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Delegates, staff: Hello! in the run-up to the Spring Festival, we held one session of four staff representatives Conference 2013-workshop, full back in 2012, careful analysis of the current situation, discuss 2013 development plans. Here, on behalf of my company 2013 work reports to the General Assembly, for consideration. Pillar I, 2012 back in 2012, XX power companies adhere to the party's 17 great spirit for guidance, comprehensively implement the scientific concept of development, promoting cost-leadership strategy, standards, focus on implementation, lean management, continuously improve, smooth present safety situation of enterprise management, business management and control scientific and standardized, and the dedication of staff, manage a harmonious and democratic atmosphere of the good situation. Main indicators are as follows:-the battery indicator: power generation totaled 7.815 billion kWh, beyond the annual budget implementation capacity of 315 million kWh, an increase of 757 million kWh. Sales totaled 7.425 billion kWh, exceedingsales of 330 million kWh the annual Executive budget, an increase of 729 million kWh. --Security measures: unplanned outages 2.5 times. No personal injury accident occurred, no major accident and above, no major fire accidents without environmental pollution accidents, safety for three consecutive years to maintain stability to good posture. Business financial indicators: total profits of 255 million Yuan, beyond the annual budget of 207 million Yuan, beyond the Datang company index 41.89 million Yuan, an increase of 1.76 million Yuan, FCM assessment at grade four. --Energy: power supply standard coal completing 312.25 g/kWh, down 0.1 g/kWh; integrated auxiliary power consumption ratio in 5.12%, down 0.26%; pollutant emissions performance greatly reduced compared to last year, carbon 0.09 g/kWh, sulfur dioxide 0.104 g/kWh NOx 0.512 g/kWh; dust removal efficiency of more than 99.8%. --Reliability index: equivalent availability factor in 93.47%, increased 7.95% from a year earlier. Equivalent forced outage rate 0.08%, 0.16% reduction over the same period a year earlier. Major achievements: first, we should adhere to the two \nt system\strengthening technological research, strengthen hidden hazards control and intrinsic safety Enterprise construction took new steps. -The two \ng the power of the company management system and the application and implementation of the safety loop five-star management system, improve the safety management system, realize the system of safety control. Further regulate security routines, safety supervision and management network role to play to achieve closed-loop. Strengthening the supervision and management of habitual violation of, strengthening the safety supervision of outsourcing contractors. Carried out in spring and autumn of security inspections, flood control and inspection, safety production month, day supervision of production safety and the Olympic Games and other 大体积混凝土施工方案
一、编制依据
1. 图纸设计文件；
2. 《筏形基础》（11G101-3）；
3. 《建筑工程施工质量验收统一标准》（GB 50300-2013）； 4. 《混凝土结构施工质量验收规范》（GB 50204-2002）2011版； 5. 《混凝土质量控制标准》（GB 50164-2011）； 6. 《混凝土强度检验评定标准》（GBJ 107－2010）； 7. 《高层建筑箱形与筏形基础技术规范》（JGJ 6-2011）； 8. 《高层建筑混凝土结构技术规程》（JGJ 3-2010）； 9. 《混凝土泵送技术规程》（JGJ/T 10-2011）； 10. 《混凝土质量控制标准》（GB 50164-2011）； 11. 《建筑施工安全检查标准》（JGJ 59-2011）； 二、大体积混凝土筏板结构概况
林锦店新型社区康桥九溪郡·溪苑项目位于新郑市双湖大道与新郑路交叉路口西南角。我公司承建的303#、306#、309#楼概况如下：
楼号 建筑面积(m2) 建筑高度(m) 建筑层数 主体结构型式 基础结构型式 大体积混凝土构件： 基础筏板 面积(m2) 厚度(m) 砼体积(m3) 721 1.7 1250 303#楼 18546.05 98.2 306#楼 16209.27 97.25 地下3层，地上33层 钢筋混凝土剪力墙结构 桩筏基础 633 1.7 1100 1295 1.7 2250 309#楼 32544.82 97.25 三、施工条件及难点
基础筏板预计在2014年9月施工，该期间天气变化不大，白天平均气温为20℃～25℃,夜晚为16℃～20℃，昼夜温差预计为4℃～9℃。
施工中需解决以下难点：
1、控制混凝土的内外温差、内部综合温差。降温时大体积混凝土中心温度与表面
ctivities, comprehensive and tamping Safety Foundation ... Troubleshooting, management mechanism, give full play to role of technical supervision and realization of troubleshooting, management, improved process management. This year completed the boiler lower header leakage, boiler pressure, a major risk management, completed 29 of great risks and 3 General problems of governance. Complete chemistry lab construction, thermal control, and complete the boiler scale integrated management, host shafting vibration of 10 scientific and technological projects, such as. Complete supercritical 630MW on-line simulation system development and application of circulating water MCC standby power transformation, the transformation of desulfurization waste water, the unit water supply system of comprehensive treatment and discharge valve modification of coal mill 5 key technological transformation projects, group health is improved. --Science and technology innovation is further increased. Strengthen the characteristics of supercritical unit major issues, graduallyclearing the particularity of supercritical unit and regularity. Developed motor oil time management, switch action times, statistics, coal-aided measurement software, improves the production level of lean management. Increased investment in science and technology, reporting science and technology projects and 14 technical project total cost percentage of the total annual production output of 0.25%. \coal-fired power plant flue gas desulfurization, denitrification complete development and application of key technologies\project, won the national science and technology progress second prize. 630MW supercritical units optimized control strategies and the 630MW development and application of on-line simulation system for supercritical units, supercritical 600MW units of turbine driven boiler feed pump set of comprehensive treatment of defects Datang technology respectively one or two and third. Meanwhile, information technology achievements, the company was named \na power information technology benchmarking enterprises.\--Repair and maintenance has improved further. Modify the inspection standards and standards on a regular basis, standardizing work procedures, checking and inspection project. Deepening the BFS++ system, and implements maintenance information shared. Reorganizing RB logic again, and ensure the success of the RB. Innovating the mechanism of maintenance management, implemented a project manager system. Successful completion of two autonomous maintenance, reliability improved steadily. Implementing two c-level maintenance, project themselves 48.7% and 42.3%, respectively. Accomplish two circulating pumps repair and overhaul of four Mills, maintenance teams to get exercise. Promote the work of energy saving and consumption reducing, complete the unit energy consumption diagnosis, plant water balance test, 10 energy-saving projects. Second, we should adhere to \conomic benefits of improving, outreachDelegates, staff: Hello! in the run-up to the Spring Festival, we held one session of four staff representatives Conference 2013-workshop, full back in 2012, careful analysis of the current situation, discuss 2013 development plans. Here, on behalf of my company 2013 work reports to the General Assembly, for consideration. Pillar I, 2012 back in 2012, XX power companies adhere to the party's 17 great spirit for guidance, comprehensively implement the scientific concept of development, promoting cost-leadership strategy, standards, focus on implementation, lean management, continuously improve, smooth present safety situation of enterprise management, business management and control scientific and standardized, and the dedication of staff, manage a harmonious and democratic atmosphere of the good situation. Main indicators are as follow-the battery indicator: power generation totaled 7.815 billion kWh, beyond the annual budget implementation capacity of 315 million kWh, an increase of 757 million kWh. Sales totaled 7.425 billion kWh, exceedingsales of 330 million kWh the annual Executive budget, an increase of 729 million kWh. --Security measures: unplanned outages 2.5 times. No personal injury accident occurred, no major accident and above, no major fire accidents without environmental pollution accidents, safety for three consecutive years to maintain stability to good posture. Business financial indicators: total profits of 255 million Yuan, beyond the annual budget of 207 million Yuan, beyond the Datang company index 41.89 million Yuan, an increase of 1.76 million Yuan, FCM assessment at grade four. --Energy: power supply standard coal completing 312.25 g/kWh, down 0.1 g/kWh; integrated auxiliary power consumption ratio in 5.12%, down 0.26%; pollutant emissions performance greatly reduced compared to last year, carbon 0.09 g/kWh, sulfur dioxide 0.104 g/kWh NOx 0.512 g/kWh; dust removal efficiency of more than 99.8%. --Reliability index: equivalent availability factor in 93.47%, increased 7.95% from a year earlier. Equivalent forced outage rate 0.08%, 0.16% reduction over the same period a year earlier. Major achievements: first, we should adhere to the two \nt system\strengthening technological research, strengthen hidden hazards control and intrinsic safety Enterprise construction took new steps. -The two \ng the power of the company management system and the application and implementation of the safety loop five-star management system, improve the safety management system, realize the system of safety control. Further regulate security routines, safety supervision and management network role to play to achieve closed-loop. Strengthening the supervision and management of habitual violation of, strengthening the safety supervision of outsourcing contractors. Carried out in spring and autumn of security inspections, flood control and inspection, safety production month, day supervision of production safety and the Olympic Games and other温度相差过大，会在表面形成过大拉应力而使混凝土表面开裂；如混凝土内部温度过高，干缩、冷缩过大，降温过程中，内外约束的存在可能使底板产生裂缝。
2、施工采用泵送混凝土分层浇筑，混凝土浇筑强度较大，必须使混凝土具有足够的凝结时间和保塑性，以满足大工作面施工需要，防止出现施工缝。
3、改善底板外约束条件，确保底板底抗裂安全度。
针对以上难点，必须通过周密的施工组织措施，科学合理的配合比设计、严格的温度控制监测措施、严格的浇筑养护方法、严格的质量保证制度来确保大体积混凝土施工顺利完成。
四、大体积混凝土筏板的施工技术准备 1、混凝土供应准备
（1）本工程筏板混凝土为C35掺膨胀剂的补偿收缩防水混凝土，抗渗等级P8级。 （2）我项目部将采用商品混凝土浇筑，施工前三天，我项目部将要求商品混凝土供应商派技术人员和调度人员到现场，进行混凝土配合比交底，确定供应计划、混凝土运输线路。
（3）项目部提前做好现场准备，疏通道路，泵车就位，确保搅拌车到达到现场后能及时卸料。
2、机具准备
考虑各种不利因素的影响，并根据大体积混凝土施工的技术要求（大体积混凝土浇筑不宜过快，斜面分层时后一层浇筑时前一层的混凝土还没初凝为准，否则因水化热释放过于集中，容易引起温度裂缝），混凝土的浇筑速度以每小时60-80m3为宜,每栋楼号筏板使用一台臂长56m混凝土泵车结合溜槽浇筑。
其他施工机具的需用量计划见下表：
大体积混凝土浇筑施工机具一览表
序号 1 2 3 4 5 6
机具材料名称 插入式振动器 温度传感器 塑料薄膜 木抹子 铁锹 棉毡 单位 台 套 m2 个 把 m2 型号 A50mm 数量 6 2 2700 10 10 1300 备注 3台备用 1套备用 2
ctivities, comprehensive and tamping Safety Foundation ... Troubleshooting, management mechanism, give full play to role of technical supervision and realization of troubleshooting, management, improved process management. This year completed the boiler lower header leakage, boiler pressure, a major risk management, completed 29 of great risks and 3 General problems of governance. Complete chemistry lab construction, thermal control, and complete the boiler scale integrated management, host shafting vibration of 10 scientific and technological projects, such as. Complete supercritical 630MW on-line simulation system development and application of circulating water MCC standby power transformation, the transformation of desulfurization waste water, the unit water supply system of comprehensive treatment and discharge valve modification of coal mill 5 key technological transformation projects, group health is improved. --Science and technology innovation is further increased. Strengthen the characteristics of supercritical unit major issues, gradually clearing the particularity of supercritical unit and regularity. Developed motor oil time management, switch action times, statistics, coal-aided measurement software, improves the production level of lean management. Increased investment in science and technology, reporting science and technology projects and 14 technical project total cost percentage of the total annual production output of 0.25%. \-scale coal-fired power plant flue gas desulfurization, denitrification complete development and application of key technologies\oject, won the national science and technology progress second prize. 630MW supercritical units optimized control strategies and the 630MW development and application of on-line simulation system for supercritical units, supercritical 600MW units of turbine driven boiler feed pump set of comprehensive treatment of defects Datang technology respectively one or two and third. Meanwhile, information technology achievements, the company was named \na power information technology benchmarking enterprises.\--Repair and maintenance has improved further. Modify the inspection standards and standards on a regular basis, standardizing work procedures, checking and inspection project. Deepening the BFS++ system, and implements maintenance information shared. Reorganizing RB logic again, and ensure the success of the RB. Innovating the mechanism of maintenance management, implemented a project manager system. Successful completion of two autonomous maintenance, reliability improved steadily. Implementing two c-level maintenance, project themselves 48.7% and 42.3%, respectively. Accomplish two circulating pumps repair and overhaul of four Mills, maintenance teams to get exercise. Promote the work of energy saving and consumption reducing, complete the unit energy consumption diagnosis, plant water balance test, 10 energy-saving projects. Second, we should adhere to \conomic benefits of improving, outreachDelegates, staff: Hello! in the run-up to the Spring Festival, we held one session of four staff representatives Conference 2013-workshop, full back in 2012, careful analysis of the current situation, discuss 2013 development plans. Here, on behalf of my company 2013 work reports to the General Assembly, for consideration. Pillar I, 2012 back in 2012, XX power companies adhere to the party's 17 great spirit for guidance, comprehensively implement the scientific concept of development, promoting cost-leadership strategy, standards, focus on implementation, lean management, continuously improve, smooth present safety situation of enterprise management, business management and control scientific and standardized, and the dedication of staff, manage a harmonious and democratic atmosphere of the good situation. Main indicators are as follows:-the battery indicator: power generation totaled 7.815 billion kWh, beyond the annual budget implementation capacity of 315 million kWh, an increase of 757 million kWh. Sales totaled 7.425 billion kWh, exceedingsales of 330 million kWh the annual Executive budget, an increase of 729 million kWh. --Security measures: unplanned outages 2.5 times. No personal injury accident occurred, no major accident and above, no major fire accidents without environmental pollution accidents, safety for three consecutive years to maintain stability to good posture. Business financial indicators: total profits of 255 million Yuan, beyond the annual budget of 207 million Yuan, beyond the Datang company index 41.89 million Yuan, an increase of 1.76 million Yuan, FCM assessment at grade four. --Energy: power supply standard coal completing 312.25 g/kWh, down 0.1 g/kWh; integrated auxiliary power consumption ratio in 5.12%, down 0.26%; pollutant emissions performance greatly reduced compared to last year, carbon 0.09 g/kWh, sulfur dioxide 0.104 g/kWh NOx 0.512 g/kWh; dust removal efficiency of more than 99.8%. --Reliability index: equivalent availability factor in 93.47%, increased 7.95% from a year earlier. Equivalent forced outage rate 0.08%, 0.16% reduction over the same period a year earlier. Major achievements: first, we should adhere to the two \nt system\strengthening technological research, strengthen hidden hazards control and intrinsic safety Enterprise construction took new steps. -The two \ng the power of the company management system and the application and implementation of the safety loop five-star management system, improve the safety management system, realize the system of safety control. Further regulate security routines, safety supervision and management network role to play to achieve closed-loop. Strengthening the supervision and management of habitual violation of, strengthening the safety supervision of outsourcing contractors. Carried out in spring and autumn of security inspections, flood control and inspection, safety production month, day supervision of production safety and the Olympic Games and other3、人员准备
（1）为保证混凝土浇筑连续进行，大体积混凝土施工时应有生产组织保证，管理组织安排：现场总负责人、施工员、安全员各1人。
（2）混凝土浇筑操作人员及养护分两班作业，每班作业12h。
作业面负责人由混凝土班组长负责，各班组由负责人跟班管理，进行过程控制。每作业班组的操作人员安排如下：
混凝土振捣 泵车出料 牵引泵管、摊铺 收面 养护
3人 2人 6人 3人 2人
（3）钢筋工、木工各派2人现场值守，对混凝土浇筑过程中钢筋或模板出现的问题及时整改，保证混凝土浇筑不间断进行。
（4）其它后勤保障人员：
物资（外部协调搅拌、运输） 后勤 电工
4、作业条件
（1）筏板钢筋绑扎、抗水板插筋施工完毕，隐蔽验收合格；
（2）后浇带按设计要求留置，外墙吊模、电梯基坑（集水坑）内模验收合格； （3）防雷接地施工完毕，隐蔽验收合格；
（4）止水钢板安装完毕，底板防水卷材甩槎长度满足设计要求，并采取保护措施； （5）测量放线已复核完毕，满足设计要求；筏板面标高+50cm线投测至墙柱插筋上并用胶带作标记。
五、施工工艺 1、混凝土浇筑方法
混凝土采用斜面分层浇筑法，使斜截面自然成坡、分层一次到顶连续浇筑，不留施工缝。每层浇筑厚度500mm，从一侧向另一侧一次性浇筑，上翻300高外墙待基础底板浇筑约2小时后浇筑，底板及外墙的混凝土浇筑均应连续，不留施工缝。
混凝土浇筑由一侧向另一侧平行后退。每台班配3台振动器负责振捣，每个工作班
ctivities, comprehensive and tamping Safety Foundation ... Troubleshooting, management mechanism, give full play to role of technical supervision and realization of troubleshooting, management, improved process management. This year completed the boiler lower header leakage, boiler pressure, a major risk management, completed 29 of great risks and 3 General problems of governance. Complete chemistry lab construction, thermal control, and complete the boiler scale integrated management, host shafting vibration of 10 scientific and technological projects, such as. Complete supercritical 630MW on-line simulation system development and application of circulating water MCC standby power transformation, the transformation of desulfurization waste water, the unit water supply system of comprehensive treatment and discharge valve modification of coal mill 5 key technological transformation projects, group health is improved. --Science and technology innovation is further increased. Strengthen the characteristics of supercritical unit major issues, gradually 1人 2人 1人
clearing the particularity of supercritical unit and regularity. Developed motor oil time management, switch action times, statistics, coal-aided measurement software, improves the production level of lean management. Increased investment in science and technology, reporting science and technology projects and 14 technical project total cost percentage of the total annual production output of 0.25%. \-scale coal-fired power plant flue gas desulfurization, denitrification complete development and application of key technologies\oject, won the national science and technology progress second prize. 630MW supercritical units optimized control strategies and the 630MW development and application of on-line simulation system for supercritical units, supercritical 600MW units of turbine driven boiler feed pump set of comprehensive treatment of defects Datang technology respectively one or two and third. Meanwhile, information technology achievements, the company was named \na power information technology benchmarking enterprises.\--Repair and maintenance has improved further. Modify the inspection standards and standards on a regular basis, standardizing work procedures, checking and inspection project. Deepening the BFS++ system, and implements maintenance information shared. Reorganizing RB logic again, and ensure the success of the RB. Innovating the mechanism of maintenance management, implemented a project manager system. Successful completion of two autonomous maintenance, reliability improved steadily. Implementing two c-level maintenance, project themselves 48.7% and 42.3%, respectively. Accomplish two circulating pumps repair and overhaul of four Mills, maintenance teams to get exercise. Promote the work of energy saving and consumption reducing, complete the unit energy consumption diagnosis, plant water balance test, 10 energy-saving projects. Second, we should adhere to \conomic benefits of improving, outreach3