格室作用机理.pptx

格室作用机理.pptx

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AgeotextileisplacedovertheinsitusoilNext,anaggregatesubbaseisplacedoverthegeotextile.Thedepthofthismaterialdependsontheloadandsub-soilsupport.TheGeowebsectionsarethenplacedTheninfilledandcompacted.Finally,thedesiredsurface.土工格室工作机理表面I填NF料ILL格室基层土工布地基GI荷VE载NLOAD承载能力破坏机理无侧限承载能力破坏机理无侧限承载表面故障预防机制受限制200mmGW20土工格室承载表面ImportantFactors受限制200mmGW20土工格室界面承载面板重要的因素200mmGW20土工格室截面受限制墙壁土壤相互摩擦作用重要因素受限制200mmGW20格室截面格室面积重要原因受限制200mmGW20格室截面格室厚度负荷分配系统荷载弯曲时刻负载抗性负荷分配系统荷载引起的弯曲力矩格室填充耐弯曲压缩密实负荷分配系统负载支持设计图表20000lb100TpirseiPressureCASESTUDIESRESEARCH混凝泥煤土坑中心线泥煤坑部分截面的荷载试验测试详细信息实验室：

加拿大皇家军事学院报告的日期：

1987年10月1.0m泥炭（700%水分）解决板加载梁荷格室床体（砾石填充）载泥煤坑荷载-挠度曲线（1000lb/ft）（4in）大型三轴试验的结果格室对土强度的影响s1-s3s3200mmGW20格室（500,000格室GW20地基实验板面（1.0mx1.0m）试验架制动器244kPa（5000psf）典型的循环负载测试结果硅砂下循环加载试验（0.6in）剪切盒测试结果Groundwaterflowingoutofthesurfacecanalsopresentproblems.VH坡长斜坡角度垂直高度水/重力问题表面冲刷地基材料地下水Therefore,anothercomponentofthesystemcanbeanerosioncontrolblanketGeotextilesmaybeneededforseparationparticularlywheninfillisaggregateandgroundwaterflowexists.AgeotextilelayercanalsohelpcreateamorestablevegetatedsystemwhenrootsgrowthroughthegeotextileandtheperforationsoftheGeowebwall.GeomembranemayalsobeprotectedwiththeGeowebsysteminapplicationssuchaspondliners,landfilllinersandlandfillcaps.Tendonsaregenerallyusedwithslopeandchannelprotectionsystemswhenunstabilizinggravitationalandhydrodynamicforcesexistorwhenslopesaresteepenoughthatmaterialswillnotnaturallystayonthem.Ifpenetrationoftheembankmentmaterialispossibleorifpenetrationofthegeosyntheticlayerispermitted,ATRAAnchorsareused.Ifpenetrationisnotpossible,loadistransferredfromthecell-totheATRArestraintclip-tothetendon-toadeadmananchor.坡长VH斜坡角度垂直高度地基材料解决办法顶锚定格室密实充填侵蚀控制床体土工材料地材筋人为锚点限制锚点密实充填锚点格室深度（d）坡度（b）格室斜率曲线最小填充深度（de）填充角度（f）格室长度（L）GeowebSlopeCurves斜坡角度地基材料解决办法表土加与植密被CASESTUDIESAgeotextileseparationlayerisgenerallyrecommendedwhenretainedsoilsdifferfrombackfillmaterials.Next,theGeoweblayersareconstructed.Eachlayerisdesignedtobestructuralstable.Eachlayeris-.expandedandpositioned,.infilledwithgoodstructuralmaterial,.theinfilliscompactedand.excessmaterialisremovedbeforethenextGeoweblayerisplaced.DrainageiscriticalinmanyinstallationsOneuniquecharacteristicoftheGeowebearthretentionsystemistheabilitytousetopsoilintheoutercellscreatingawallfacethatisagoodenvironmentforvegetation.Allwalldesignsmustconsiderhowthedetailsoftheland-usebothontopofthewallandatthebottomofthewallaffectthewallintegrity.保土留壤土工织物填料203mm土工格室GW2室0地下水表土加与植密被解决办法墙体破坏模式水平移动基地滑动倾覆转动瞬间转动承载能力倾斜解决水平移动基地滑动倾覆转动MOMENT转动承载能力倾斜解决First,thereisthegeotextileseparationlayer.ThisisgenerallyrecommendedSecond,thereistheperforatedGeowebsystemwithinfillchosenbasedontheproblemdetails.Third,thereisthetendonsandATRAAnchorsystem.Allthisisdesignedtocreateastablesystemsowhenmaximumflowoccurs,stabilityexists.顶宽底宽HV土工织物填料）土工格室筋深度解决办法锚固锚固点堆叠式格室加强多层格室边坡与植被的防护格室混凝填土充保护THEGEOWEBCELLULARCONFINEMENTSYSTEM13452水力半径R（m）5.505.004.504.003.503.002.50临界2.速00度Vc（m/s）1.501.000.500.000D50=150mmD50=100mmD50=75mmD50=38mmD50=22mmD50=14mm集料的流动阻力