4机导水机构安全措施

施工技术措施申报表七局机电安装[2015]技案004号承建单位：中国水利水电第七工程局有限公司多布水电站机电安装项目经理部合同名称：国电西藏尼洋河多布水电站机电设备安装工程合同编号：XZDB-SG-2012-98致：咨询西北公司多布水电站监理中心事由：报送西藏多布水电站导水机构安装安全技术措施。请贵部审核。附件：《西藏多布水电站机电设备安装工程导水机构安装安全技术措施》承建单位：中国水利水电第七工程局有限公司多布水电站机电安装项目经理部项目经理：日期：年月日监理机构审查意见：监理工程师：日期：年月日总监理工程师审定的意见：审查意见：□同意□修改后再报（见附言）□不同意总监理工程师：日期：年月日注：特殊技术、工艺方案经总监理工程师批准，一般由监理工程师审批。由承建单位呈报四份，监理单位审批后，承包人、监理各1份，建设单位2份。中国水利水电第七工程局有限公司西藏多布水电站机电设备安装工程导水机构安装安全技术措施批准：校核：编写：中国水利水电第七工程局有限公司西藏多布水电站机电设备安装项目经理部2015年04月05日中国水利水电第七工程局有限公司导水机构安装安全技术措施目录1编制依据··························································································································································12工程概况··························································································································································14组织机构··························································································································································25安全技术措施··················································································································································35.1安全技术准备···········································································································································35.1.1技术准备····························································································································································35.1.2导水机构整体吊装参数校核···························································································································35.2安全资源准备············································································································································45.3安全保证措施···········································································································································55.3.1施工现场安全防护············································································································································55.3.2施工用电与照明················································································································································65.3.3施工现场消防····················································································································································65.3.4对施工作业人员安全要求·······························································································································75.3.5大件吊装作业····················································································································································85.3.6设备清扫与组合················································································································································85.3.7施工脚手架与平台的使用和要求···················································································································9中国水利水电第七工程局有限公司导水机构安装安全技术措施1导水机构安装安全技术措施1编制依据1）国标《危险化学品重大危险源辨识》GB18218-2009.2）建设部《危险性较大的分部分项工程安全管理办法》(建质[2009]87号)3）水电七局《施工重大危险源辨识》4）水电七局危险作业许可证管理办法5）多布水电站机电安装施工组织设计2工程概况多布水电站是西藏自治区“十二五”能源发展规划重点项目，是尼洋河综合治理与保护规划优选项目。电站位于西藏自治区林芝县境内，距林芝地区行署所在地八一镇约28km，川藏公路从左岸通过，交通相对便利。主厂房1#～4#机导水机构由东方电机有限公司制造，散件到货，主要由导水机构内、外环、导叶、控制环等组成，在安装间导水机构工位预装，吊装总重70.65t。预装完成后，采用主厂房Q-125t桥机及厂家提供导水机构翻身工具进行翻身吊装作业。其主要部件尺寸及重量见下表：序号名称最大外形尺寸(mm)重量（t）1导水机构外环Ф7220×Ф5345×189025.402导水机构内环Ф3380×Ф2467×10837.723导叶（共16件）3945×210×118015.844控制环Ф92007.95导叶臂1.656吊装加固支撑3.57翻身工具2.78其它…….吊装总重87.5中国水利水电第七工程局有限公司导水机构安装安全技术措施23风险分析3.1危险作业辨识1）起重吊装作业2）大型金属结构安装作业3）大型设备运输作业3.2危险环境辨识1）高空作业2）空间作业受限2）潮湿环境作业3.3重大危险源大型设备起重吊装施工4组织机构4.1组织机构为加强施工安全工作的宏观控制与管理、杜绝事故发生、保证导水机构安装工作的顺利进行，结合厂房安装实际情况成立导水机构安装安全督察小组。小组主要作用是对安装全过程安全监控、确保按照既定方案进行施工和施工过程中的安全违章。小组机构如下：组长：王贵清副组长：赵振宇专职安全员：刘惠峰成员：杜章华、唐力、张洪芳、程正猛、徐志军等起重指挥：田景峰信号指挥：向轩4.2机构职责导水机构安装存在大件吊装、高空作业等高危作业，领导小组的主要作用如下：1)保证安全防护用品及时投入，确保安全生产工作顺利进行；2)负责安全技术交底，对导水机构安装进行过程安全控制，督促各项安全措施的落实；中国水利水电第七工程局有限公司导水机构安装安全技术措施33)负责对职工进行安全教育，增强施工人员的安全生产意识，提高施工人员安全生产技能；4)对导水机构安装过程的安全工作随时检查监督；5)对各工种安全施工准备等进行检查；6)及时协调安全施工其它事宜。5安全技术措施5.1安全技术准备5.1.1技术准备认真熟悉监理签发提供的导水机构安装图纸、资料、说明书及相关工艺文件，分析导水机构安装工作中各项安全隐患和安全控制重点，根据图纸资料和相关安全管理规程编写导水机构安装技术措施和专项安全措施报监理人审批；对参加施工的全体人员进行安全技术交底，详细讲解导水机构安装的施工特点、施工方案、施工程序、安全措施等。5.1.2导水机构整体吊装参数校核导水机构在安装间工位预装好后，装配好厂家到货吊装及翻身工具，利用厂房Q125桥机进行翻身吊装，翻身时在导水机构下端翻身工具下应垫枕木，吊装布置见下图1。导水机构整体吊装时钢丝绳受力计算及选型：钢丝绳承受拉力计算S=(Qg/n)×(1/sinβ)=(87.5×9.8÷4)×(1÷sin60)=247.6KN式中S—一根吊索承受的拉力（KN）;Q—吊重的重量（87.5t）；g—重力加速度，g=9.8m/s2；n—吊索支数；β—钢丝绳与水平面夹角（按60°计算）。查表6×37(抗拉强度1550N/mm2)φ52mm钢丝绳破断拉力为1555.0KN,按6倍安全系数考虑，容许拉力为[Fg]=Fg/K=259.16KN根据上述计算，现场选用4支6×37(抗拉强度1550N/mm2)φ52mm钢丝绳容许拉力[Fg]259.16KN大于钢丝绳计算承受拉力（247.6KN），满足导水机构整体安全吊装要求。中国水利水电第七工程局有限公司导水机构安装安全技术措施4图1导水机构翻身吊装示意5.2安全资源准备为确保导水机构安装的顺利进行，在短时间内圆满完成该桥机安装，我部配置了满足施工安全工作的相应配置。具体配置见表1。表1安全资源配置表序号名称型号规格单位数量备注1安全带根152安全警示牌张103灭火器个84防滑鞋双20高空作业必须穿6槽钢14＃米60用于加固7钢管Φ219米35用于加固8钢板σ20m212用于加固桥机主钩枕木副钩翻身工具中国水利水电第七工程局有限公司导水机构安装安全技术措施59方木1.5m根12防止硬接触10架管φ40m60011石棉布㎡50焊接防火12彩条布㎡100设备遮挡5.3安全保证措施确保机组导水机构安装顺利进行和工程安全是我部的责任和坚定不移的目标。根据国家有关安全生产法规和业主有关规定，我部建立健全安全管理