Goodafternoon,professors:Itismygreathonortointroducemyselfhere.Mynameisliuxiaobing.Icomefrommaoyishengclass,thecollegeofcivilengineering.Andmymajoristrackengineering.Duringmythree-yearstudyintheuniversity,Ihavebuiltupasolidfoundationofprofessionalknowledge,aswellasarichexperienceofsocialactivities.Iattainedapracticeinaninternetcompanyonsummervacationoffreshmanyear.Thispracticenotonlybroughtthefirstbucketofgoldtome,butalsoletmelearnhowtocooperatewithawiderangeofpeople.WhenIwasasophomore,ItookpartinthenationalundergraduateinnovationprogramasagroupleaderandImadeimpressiveprogress.Thereisnodoubtthatjoiningthisprogramissorewardingtome.Ilearnedthataconsiderateplancouldmakeeverythinglessworkanditisofmuchsignificancetodowhatyoulikeandtheninsistit.what’smore,Ialsoacquiredlotsofprofessionalknowledgeandknewhowtothinkindependently.Iamanambitiousperson,alwayswillingtoachievehighergoals.Iamveryinterestedinmymajorcourse,andI’dliketostudyitmoresystematically.ThisiswhyIhopetojointhisclass.IfIhavethechancetobeamemberoftheteam,I’lltrytoimprovemyabilityoninnovationandlearnmoreskillsaboutprofessionalsoftwares.I’lltrymybesttobeanexpertinrailtransit.Thankyou.ThecontentofourprogramisteststudyonDXpilesperformanceinfrozensoilsunderlateralloads.WedidaseriesofexperimentsaboutDXpilesandfinallyprovedDXpilesperformanceisbetterthanstraightpiles.