路面施工发展针对实际问题提出高效治理措施

'http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/路面施工发展针对实际问题提出高效治理措施在软土地基上修建的路基如果压实控制不好、分层过厚等原因很容易沉陷。软土含天然含水量大、天然孔隙比大、抗剪强度低、承载能力低，造成软土路基的抗剪强度不足以承受路堤及路面外荷载，在振动荷载或自重力作用下，强度下降，表现出很强的流性，地基可能会产生局部或整体的剪切破坏，导致软土层侧向滑动挤出，造成路堤沉陷、塌方、失稳或构造物出现裂缝。在排水不畅的路段，水很容易浸入路基，在土体自重、行车荷载及水温变化等因素作用下，路基会发生过大的不均匀沉降，引起路面开裂破坏，水渗入裂缝后常导致路面“翻浆”，影响道路正常使用。Subgradeconstructiononsoftsoilfoundationisnotgood,ifthecompactioncontrollayertoothick,easysubsidence.Softsoilwithnaturalwater,naturalvoidratio,lowshearstrength,lowbearingcapacity,resultinginshearstrengthisnotstrongenoughtobeartheloadofembankmentandpavementofthesoftsubgrade,thevibrationloadorundertheactionofgravity,strengthdecreased,showingflowsexisverystrong,thefoundationmaygeneratelocalorthewholeshearfailure,resultinginsoftsoillateralsliding http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/extrusion,resultinginsettlementofembankment,collapse,instabilityorstructurecracks.Inthepoordrainageoftheroad,watereasilyimmersedinsubgrade,soilweight,trafficloadandtemperaturechangesandotherfactors,foundationhasexcessiveunevensettlement,crackinginthepavementstructuredamage,pavement"boiling"oftenleadtowaterseepsintocracks,affectingthenormaluseofroad.深填、高填和半填半挖填方，往往在通车一段时间后，由于大型超载车的碾压出现路基变形现象，出现这种状况主要有两方面原因：第一，施工时压实控制不好、分层过厚、施工措施不当等原因，使路基的密实度不够而容易变形。第二，材料因素，如最大干容量及最佳含水量有误、材料压缩系数过大、采用高塑性指数的粘性土等。Deepfill,highfillandcutandfillembankment,oftenintheopenafteraperiodoftime,duetothelargeoverloadvehiclerollingtheemergenceofthephenomenonofsubgradedeformation,thissituationtherearetwomainreasons:first,theconstructionofcompactioncontrolisnotgood,toothick,layeredconstructionmeasuresare http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/improper,compactnessofthesubgradenoteasilydeformed.Second,materialfactors,suchasthemaximumdrydensityandoptimummoisturecontentisincorrect,thematerialcompressioncoefficientistoolarge,theclayofhighplasticityindexetc..边坡滑塌是一种常见的路基病害，根据土质不同和规模不同可分为塌方和滑坡。塌方是由于土质疏松边坡向下滑动造成的，主要是由水损坏和施工不当引起的。滑坡是一部分边坡土体在重力作用下沿某一滑动面下滑，主要原因是不良地质条件的破坏。一般情况下，塌方和滑坡很容易发生在土质疏松、雨水较多的地区，因为雨水的巨大冲击力致使土体陷落和下滑，造成公路路基和路面破损。Slopecollapseisacommondisease,accordingtothedifferentsoilanddifferentscalecanbedividedintocollapseandlandslide.Collapseisduetoloosesoilslopeslidingdownthecause,ismainlycausedbythewaterdamageandimproperconstruction.Landslideisapartofthesoilundertheactionofgravityalongaslidingdown,themainreasonisthefailureofadversegeologicalconditions.Ingeneral,collapseandlandslideoccurseasilyinloosesoil,themorerainarea, http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/becauseofthegreatimpactofraincausedsoilcollapseandslide,causingdamageofhighwaysubgradeandpavement.基层平整度控制不严，甚至出现波浪式起伏；路面施工控制不力，摊铺机及压路机的操作人员水平较低；基准线或滑靴失控；沥青混合材料配合不合理等因素都会造成路面不平整。Baseflatnesscontrolisnotstrict,andeventheemergenceofundulatingmovement;pavementconstructioncontrolineffective,paverandrolleroperatorlevelislow;thebaselineorslipperisoutofcontrol;unreasonablefactorswithasphaltmixturewillcauseunevenpavement.如果施工不当，在公路工程完工早期容易出现路面破损情况。由于各种原因山东防腐油漆在沥青混合料摊铺碾压中，没有严把施工的质量关，没有严格控制终压的沥青混合料的温度，都会造成了横向裂缝的产生。由于片面追求个别不合理的指标，没有全面考虑面层的综合强度、安全性和耐久性，会造成路面的不必要的破坏。由于没有综合考虑到当地的自然环境因素，也会造成了一些意外的问题产生，给路面造成很大破坏。Ifimproperconstruction,completedinthe http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/highwayengineeringearlypronepavementdamage.Duetovariousreasonsinasphaltmixturepaving,nostrictconstructionquality,thereisnostrictcontroloffinalpressureonthetemperatureofasphaltmixture,willcausethetransversecrack.Duetotheone-sidedpursuitofindividualunreasonableindex,thereisnooverallconsideration,comprehensivestrengthofthesurfacelayerofthesafetyanddurabilityofpavement,willcauseunnecessarydamage.Becauseofthelackofcomprehensiveconsiderationtothelocalnaturalenvironment,alsocausedsomeunexpectedproblems,causedgreatdamagetothepavement.路基的施工质量，很大程度上是整个公路工程的关键，必须要经受得住时间、车辆超载、雨季和寒冷冬季的考验，所以在进行路基工作时要严把质量关。Theconstructionqualityofroadbed,largelyisthekeyofthehighwayengineering,mustwithstandthetime,overloadingofvehicles,rainyandcoldwintertest,sothesubgradeworktostrictqualitycontrol. http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/由于岩溶地区从自然环境上不同于其它地区，所以，对于此地区路基的冶理首先要从地质条件上弄清岩溶的发展规律和分布规律，要考虑到地下暗河的分布，对于这里的水应以疏导为主，采取因地制宜的办法，设置排水沟。对于顶板强度不够的岩溶洞，可炸掉顶板进行混凝土回填，或者进行加固处理，对于有填充物的溶洞，应优先采用注浆法进行加固。对于路基范围内的土洞应先判明土洞是否仍在发展，对于已停止发展的土洞可按一般方法进行处理，对于还在发展的土洞，应采用造物跨越。Becausekarstregionfromthenaturalenvironmentisdifferentfromotherregions,so,intheareaofsubgradetreatmentofthefirstfromthelawofdevelopmentanddistributionofkarstgeologicalconditionsonit,totakeintoaccountthedistributionofundergroundriver,thewaterheretogrooming,takenbylocalway,settingthedrainage.Therockcaveroofstrengthisnotenough,canblowtheroofconcretebackfill,orreinforcement,forpaddedcavern,priorityshouldbegiventothegroutingreinforcement.Forsoilcaveinsidethesubgradeshouldfirstascertainsoilcaveisstillindevelopment,thesoilcave http://www.taishankuangji.com/http://www.sdsbjj.com/http://www.tahdhq.com/http://www.taiankyq.com/hasstoppeddevelopmentcanbeprocessedaccordingtothegeneralmethod,thesoilcaveindevelopment,shouldadoptthecreationacross.关于路面冶理，我们也要注意三个方面的问题。首先，对于路面的不平整现象，尽力采取简洁措施。其次，对于路面出现的裂缝问题，当灵芝孢子油裂缝较细数量不多时，可将裂缝用水冲洗完后用水泥浆抹补。而裂缝较大时，应沿裂缝凿去薄弱部分，再进行施工。其三，要注意在路面治理过程中的细节问题，以免治理不当，再次出现路面破坏现象。Onroadadministration,wemustpayattentiontothreeaspects.Firstofall,theroadtotheunevenphenomenon,trytotakesimplemeasures.Secondly,forthecrackproblemofroadsurface,whenthecrackissmallquantityisnotmuch,butwillcrackwaterflushingafterusingthecementslurrytowipeup.Whilethecrackislarger,shouldgototheweakpartalongthecrackchisel,thenfortheconstruction.Thirdly,weshouldpayattentiontodetailsinpavementmanagementprocess,inordertoavoidimpropergovernance,againpavementfailure.'