透水路面设计的几个问题

透水路面设计的几个问题(,110168)(,110015)介绍了几种典型透水路面的构造形式及蓄水型基层厚度的计算方法,根据实验室的研究结果明确提出透水路面土基设计的几点要求:较高的渗透性;饱水状态下冻胀小;满足承载力要求,且饱水状态承载力损失小透水路面蓄水基层土基溢流,,:,,,,,,,,,,,,,1,:;,,,,,,,122,,(),0.7,53mm,5~25mm,46%,:2.1具有较小蓄水能力的透水路面,,,,11123432.2具有较大蓄水能力的透水基层的透水路面,,,,,,,,,1234545,,,,,2.3内部具有溢流结构的透水路面(1),6,,,,(),,,10,,15~20cm,123456786(2):7,,,,2.4周边溢流结构(1),,,,,,,,,82200712345678910117123458,,,,,,,,(2),,,,,123459,,,,,7,,2.5透水路面基层厚度设计:1234567891010(1)PSCS,(Qc)(2)(1)dpdp=(QcR+PFT)/Vr(1):dp;Qc;R=Ac/ApAc(m2);Ap(m2);P;F(m/h);T(2h);Vr(0.4)(3)(2)dmax=FTs/Vr(2):dmax;Ts72hdpdmax,0.6m:h+0.6dpdmax3,31:,,,,,:(1);(2);(3),3,,,,62.5%,62.5%,,,,,,,,,4,,,,1,,,[J],2004,(2)2[J]2005(2)3KoreaEcoLable.EL245-water-permeableconcretepavement[S]20044[J].:,2006,21(5)5[J]2004(8)6[S]20057AndreaM.Braga.AnInfiltrationAnalysisoftheVillanovaPorousConcreteInfiltrationBasinBMP[J]20058MichaelKwiatkowsk.iWaterQualityStudyofaPorousConcreteInfiltrationBestManagementPractice.[J]20059L.Dumoulin.FeasibilityofDifferentiatingPorousConcretethroughPassiveInfra-redImaging.[J]200510[J].:,2006,22(2)SomeProblemsaboutPerviousPavementDesignAbstractThepaperintroducessomestructuralformsoftypicalperviouspavementandmethodsofcalculationforwaterstoragebase.Basedonlabstudy,itdefinitelyputsforwardthefollowingrequirementsforperviouspavementmatrix:higherpermeability;smallerfrostheavecapacityundersaturatedstate;meetingdemandsforbearingcapacityandassuringminorlossofbearingcapacityinsaturatedstate.KeywordsPerviouspavementWaterstoragebaseMatrixOverflow42007