多孔隙水泥稳定碎石排水基层设计与施工

214200512JOURNALOFCHANGSHACOMMUNICATIONSUNIVERSITYVol.21No.4Dec.2005:1000-9779(2005)04-0032-071,2,1,1(1.,200092;2.,410076):,,,,,,,:;;:U416.217:A:2004-12-23:(1975),,,.,,,,;,,,,,,,,,,,,,,[1],6070,1973[2],(AASHTO),2002[3]:1990,,,,,,,,1,,©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,,,[4]2h,4560m[5],(1),,,,2Qi=IaB+kpB(1):Ia,0.15m3/d/m2;kp,,;BDarcy:Q0=kiA(2):Q0,m3/d/m;k;i,izih,;A,,A=h,,A=hih/ivs=1neki2z+i2h(3)ne,t=Ls3600vs(4)Ls,Ls=B1+i2z/i2h(5)14.75m,0.3m,B15.05m;0.3%,2%,i2.02%(1):Qi=20.1515.05=4.515m3/d/m2000m/d,(2):h=Qikih=0.11176m=11.176cm,12cm,(5):Ls=15.051+0.00320.022=15.22m4560m,20%,(3)vs=10.220000.0032+0.022=202m/d(4)t=(15.2224)/202=1.81h,,[3]300m/d,75cm,,,2000m/d,12cm,,,,16cm16cm,,2.56h,,334,,:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,,16cm2:;,,[6],7d3.54.0MPa,,15%25%,0.35cm/s[5],,1/mm/%31.526.513.24.752.360.07510095100256001005024,325,,,,,,,4.75mm,,4122/%/mm31.526.513.24.752.360.075A100100.0100.043.62.510.5B1#2#5050100.099.542.81.00.70.4C1#2#7030100.099.442.12.21.30.7D1#2#5050100.099.644.71.41.10.7,,,,,,,7d6d,1d;[7],Darcy,Darcy,,,ASTM,0.03[8],,,18.0%,27.05%,1.3cm/s,,,,,7d,4,CD7d,,,,2.14321©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,8.51.09.01.0,1,,,,2,,,,,,,2.2,0.380.400.42,22,,,,,,,,,,,,(),,,,,3,,,,,,,,,,,2.3,33,,,B,(),,,,,,,534,,:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,,,,(),,D,910.42g/cm33,K9+130K9+186.7,3.1,,3.2,,0.71.1L/m2,3.3WCB-400,,,,,:1#550r/min;2#550r/min;400r/min,,,,,,,5km,20min3.41.2,LTN-1200,,,,,,1.2,1.18,3.5,:1)8t,,,;2)8t,14t,8t,,,;,,,,,,,2.02.5h8t,,,,,,,,,6321©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,,3.6,,,7d,,,,,,;,4,(),,,7d,,,,1d,3,3/MPa/%/%K8+6806.3720.0716.03K8+7304.6720.6016.90K8+7804.2419.8215.68K8+8307.3621.0716.26K8+8904.2420.4317.03K9+0204.8120.7717.815,,,,:1),,;2),13.2mm,15%25%,;3),,,,,91;4),,,,,0.4;5),;6),,;7),,,;8),1012cm,;9),,,734,,:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1].[J].,2003,30(3).[2]FederalHighwayAdministration.GuidelinesfortheDesignofSubsurfaceDrainageSystemsforHighwayStructuralSec2tions[R].PreparedbytheJointVentureofH.R.Cedergren,Sacramento,andKenOBrien&Associates,LongBeachandVentura,California,1972;issued1973[3]AASHTO.AASHTOGuideforDesignofPavementStructures[S].WashingtonD.C.,2002[4]JTJ018-97,[S].[5].[M].:,2002.[6]JTJ034-2000,[S].[7].[R].2003.[8].[D].,1999.DesignandConstructionofPorousCementTreatedPermeableBaseXIEJun1,2,CHENChong2ju1,ZHUYun2sheng1(1.KeyLaboratoryofEducationMinistry,TongjiUniversity,Shanghai200092,China;2.KeyLaboratoryofTransportationMinistry,ChangshaUniversityofScienceandTechnology,Changsha410076,China)Abstract:Itiscommonlyrecognizedthatagoodsubsurfacedrainagelayercanefficientlyinterceptanddischargefreewaterlaterallyawayfromthepavement.Inthepaper,thedesignandconstructionofporouscementtreatedpermeablebase(CTPB)isresearchedtogetherwithLong2DahighwayprojectinShenzhen.Bycomparisonandanalysisoftheresultsofexperiments,thepropertiesofpermeablematerialssuchascompressivestrength,coefficientofpermeability,voidrateareinvestigated,andpropergradationandproportioningispresented.Atthesametime,asubsurfacedrainagetestsectionisconstructedfortheroutinecontrollingandsomekeytechnologiesofconstructionmethodsalsoarepresentedinthepaper.Keywords:porosity;drainage;base8321©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.