攀峰,廖立坚,杨新安.铁路路基病害的智能识别[J].铁道学报,2010,32(3):142-146.DU Panfeng,LIAO Lijian,YANG Xinan.Intelligent Recognition of Defects in Railway Subgrade[J].Journal of the China Railway Society,2010,32(3):142-146.
[7]李玉锋,韩会增.有机高分子改性土动力特性试验研究[J].岩土力学,2000,21(2):156-158,162.LI Yufeng,HAN Huizeng.Experimental Study on Dynamic Properties of Soil Modified by Super Polymer[J].Rock and Soil Mechanics,2000,21(2):156-158,162.
[8]AW E S.Low Cost Monitoring System to Diagnose Problematic Rail Bed:Case Study of Mud Pumping Site[D].Cambridge:Massachusetts Institute of Technology,2007.
[9]杨新安,周青.铁路路基病害与动力触探试验研究[J].中国矿业大学学报,2002,31(4):31-35.YANG Xin’an,ZHOU Qing.Railway Roadbed Diseases and Dynamic Penetration Test Research[J].Journal of China University of Mining and Technology,2002,31(4):31-35.
[10]葛如生.阳安线基床病害整治[D].成都:西南交通大学,2003.
[11]霍凯成,张全林,罗国荣.用土工合成材料治理道路翻浆的研究[J].岩土力学,2003,24(1):45-48.HUO Kaicheng,ZHANG Quanlin,LUO Guorong.Study on Preventing Mud Boil at Roads by Using Geosynthetics[J].Rock and Soil Mechanics,2003,24(1):45-48.
[12]VOOTTIPRUEX P,ROONGTHANEE J.Prevention of Mud Pumping in Railway Embankment a Case Study fromBaeng Pra-pitsanuloke,Thailand[J].The Journal of KMITB,2003,13(1):20-25.
[13]ALOBAIDI I,HOARE D J.Mechanisms of Pumping at the Subgrade-subbase Interface of Highway Pavements[J].Geosynthetics International,1999,6(4):241-259.
[14]BOOMINTAHAN S,SRINIVASAN G R.Laboratory Studies on Mud Pumping into Ballast under Repetitive Rail Loading[J].Indian Geotechnical Journal,1988,18(1):31-47.
[15]RAYMOND G P.Geotextile Application for a Branch Line Upgrading[J].Geotextiles and Geomembranes,1986,3(2):91-104.
[16]AYRES D J.Geotextiles or Geomembranes in Track British Railways’Experience[J].Geotextiles and Geomembranes,1986,3(2):129-142.
[17]谷宪明.季冻区道路冻胀翻浆机理及防治研究[D].长春:吉林大学,2007.
[18]MURAMOTO K,SEKINE E,NAKAMURA T,et al.Roadbed Degradation Mechanism under Ballastless Track and Its Countermeasures[J].Quarterly Report of Rtri,2006,47(4):222-227.
[19]ALOBAIDI I,HOARE D J.The Development of Pore Water Pressure at the Subgrade-subbase Interface of a Highway Pavement and Its Effect on Pumping of Fines[J].Geotextiles and Geomembranes,1996,14(2):111-135.
[20]ALOBAIDI I,HOARE D J.Mechanisms of Pumping at the Subgrade-subbase Interface of Highway Pavements[J].Geosynthetics International,1999,6(4):241-259.
[21]ALOBAIDI I,HOARE D J.Qualitative Criteria for Antipumping Geocomposites[J].Geotextiles and Geomembranes,1998,16(4):221-245.
[22]钟涛,梁维新.成都东站峰前场基床翻浆冒泥原因的试验分析[J].路基工程,1995(5):39-41.ZHONG Tao,LIANG Weixin.Mud Pumping Analysis of Roadbed in front of Chengdu East Railway Station[J].Subgrade Engineering,1995(5):39-41.
[23]山田干雄,小野一良,孙明漳.关于产生翻浆冒泥机理的初步研究[J].路基工程,1988(3):70-75.KIYOTAKA Yamada,YOSHINORI Ono,SUN Mingzhang.Preliminary Study on the Mechanism of Mud Pumping[J].Subgrade Engineering,1988(3):70-75.
[24]杨荣兴.浙赣线红门工点翻浆冒泥的整治[J].路基工程,1996(6):53-56.YANG Rongxing.Remediation of the Mud Pumping Red Gate Worksite[J].Subgrade Engineering,1996(6):53-56.
[25]杨若芳,杨灿文.防治翻浆冒泥新技术[M].北京:中国铁道出版社,1989.
[26]易波.电阻率层析成像技术在阳安铁路翻浆冒泥探测中的应用[J].路基工程,2013(6):150-155.YI Bo.Application of the Resistivity Tomographic Imaging Technology in the Detection of the Mud Pumping Yang an Railway[J].Subgrade Engineering,2013(6):150-155.
[27]赵满庆.裂隙土基床病害整治研究[D].成都:西南交通大学,2002.
[28]傅鹤林,刘宝琛.路基基床翻浆冒泥病害整治的固化材料的室内试验研究[C]//中国土木工程学会第九届土力学及岩土工程学术会议论文集(下册).北京:中国土木工程学会,2003.
[29]苗雷强,岳祖润,冯怀平.既有线重载铁路路基翻浆冒泥成因及防治措施[J].安徽建筑,2014,11(1):113,121.MIAO Leiqiang,YUE Zurun,FENG Huaiping.Causes of the Mud Pumping in Existing Heavy Loaded Railway and Prevention Measures[J].Anhui Construction,2014,11(1):113,121.
[30]乔连军.京通线K245~K462路基翻浆冒泥的整治[J].铁道建筑,2006(10):75-76.QIAO Lianjun.Treatment of Subgrade Mud Pumping in Beijing Tong Line from K245to K462[J].Railway Engineering,2006(10):75-76.
[31]段铭钰.铁路路基翻浆冒泥的原因及整治措施[J].铁道技术监督,2010,38(6):23-25.DUAN Mingyu.The Cause of the Railway Mud Pumping and Treatment Measures[J].Railway Quality Control,2010,38(6):23-25.
[32]李文华,李显刚.浅析基床翻浆冒泥和边坡坍滑的形成与治理[J].路基工程,2002(3):70-71.LI Wenhua,LI Xiangang.The Analysis of Subgrade Mud Pumping and the Formation of the Slope Collapse Sliding and Governance[J].Subgrade Engineering,2002(3):70-71
[33]刘瀚强.浅析铁道道床翻浆冒泥病害及其防治[J].煤炭技术,2013,32(6):179-181.LIU Hanqiang.Analysis of Hazards and Control of Railway Track Bed Mud Pumping[J].Coal Technology,2013,32(6):179-181.
[34]崔新壮.交通荷载作用下黄河三角洲低液限粉土地基累积沉降规律研究[J].土木工程学报,2012,45(1):154-162.CUI Xinzhuang.Traffic-induced Settlement of Subgrade of Low Liquid Limit Silt in Yellow River Delta[J].China Civil Engineering Journal,2012,45(1):154-162.
[35]陈仲颐,周景星,王洪瑾.土力学[M].北京:清华大学出版社,2006.
[36]SAATY T L.The Analytic Hierarchy Process:Planning,Priority Setting,Resource Allocation[M].New York:McGraw-Hill,1980.
[37]邓帅.重载铁路路基病害调查及其信息管理系统的研究[D].长沙:中南大学,2011.
[38]冷伍明.重载铁路桥梁和路基检测与强化技术研究[R].长沙:中南大学,2011.
[2]李杰生,钱春宇,廖红建.多道瞬态面波法在铁路路基测试中的应用[J].岩土力学,2003,24(S2):611-615.LI Jiesheng,QIAN Chunyu,LIAO Hongjian.MSASW Method Appling in Inspecting Railroad Subgrade[J].Rock and Soil Mechanics,2003,24(S2):611-615.
[3]陈文海.铁路路基翻浆冒泥病害机理及整治[J].企业技术开发,2010,29(7):42-46.CHEN Wenhai.The Mechanism of Mud Pumping in Railway Subgrade and Its Treatment Measures[J].Technological Development of Enterprise,2010,29(7):42-46.
[4]杨新安,高艳灵.沪宁铁路翻浆冒泥病害的地质雷达检测[J].岩石力学与工程学报,2004,23(1):116-119.YANG Xin’an,GAO Yanling.Gpr Inspection for Shanghai-Nanjing Raiway Trackbed[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):116-119.
[5]白颢,孔令伟.固结比对石灰土动力特性的影响试验研究[J].岩土力学,2009,30(6):1590-1594.BAI Hao,KONG Lingwei.Experimental Research on Influence of Consolidation Ratio on Dynamic Characteristics of Lime-treated Soil[J].Rock and Soil Mechanics,2009,30(6):1590-1594.
[6]杜攀峰,廖立坚,杨新安.铁路路基病害的智能识别[J].铁道学报,2010,32(3):142-146.DU Panfeng,LIAO Lijian,YANG Xinan.Intelligent Recognition of Defects in Railway Subgrade[J].Journal of the China Railway Society,2010,32(3):142-146.
[7]李玉锋,韩会增.有机高分子改性土动力特性试验研究[J].岩土力学,2000,21(2):156-158,162.LI Yufeng,HAN Huizeng.Experimental Study on Dynamic Properties of Soil Modified by Super Polymer[J].Rock and Soil Mechanics,2000,21(2):156-158,162.
[8]AW E S.Low Cost Monitoring System to Diagnose Problematic Rail Bed:Case Study of Mud Pumping Site[D].Cambridge:Massachusetts Institute of Technology,2007.
[9]杨新安,周青.铁路路基病害与动力触探试验研究[J].中国矿业大学学报,2002,31(4):31-35.YANG Xin’an,ZHOU Qing.Railway Roadbed Diseases and Dynamic Penetration Test Research[J].Journal of China University of Mining and Technology,2002,31(4):31-35.
[10]葛如生.阳安线基床病害整治[D].成都:西南交通大学,2003.
[11]霍凯成,张全林,罗国荣.用土工合成材料治理道路翻浆的研究[J].岩土力学,2003,24(1):45-48.HUO Kaicheng,ZHANG Quanlin,LUO Guorong.Study on Preventing Mud Boil at Roads by Using Geosynthetics[J].Rock and Soil Mechanics,2003,24(1):45-48.
[12]VOOTTIPRUEX P,ROONGTHANEE J.Prevention of Mud Pumping in Railway Embankment a Case Study fromBaeng Pra-pitsanuloke,Thailand[J].The Journal of KMITB,2003,13(1):20-25.
[13]ALOBAIDI I,HOARE D J.Mechanisms of Pumping at the Subgrade-subbase Interface of Highway Pavements[J].Geosynthetics International,1999,6(4):241-259.
[14]BOOMINTAHAN S,SRINIVASAN G R.Laboratory Studies on Mud Pumping into Ballast under Repetitive Rail Loading[J].Indian Geotechnical Journal,1988,18(1):31-47.
[15]RAYMOND G P.Geotextile Application for a Branch Line Upgrading[J].Geotextiles and Geomembranes,1986,3(2):91-104.
[16]AYRES D J.Geotextiles or Geomembranes in Track British Railways’Experience[J].Geotextiles and Geomembranes,1986,3(2):129-142.
[17]谷宪明.季冻区道路冻胀翻浆机理及防治研究[D].长春:吉林大学,2007.
[18]MURAMOTO K,SEKINE E,NAKAMURA T,et al.Roadbed Degradation Mechanism under Ballastless Track and Its Countermeasures[J].Quarterly Report of Rtri,2006,47(4):222-227.
[19]ALOBAIDI I,HOARE D J.The Development of Pore Water Pressure at the Subgrade-subbase Interface of a Highway Pavement and Its Effect on Pumping of Fines[J].Geotextiles and Geomembranes,1996,14(2):111-135.
[20]ALOBAIDI I,HOARE D J.Mechanisms of Pumping at the Subgrade-subbase Interface of Highway Pavements[J].Geosynthetics International,1999,6(4):241-259.
[21]ALOBAIDI I,HOARE D J.Qualitative Criteria for Antipumping Geocomposites[J].Geotextiles and Geomembranes,1998,16(4):221-245.
[22]钟涛,梁维新.成都东站峰前场基床翻浆冒泥原因的试验分析[J].路基工程,1995(5):39-41.ZHONG Tao,LIANG Weixin.Mud Pumping Analysis of Roadbed in front of Chengdu East Railway Station[J].Subgrade Engineering,1995(5):39-41.
[23]山田干雄,小野一良,孙明漳.关于产生翻浆冒泥机理的初步研究[J].路基工程,1988(3):70-75.KIYOTAKA Yamada,YOSHINORI Ono,SUN Mingzhang.Preliminary Study on the Mechanism of Mud Pumping[J].Subgrade Engineering,1988(3):70-75.
[24]杨荣兴.浙赣线红门工点翻浆冒泥的整治[J].路基工程,1996(6):53-56.YANG Rongxing.Remediation of the Mud Pumping Red Gate Worksite[J].Subgrade Engineering,1996(6):53-56.
[25]杨若芳,杨灿文.防治翻浆冒泥新技术[M].北京:中国铁道出版社,1989.
[26]易波.电阻率层析成像技术在阳安铁路翻浆冒泥探测中的应用[J].路基工程,2013(6):150-155.YI Bo.Application of the Resistivity Tomographic Imaging Technology in the Detection of the Mud Pumping Yang an Railway[J].Subgrade Engineering,2013(6):150-155.
[27]赵满庆.裂隙土基床病害整治研究[D].成都:西南交通大学,2002.
[28]傅鹤林,刘宝琛.路基基床翻浆冒泥病害整治的固化材料的室内试验研究[C]//中国土木工程学会第九届土力学及岩土工程学术会议论文集(下册).北京:中国土木工程学会,2003.
[29]苗雷强,岳祖润,冯怀平.既有线重载铁路路基翻浆冒泥成因及防治措施[J].安徽建筑,2014,11(1):113,121.MIAO Leiqiang,YUE Zurun,FENG Huaiping.Causes of the Mud Pumping in Existing Heavy Loaded Railway and Prevention Measures[J].Anhui Construction,2014,11(1):113,121.
[30]乔连军.京通线K245~K462路基翻浆冒泥的整治[J].铁道建筑,2006(10):75-76.QIAO Lianjun.Treatment of Subgrade Mud Pumping in Beijing Tong Line from K245to K462[J].Railway Engineering,2006(10):75-76.
[31]段铭钰.铁路路基翻浆冒泥的原因及整治措施[J].铁道技术监督,2010,38(6):23-25.DUAN Mingyu.The Cause of the Railway Mud Pumping and Treatment Measures[J].Railway Quality Control,2010,38(6):23-25.
[32]李文华,李显刚.浅析基床翻浆冒泥和边坡坍滑的形成与治理[J].路基工程,2002(3):70-71.LI Wenhua,LI Xiangang.The Analysis of Subgrade Mud Pumping and the Formation of the Slope Collapse Sliding and Governance[J].Subgrade Engineering,2002(3):70-71
[33]刘瀚强.浅析铁道道床翻浆冒泥病害及其防治[J].煤炭技术,2013,32(6):179-181.LIU Hanqiang.Analysis of Hazards and Control of Railway Track Bed Mud Pumping[J].Coal Technology,2013,32(6):179-181.
[34]崔新壮.交通荷载作用下黄河三角洲低液限粉土地基累积沉降规律研究[J].土木工程学报,2012,45(1):154-162.CUI Xinzhuang.Traffic-induced Settlement of Subgrade of Low Liquid Limit Silt in Yellow River Delta[J].China Civil Engineering Journal,2012,45(1):154-162.
[35]陈仲颐,周景星,王洪瑾.土力学[M].北京:清华大学出版社,2006.
[36]SAATY T L.The Analytic Hierarchy Process:Planning,Priority Setting,Resource Allocation[M].New York:McGraw-Hill,1980.
[37]邓帅.重载铁路路基病害调查及其信息管理系统的研究[D].长沙:中南大学,2011.
[38]冷伍明.重载铁路桥梁和路基检测与强化技术研究[R].长沙:中南大学,2011.