膨胀土湿热耦合性状与路堑边坡防护机理研究.docx

膨胀土湿热耦合性状与路堑边坡防护机理研究
摘要
本文通过对膨胀土湿热耦合性状及路堑边坡防护机理的研究，深入探讨了膨胀土在湿热环境下的行为以及路堑边坡的防护措施，为工程实践提供了一定的参考。
首先，本文介绍了膨胀土湿热耦合性状的基本概念及影响因素。其次，通过对膨胀土湿热循环试验的分析，探讨了膨胀土在湿热环境下的变形特性及其机理。最后，本文着重讨论了路堑边坡的防护措施，并结合实际工程案例，探究了不同防护措施的优劣与适用范围。
研究表明，膨胀土在湿热环境下容易出现吸湿膨胀、干燥收缩等行为，并会导致土体强度的明显下降。因此，在路堑边坡的设计和施工过程中，应重视膨胀土的湿热效应，采取相应的防护措施，如加强排水、采用防渗材料等，以保证路堑边坡的稳定性和安全性。
关键词：膨胀土；湿热循环试验；路堑边坡；防护措施
Abstract
Throughthestudyofthecoupledcharacteristicsofexpansivesoilunderwetandhotconditionsandtheprotectionmechanismofroadcutslopes,thispaperexploresthebehaviorofexpansivesoilunderwetandhotconditionsandtheprotectivemeasuresofroadcutslopes,providingacertainreferenceforengineeringpractice.
Firstly,thispaperintroducesthebasicconceptandinfluencingfactorsofthecoupledcharacteristicsofexpansivesoilunderwetandhotconditions.Secondly,throughtheanalysisofthewetandhotcycletestofexpansivesoil,thedeformationcharacteristicsandmechanismofexpansivesoilunderwetandhotconditionsarediscussed.Finally,focusingontheprotectionmeasuresofroadcutslopes,andcombinedwithactualengineeringcases,thispaperdiscussestheadvantagesanddisadvantagesandapplicablerangeofdifferentprotectivemeasures.
Theresearchshowsthatexpansivesoilsarepronetobehaviorssuchasmoistureabsorptionandexpansion,dryingandshrinking,etc.underwetandhotconditions,causingasignificantdecreaseinsoilstrength.Therefore,inthedesignandconstructionprocessofroadcutslopes,attentionshouldbepaidtothewetandhoteffectsofexpansivesoils,andcorrespondingprotectivemeasuresshouldbetaken,suchasstrengtheningdrainage,usinganti-seepagematerials,etc.,toensurethestabilityandsafetyofroadcutslopes.
Keywords:expansivesoil;wetandhotcycletest;roadcutslope;protectionmeasures