DB11_T 1972-2022 城市轨道交通工程冻结法施工技术规范.docx

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1、北京市地方标准DB编号：DB11/T19722022城市轨道交通工程冻结法施工技术规范Technicalspecificationforfreezingmethodconstructionofurbanrailtransitproject20220328发布20220701实施北京市住房和城乡建设委员会北京市市场监督管理局联合发布目次1总则.12术语.23基本规定.54基础资料.65冻结设计.75.1一般规定.75.2冻结壁结构设计.85.3制冷系统与冻结工艺设计.105.4冻结孔布置设计.155.5测温孔布置设计.175.6水文观测孔、泄压孔布置设计.185.7保温设计.185.8其它设计.

2、196冻结施工.206.1一般规定.206.2竖向冻结孔施工.206.3横向冻结孔施工.216.4冻结器安装.266.5测温孔施工与装置安装.226.6水文观测孔、泄压孔施工与装置安装.256.7制冷系统安装与运转.266.8积极冻结与维护冻结.286.9停冻与解冻.296.10竖向冻结器拆除与冻结孔（管）充填.306.11横向冻结器拆除与冻结管（孔）充填.306.12局部冻结临时割管与恢复.316.13制冷系统拆除.327冻结壁检测与判断.337.1一般规定.337.2竖向冻结壁检测与判断.337.3横向冻结壁检测与判断.348冻结法土体开挖与结构施工.368.1一般规定.368.2竖向冻结

3、法基坑土体开挖与结构施工.368.3横向冻结法隧道初支与二衬结构施工.378.4局部冻结法基坑土方开挖与结构施工.388.5冻结法盾构始发与接收端掘进.388.6施工监测.399充填注浆与融沉注浆.419.1一般规定.419.2充填注浆.419.3融沉注浆.4110质量验收.4310.1一般规定.4310.2冻结孔施工质量验收.4410.3孔口管安装质量验收.4510.4冻结器安装质量验收.4510.5测温孔施工与装置安装质量验收.4610.6水文观测孔、泄压孔施工与装置安装质量验收.4710.7制冷站安装工程质量验收.4810.8制冷工程质量验收.4910.9充填与融沉注浆工程质量验收.50

4、附录A北京地区典型土层冻土力学参数.52本规范用词说明.53引用标准名录.54附：条文说明.55Contents1GeneralProvisions.12Terms.23BasicRequirements.54Basicdata.65Groundfreezingdesign.75.1GeneralRequirements.75.2Frozenwalldesign.85.3Designofrefrigerationsystem.105.4Configurationsdesignoffreezeholes.155.5Layoutdesignoftemperaturemeasuringhole.17

5、5.6Designforlayoutofhydrologicalobservationholeandpressurereliefhole.185.7Thermalinsulationdesign.185.8Otherdesign.196Freezingconstruction.206.1GeneralRequirements.206.2Verticalfreezeholeconstruction.206.3Installationandoperationofrefrigerationsystem.216.4Freeze-tubeassembliesinstallation.226.5Const

6、ructionandinstallationoftemperaturemeasuringholes.256.6Constructionanddeviceinstallationofhydrologicalobservationholeandpressurereliefhole.256.7Horizongtalfreezeholeconstruction.266.8Activefreezingandmaintenancefreezing.286.9Freezingandthawing.296.10Removalofverticalfreezerandfillingoffreezinghole(p

7、ipe).306.11Removaloftransversefreezerandfillingoffreezingtube(hole).306.12Localfreezingtemporarypipecuttingandrecovery.316.13Removalofrefrigerationsystem.327DetectionandJudgmentoffrozenwall.337.1GeneralRequirements.337.2DetectionandJudgmentofverticalfrozenwall.337.3DetectionandJudgmentofhorizontalfr

8、ozenwall.348DetectionandJudgmentofhorizontalfrozenwall.368.1GeneralRequirements.368.2Verticalfreezingmethodforexcavationoffoundationpitandconsctructionofstructure368.3Horizontalfreezingmethodforprimarysupportandsecondaryliningofconnectingbypassandhorizontaladit.378.4Earthworkexcavationandstructuralc

9、onstructionoffoundationpitbylocalfreezingmethod.388.5Freezingmethodforshieldlaunchingandshieldarrival.388.6Constructionmonitoring.399Fillinggroutingandthawsettlementgrouting.419.1GeneralRequirements.419.2Fillinggrout.419.3Thawingsettlementgrout.4110Qualityacceptance.4310.1GeneralRequirements.4310.2Q

10、ualityacceptanceoffreezehole.4410.3QualityacceptanceofOrificepipeinstallation.4510.4QualityacceptanceofInstallationoffreezingpipeandfreezer.4510.5QualityacceptanceofInstallationoftemperaturemeasuringdevice.4610.6Qualityacceptanceofdeviceinstallation（pressurereleasehole）andconstructionforhydrological

11、observationhole.4710.7QualityacceptanceofInstallationoftransversehydrologichole(pressurereliefhole)device.4810.8QualityacceptanceofInstallationofrefrigerationstation.4910.9QualityacceptanceofRefrigerationengineering.50AppendixAMechanicalparametersoffrozensoiloftypicalsoilinBeijing.52Explanationofwor

12、dinginthestandard.53ListofQuotedstandards.54Addition:Explanationofprovisions.551总则1.0.1为加强北京市城市轨道交通建设工程冻结法施工技术管理，促进技术进步，保证工程质量和施工安全，做到工程经济合理、绿色环保，特制定本规范。1.0.2本规范适用于北京市城市轨道交通工程人工地层冻结法施工。1.0.3北京市轨道交通工程冻结法施工，除应符合本规范外，尚应符合国家及北京市现行有关标准的规定。12术语2.0.1冻结法groundfreezingmethod用人工冻结的方法对构筑物周围及基底含水地层进行冻结，形成具有临时承载或隔水作用的冻结壁，在其保护下进行地下构筑物安全施工的一种方法。2.0.2竖向冻结verti