河砂在路基填筑中的應(yīng)用研究.pdf

1、山東大學(xué)碩士學(xué)位論文河砂在路基填筑中的應(yīng)用研究姓名：張利杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：潘維宗20121120山東大學(xué)碩士學(xué)位論文ABSTRACTDifferentgeologicalconditionswillbeencounteredintheprocessofhighwayconstruction，thecostandtimeaboutroadbedconstructiondependonthefillingma

2、terialforaproject，inconsiderationoflargecost，itisimpossibletotransportmaterialsfromthefarfieldforfilling，althoughitmayusethesimpleconstructionprocess，thepriceistooexpensive，SObasicallyallsubgradefillingistoobtainrawmater

3、iallocally，althoughthecostcanbegreatlyreduced，theprocessisrelativelycomplextomakefulluseoflocalsandmaterialsThekindofriversandisaweakengineeringpropertiesforsubgradefillingmaterials，underthecircumstancesthatconstructiont

4、echnologyisnotreasonable，itisusuallydifficulttomeettherequirementsoffillingsubgradeononehand，insufficienthandmayleadthatthesubgradebearingcapacityisinsufficient，causingtheentiresurfacestructuredamage；ontheotherhand，Itwil

5、lincreasethelikelihoodofingressroadbedfromtherainorotherfreewaterthewaterstabilityisnotgoodAccordingtotheexperimentalresultsandtheactualobservationontheconstructionsite，therearemainlytwofactorstoeffectsandcompaction，thef

6、irstisthehornandshapeoftheparticles；thesecondisthefillercompositiongradeSincethesandangularisrelativelysmooth，itleadsthattheinteractionbetweenparticlesisweak，SOthattheinnerfrictionalresistanceislowInadditiontonaturalgrad

7、ationisnotideal，itwillcausedthatthecompactioneffectisnotgood，theallofmechanicalperformanceisbadSincetherearedifferentpropertiesofthesandindifferentsandfield，thefillerpropertiesarenotthesame，itisnoteasytocontrolconstructi

8、onqualityintheprocessofconstruction，theresultwillmakegreateffectonthedetectingdatamoldingsandroadbedshouldkeepcertainregularwatercontent，otherworse，becauseofdryweather，itwillcausetheroadbedloose，vehicledrivingwheelstuck，

9、causingdifficultyinconstructionIntheconstructionoflargeareasandindicatorstestmustbebasedonthedifferenceofsand，inthedailyfeeding，specificguidancetoensurethequalityoffillingsandMachineryequipmentinthecombinationmustbereaso