有砟铁路翻浆冒泥技术论文

中华人民共和国教育部东北林业大学毕业论文论文题目：铁路路基翻浆冒泥的机理及治理措施学生：刘志指导教师：杨林副教授学院：成人教育学院专业年级：2012级（哈铁）土木工程2013年1月-I-铁路路基翻浆冒泥的机理及整治措施摘要路基是铁路轨道的基础，它承受铁路轨道的重量及机车车辆的动力荷载，同时还不断遭受到水流、风沙、雨雪、严寒、高温等的侵袭和各种不良地质条件及人为因素的影响。翻浆冒泥是基床土受地面水或地下水的浸湿软化或液化后形成的泥浆，在列车动荷载作用下形成沿道床道碴的空隙向表面涌出的一种路基病害现象，已成为影响铁路安全和运营的顽疾，每年需花费巨资整治路基翻浆冒泥，严重影响了线路的正常运营和铁路的大提速。文章在探求路基翻浆冒泥的机理的基础上，对现有病害探测和维修检测的方法进行了分析，并对现有路基基床翻浆冒泥整治技术进行了对比研究。对比分析表明：路基翻浆冒泥是多个影响因素共同作用的结果，但同时不同路基翻浆冒泥产生的原因也有差别，因此，已有许多学者对铁路路基翻浆冒泥产生的原因、处置措施的机理和效果进行了对应的分析，并通过采取一系列的工程措施，达到提高岩土的力学强度和变形模量，提高路基承载力，控制不均匀沉降，减少翻浆冒泥的目的。关键词：铁路路基；翻浆冒泥；机理；整治措施-II-RailwayroadbedatthemechanismandtheabundantmudcontrolmeasuresAbstractEmbankmentisthefoundationofrailwaytrack,whichbeartheweightoftherailwaytrackandlocomotivevehicledynamicload,butalsoconstantlysubjectedtowater,windandsand,snow,cold,hightemperatureandotherattacksandallkindsofbadgeologicalconditionandtheinfluenceoftheartificialfactor.Pumpingtakemudisbedsoilbysurfacewaterorgroundwatersoakedsofteningorliquefiedformafterthemudinthetrainmovingloadsformedalongtheballastbedballastgaptothesurfacefromaroadbeddiseasephenomenon,hasbecomeapersistentailmentoftherailwaysafetyandoperationeffect,everyyearneedtospendahugeimprovementsubgradefrostheavetakemud,seriouslyaffectedthenormaloperationoftherailwaylineandthespeed.Basedonthesearchsubgradefrostheavetakemudmechanismonthebasisoftheexistingdiseasedetectionandmaintenancedetectionmethodsareanalyzed,andtheexistingsubgradebedmudpumpingriskcontroltechnologymakesacomparativestudy.Comparativeanalysisshowsthatthesubgradefrostheavetakemudismoreinfluencingfactorstheresultofjointaction,butatthesametimedifferentsubgradefrostheavetakemudcausesalsohavedifference,therefore,therearemanyscholarsforrailwaysubgradefrostheavetakemudcausesandtreatmentmeasuresofthemechanismandtheeffectofthecorrespondinganalysis,andbytakingaseriesofengineeringmeasures,improvegeotechnicalmechanicsstrengthanddeformationmodulusofsubgradebearingcapacity,andimprovethecontrolofunevensettlement,reducepumpingatthepurposeofmud.Keywords:Railwaysubgrad;Abundanttakemud;Mechanism;Controlmeasures-III-目录摘要.....................................................................................................................................IAbstract....................................................................................................................................II引言....................................................................................................................................11．绪论......................................................................................................................................31.1翻浆冒泥的定义......................................................................................................31.2我国铁路现状..........................................................................................................31.3翻浆冒泥的概述......................................................................................................41.4翻浆冒泥研究的方向与方法..................................................................................42．翻浆冒泥的影响因素、种类特征及形成原因..................................................................52.1影响路基翻浆的主要因素.....................................................................................52.1.1土质.................................................................................................................52.1.2温度..................................................................................................................52.1.3水......................................................................................................................52.1.4行车荷载.........................................................................................................52.2翻浆冒泥的种类及特征..........................................................................................52.2.1道床翻浆冒泥..................................................................................................52.2.2土质路面翻浆冒泥..........................................................................................62.2.3风化石质基面翻浆冒泥..................................................................................62.3翻浆冒泥形成原因.................................................................................................62.3.1道床厚度不足..................................................................................................62.3.2道床污染板结及道碴槽..................................................................................72.3.3路基土质不良..................................................................................................72.3.4排水不良及地下水上升影响..........................................................................73．路基翻浆冒泥的机理..........................................................................................................83.1路基翻浆冒泥的机理分析.....................................................................................83.1.1翻浆冒泥病害的影响因素............................................................................83.1.2翻浆冒泥病害分类.............................