北京地铁16号线工程土建施工07合同段

马连洼站

3号风道模板支撑体系 安全专项施工方案

编制： 审核： 审批：

中铁二局股份有限公司 2016年01月20日

北京地铁16号线工程土建施工07合同段 3号风道模板支撑体系安全专项施工方案

目 录

1. 编制说明 ·································································································· 5 1.1. 编制依据 ····························································································· 5 1.2. 编制原则 ····························································································· 5 1.3. 适用范围 ····························································································· 5 2. 工程概况 ·································································································· 6 2.1. 设计概况 ····························································································· 6 2.2. 水文情况 ··························································································· 10 2.3. 模板支撑工程特点 ··············································································· 10 3. 施工筹划 ································································································ 11 3.1. 施工组织安排 ····················································································· 11 3.2. 施工进度计划 ····················································································· 11 3.3. 材料与设备计划 ·················································································· 11 3.4. 劳动力计划 ························································································ 12 4. 施工方案及施工要求 ················································································· 13 4.1. 材料规格及性能指标 ············································································ 13 4.2. 施工要求和技术保证条件 ····································································· 14

4.2.1. 模板支架施工原则 ···································································· 14 4.2.2. 扣件式模板支撑设置 ································································· 19 4.3. 模板支架构造设置 ··············································································· 21

4.3.1. 扣件支架构造设置 ···································································· 21 4.3.2. 模板支撑构造设置 ···································································· 21 4.3.3. 施工构造技术要求 ···································································· 25 4.4. 初支拆除施工 ····················································································· 26

4.4.1. 初支拆除区域 ·········································································· 26 4.4.2. 初支拆除方法 ·········································································· 30 4.5. 主体结构施工工艺 ··············································································· 30 4.6. 模板支架的检查与验收········································································· 31

4.6.1. 进场材料及资料检查 ································································· 31 4.6.2. 模板支架搭设验收 ···································································· 32 4.7. 混凝土浇筑施工要求 ············································································ 33

北京地铁16号线工程土建施工07合同段 3号风道模板支撑体系安全专项施工方案

4.8. 模板拆除次序及安全关键点控制 ···························································· 34

4.8.1. 拆模次序及要求 ······································································· 34 4.8.2. 安全关键点的控制 ···································································· 35

5. 施工安全、质量保证措施 ··········································································· 35 5.1. 安全管理组织措施 ··············································································· 35

5.1.1. 安全管理组织体系 ···································································· 35 5.1.2. 安全检查措施 ·········································································· 36 5.1.3. 安全教育措施 ·········································································· 37 5.1.4. 安全保障措施 ·········································································· 37 5.2. 模板支撑架施工安全措施 ····································································· 38

5.2.1. 支撑架的使用及管理 ································································· 38 5.2.2. 支撑架拆除安全技术措施 ··························································· 38 5.2.3. 模板工程施工安全措施 ······························································ 39 5.2.4. 施工过程监控巡视 ···································································· 40 5.3. 用电安全保证措施 ··············································································· 41

5.3.1. 用电规章制度 ·········································································· 41 5.3.2. 施工用电的安全技术措施 ··························································· 41 5.3.3. 施工停电应急措施 ···································································· 44 5.3.4. 照明要求 ················································································ 45 5.4. 防火及排水安全保证措施 ····································································· 45 5.5. 质量保证措施 ····················································································· 45

5.5.1. 钢筋工程质量保证措施 ······························································ 45 5.5.2. 混凝土工程质量保证措施 ··························································· 46 5.6. 成品保护措施 ····················································································· 49 6. 模板支架坍塌、倾覆事故应急预案 ······························································· 49 6.1. 应急处置基本原则 ··············································································· 49 6.2. 组织机构及职责 ·················································································· 50 6.3. 信息报告程序 ····················································································· 51 6.4. 应急处置及逃生通道设置 ····································································· 52 6.5. 培训和演练 ························································································ 53 6.6. 应急物资的准备、维护、保养 ······························································· 53 7. 模板支架设计计算 ···················································································· 53

北京地铁16号线工程土建施工07合同段 3号风道模板支撑体系安全专项施工方案

7.1. 计算说明及准备 ·················································································· 53

7.1.1. 材料物理力学性能 ···································································· 54 7.1.2. 设计计算模型 ·········································································· 54 7.1.3. 荷载计算说明 ·········································································· 54 7.2. 侧墙模板支撑验算 ··············································································· 55

7.2.1. 墙模板验算 ············································································· 57 7.2.2. 墙次楞验算 ············································································· 58 7.2.3. 墙主楞验算 ············································································· 59 7.3. 中板模板支撑验算 ··············································································· 61

7.3.1. 模板验算 ················································································ 61 7.3.2. 中板次楞验算 ·········································································· 62 7.3.3. 中板主楞验算 ·········································································· 64 7.3.4. 顶板主楞验算 ·········································································· 65 7.3.5. 模板验算 ················································································ 66 7.4. 脚手架稳定性验算 ··············································································· 68

7.4.1. 水平扣件支架验算 ···································································· 68 7.4.2. 竖向扣件支架验算 ···································································· 69 7.5. 建模分析 ··························································································· 70 7.6. 验算结论 ··························································································· 70