隧道工程vc复合型衬砌钢筋施工技术交底 8页

技术交底书工程名称中子铺隧道技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日一、技术要求钢筋施工，隧道衬砌受力钢筋接头宜设在受力较小处，受拉钢筋宜采用机械连接或焊接，其他钢筋可采用绑扎搭接，隧道衬砌拱部及边墙钢筋接头不得采用焊接。二、施工工艺及流程图1.施工工艺钢筋进场钢筋加工钢筋绑扎、连接成品钢筋验收成品钢筋保护1）钢筋加工［1］钢筋的调直、除锈钢筋的表面应洁净，使用前应将表面油渍、污迹、锈皮、鳞锈等清除干净。钢筋应平直，无局部弯折。钢筋在调直机上调直后，其表面不应有削弱钢筋截面的痕迹。［2］钢筋切断和弯曲时注意长度准确，弯曲后平面上没有翘曲不平现象，钢筋弯曲点处不能有裂缝。钢筋加工成半成品后，按类别、直径、使用部位挂好标志牌并分类堆放整齐，使用时才吊、运送至使用部位。钢筋的弯制和末端的弯钩应符合设计及规范要求。［3］钢筋运输：钢筋在隧道内加工，加工好后由人工运至工作面，在运送及存放中要堆放整齐，轻抬轻放，防止变形。［4］加工后钢筋的允许偏差不得超过表中规定的数值：加工后钢筋的允许偏差表顺次名称允许偏差值（mm）1受力钢筋顺长度方向全长+102箍筋内径尺寸+53弯起钢筋的弯起位置20　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日设计未作规定时，所有受拉光面圆钢筋的末端应作180°的半圆弯钩，弯钩的内径不得小于2.5d，钩端应有留不小于3d的直线段。弯起钢筋应弯成平滑的曲线，其曲率半径不宜小于钢筋直径的10倍（光圆钢筋）或12倍（带肋Ⅱ级钢筋）。2）接头⑴焊接钢筋的接头应将施焊范围的浮锈、漆污、油渍等清除干净。⑵对于直径为10mm以上的热扎钢筋，其接头采用搭接或帮条电弧焊时，应符合下列要求：①焊接接头宜做成双面焊缝，Ⅰ级钢筋的焊接长度不小于钢筋直径的4倍。Ⅱ级、Ⅲ级和5号钢筋，其焊缝长度不小于钢筋直径的5倍，只有当不能做双面焊时，才允许用单面焊，其焊缝长度应增加一倍。②帮条电弧焊的帮条，宜采用与被焊钢筋同级别、同直径的钢筋；当采用不同直径的钢筋作帮条，且被焊钢筋与帮条钢筋均为I级钢筋时，两帮条钢筋的直径应大于或等于被焊钢筋的0.8d，当被焊钢筋与帮条钢筋为II、III级钢筋时，两帮条钢筋的直径应大于或等于0.9d。④搭接焊、帮条焊、接头的两极钢筋轴线应位于同一轴线上。⑤对于搭接和帮条焊接，其焊缝高度应为被焊接钢筋直径的0.3倍，且不小于4mm，焊缝宽度应为被焊接钢筋直径的0.7倍，且不小于8mm。钢筋与钢板焊接时，焊缝高度应为钢筋直径的0.35倍，且不小于4mm，焊缝宽度为钢筋直径的0.5倍，且不小于6mm。⑥电弧焊接接头外观检查应符合下列要求：a.焊缝表面平顺，无明显的咬边，凹陷、气孔和裂缝；b.用小锤敲击接头时，应发出清脆声；c.钢筋焊接尺寸偏差及缺陷的允许值见表：　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日搭接、帮条焊接头的允许偏差及缺陷表顺序偏差名称单位允许偏差及缺陷1条对焊接接头中心的纵向偏移mm0.5d2接头处钢筋轴线的曲折度43接头处钢筋轴线的偏移mm0.10dmm34焊缝高度mm+0.05d5焊缝宽度mm+0.1d6焊缝长度mm-0.50d7咬肉深度mm0.05dmm0.58焊缝表面上气孔和夹碴在长2d的焊缝表面上焊缝气孔及夹碴的数量和大小个2mm6注：d为被焊钢筋的直径（mm）。⑻钢筋采用绑扎接头，应遵守下列规定：①搭接长度不得小于表中规定的数值。　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日绑扎接头的最小搭接长度表顺序钢筋级别受拉区受压区1Ⅰ级钢筋30d20d2Ⅱ级钢筋35d25d②受拉区域内的光面圆钢筋绑扎接头的末端，应做彼此相对的弯钩，螺纹钢筋的绑扎头末端应做成彼此相对的直角弯钩。⑼钢筋接头应分散布置。配置在“同一截面”内的下述受力钢筋，其接头的截面积占受力钢筋总截面面积百分率，应符合下列规定：①闪光对焊接头在受弯构件的受拉区，不超过50%，在受压区不受限制。②绑扎接头在构件的受拉区中不超过25%，在受压区不超过50%。③焊接与绑扎接头距钢筋弯起点不小于10倍钢筋直径，也不应位于最大弯矩处。3）安装：⑴钢筋的安装位置，其间距、保护层及各部分钢筋的大小尺寸，均应符合设计图纸的规定。其偏差不得超过表中的规定。钢筋安装的允许偏差序号名称允许偏差1钢筋总截面面积的偏差（更换钢筋规格时）-2%2双排钢筋，其排与排间距的局部偏差+15mm3同一排受力钢筋间距的局部偏差拱部+10mm边墙+20mm4分布钢筋间距+20mm5箍筋间距+20mm6保护层厚度（c）+10mm-5mm⑵为保证混凝土保护层厚度，应在钢筋与模板之间设置强度不低于设计强度的混凝土垫块。垫　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n应埋设铁丝并与钢筋扎紧，并应互相错开，分散布置。⑶安装后的钢筋，应有足够的刚性和稳定性。三．注意事项：1、当钢筋存在脆断、焊接性能不良或力学性能显著不正常时等现象时，钢筋不能用于结构。2、受力钢筋、箍筋的弯钩和弯折符合规范要求。3、纵向受力钢筋的连接方式符合设计要求。4、钢筋安装时受力钢筋的品种、级别、规格和数量符合设计要求。5、施工用钢筋平直、无损伤、表面不得有裂纹、油污、颗粒状或片状老锈。6、钢筋连接接头位置、搭接长度符合要要求。7、受力钢筋间距、排距、保护层厚度、箍筋间距等不超过允许偏差。四．安全环保要求：（1）所有人员进入施工场地必须戴好安全帽，高空作业拴好安全绳，爬梯和施工平台应安全可靠；严禁吸烟。配电箱按“一机、一闸、一箱、一漏”要求配置，电焊机设置二次漏保装置。对钢筋加工机械设备由专人操作，无证人员严禁操作。钢筋工必须持证上岗。钢筋焊接时，应设临时档板，并有专人看管，防止焊渣或电火花点燃塑料防水板而引起火灾。半成品钢筋吊装作业由专人指挥。　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n五．VC复合型衬砌钢筋布置图及加工图　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：技术交底书工程名称中子铺隧道进口技术交底单位中铁十九局集团西成铁路客专线四川段XCZQ-1标第一项目部交底项目衬砌钢筋加工及安装(VC复合型衬砌）交底日期2013年8月20日fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7\n　　　　　　　　　　　　　　　　　　　　　　　　　接受人：技术负责人：交底人：fined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.(5)significantnearmissshouldbeattemptedasthecaseofresponsiblefortheaccidentandconstructionteaminjuriesaccidentpenaltyprovisions,mutatismutandis.Eight,shouldperformintheconstructionstandardsandspecifications,standardspecificationfor7