主厂房垫层施工方案.doc

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1、1.编制依据：1.1青海华电大通发电有限公司2300MW工程主厂房基础施工图，图纸分册号F1028s-T-01。1.2青海华电大通发电有限公司2300MW工程土建专业施工组织设计。1.3混凝土结构工程施工质量验收规范GB50204-2002。2.工程概况：青海华电大通发电有限公司2300MW工程位于青海省西宁市大通县东南约3km处，主厂房基础共50个，布置在A、B、C、D共4排及-轴上，包括A-J-1、A-J-2、B-J-1、B-J-2、B-J-3、C-J-1、C-J-2、D-J-1、D-J-2共9种，详见下表：基础编号所处位置垫层顶标高轮廓尺寸（mm）数量A-J-1A排-、-、-、-轴-5.

2、04700540010012A-J-2A排轴-5.0650054001001B-J-1B排-、-、轴-6.0570064001008B-J-2B排-6.0750064001001B-J-3B排-6.0780048001001C-J-1C排-、-轴-6.06700780010013C-J-2C排-6.0850078001001D-J-1D排-、-轴-6.06100700010013D-J-2D排-6.0790070001001主厂房基础全部为钢筋混凝土结构，0.00米标高相当于1956年黄海高程2416.10米。基础垫层轮廓尺寸见上表。混凝土垫层标号：C10。基础垫层砼总量约m。.3.施工要点：

3、3.1二次开挖：第一次土方施工采用机械开挖，坑底预留50cm厚松散卵石层（4.50米），垫层施工前，采用人工二次开挖，人工修整尽可能一次成活，少扰动原土层。3.2轴线标高控制：施工场地地势低洼，根据厂区控制网在基坑内作出若干临时控制点作为控制人工开挖位置、标高的控制。临时控制点的做法在场地四周做控制桩，木桩上设一寸小钢钉定位，木桩周围用砼维护进行保护。3.3. 测量放线：根据临时控制桩，由测量人员用经纬仪冲出几条正交轴线作为以后施工放线基准线。现场施工人员，根据放线要求，轴线加密，分别尺量翻出各条轴线，放出各基础垫层。3.4模板支设：结合二次人工开挖，基坑开挖尺寸控制与垫层尺寸相同或稍大，不考

4、虑模板支设，直接用基坑侧壁作为模板。保证基础外放尺寸不小于100cm。对于垫层标高控制，采用每m2布置一个钢筋桩头，在模板范围内均匀布置。为确保垫层顶面平整，在钢筋桩部位贴饼并冲筋，便于收面拖平。浇筑砼前，检查基坑是否偏移及尺寸是否满足设计要求等，经检查合格后，方可进行浇筑。3.5砼浇筑：砼由搅拌站供应，采用罐送砼，小翻斗车配合运输，人工铺设整平。振动棒震捣密实，保证原浆出现为止，用刮尺按冲筋拖平，木夯搓两遍拍实、压平。待砼初凝后，白天可浇水养护，塑料薄膜随后覆盖，用草帘覆盖两层。3.6砼浇筑顺序：从固定端开始浇筑垫层，向扩建端依次进行，浇筑依次为D排C排B排A排，罐车沿汽机间行驶，翻斗车配合

5、将砼运至基坑位置，倒在基坑旁铁皮或竹胶板上，用铁锨入模，不能用翻斗车直接入模。4.质量措施及质量标准4.1坚持“上道工序未检查验收合格，不准进入下道工序”的原则。4.2砼现场浇捣设专人负责，做到整齐有序。4.3搅拌站要专人严控配合比、水灰比，未经试验室同意，任何人不得以任何理由随意加水，修正配合比。4.4砼浇筑完后，及时收面，一定要二次抹压。初凝后，塑料膜及时覆盖，谨防表面裂缝。4.5质量标准序号项目允许偏差(mm).检验方法1轴线位移5钢尺检查2模板尺寸10钢尺检查3模板对角线差7钢尺检查4砼面平整度52m靠尺和塞尺检查5垫层厚度-100钢尺检查5.安全措施5.1 坚持班前“三查”、“三交”

6、及班后小结制度。5.2 施工人员必须以良好的精神面貌列队进入施工现场，并正确 佩戴安全帽。 5.3夜间施工，施工道路及作业区域必需有充足的活动照明，非电工人员不得随意接电，必需保证线路安全可靠。5.4现场基坑要按要求围护，空洞必须用钢蓖子覆盖。5.5錾桩及除锈人员戴好防护用具，谨防溅物伤人。5.6车辆进入施工现场，必须按规划行车路线行驶。罐车停靠，专人负责指挥。5.7现场安全员随时检查，发现隐患，及时消缺。6.文明施工 6.1 材料堆放整齐、有序，保证现场整洁，并做到一日一清。6.2施工机具要摆放合理，使用方便可靠。6.3施工期间防止二次污染，路面上洒灰要及时清理。6.4进入施工现场严禁吸烟，

7、严禁嬉笑打闹。6.5该道工序施工完，做到“工完料尽场地清”。7.主要料器具及劳动力主 要 料 器 具 一 览 表序号名称规格数量备注钢筋头30CM长600根直径12翻斗车两台插入振动棒4个刮杠2M长4个塑料膜1500棉线0.5公斤油漆5公斤1桶毛笔5支油漆刷2寸5把每 班 劳 动 力 一 览 表 序号工种人数备注1技术员1人2技工12人负责砼振捣及收面3普工20人负责砼运输及铺平4电工1人5机械工2人8.计划有效工期1#主厂房垫层：5天2#主厂房垫层：6天3 / 3为了促进本公司各项经营活动由事后管理向事前管理方式的转变，强化生产经营全过程控制，提高资金使用的计划性，特制定本管理办法，以增加公

8、司资金运行的透明度，降低各项成本，使有限的资金发挥最大的效能。treatment of heavily polluting industries. According to municipal, and municipal government deployment of seven big heavy pollution industry regulation three years action plans, requirements to December 2016 end of Qian, all included shut stopped eliminated of enterpri

9、se all shut stopped eliminated in place; June 30, 2017 Qian, all included place regulation upgrade and agglomeration restructuring of enterprise by unified standard regulation in place, late not standard of enterprise are implementation discontinued; June 30, 2018 Qian, all intends Park production o

10、f enterprise relocation Park in place, late not Park of are discontinued. In the process of renovation, will focus on four aspects: to firmly close the high energy consumption and heavy pollution, hopeless enterprise governance and production lines, eliminated a number of yearly emission intensity,

11、low value-added products of backward production capacity. Second, we must strictly enforce the space, total project Trinity environment access system, promoting industry access and environmental conditions of access of enterprises to the Park, industrial park, in principle, no longer the class on th

12、e new project. Thirdly, promoting replacement and reconstruction of heavily polluting industries, mergers and reorganizations, guide enterprises to energy conservation, recycling and low-carbon and clean production, and improve the level of green development. Four to establish a long-term supervisio

13、n mechanism, increase the intensity of special inspections, investigate and punish the rectification is not in place, normal business of running anti-pollution installations do not. (Iii) linkage to promote flood control water, drainage, water supply, improving water saving. Speed up cross Yang supp

14、ort river dike reinforcement, and along Pu seawall except insurance reinforcement, and Lake Qian sluice, and BA Cao sluice, and cloud cover reservoir, focus flood control drainage engineering construction, vigorously implementation strong library solid di spread row engineering, increased geological

15、 disaster hidden points governance efforts, solid advance small basin torrent disaster governance, efforts from essentially solution basin sex, and regional flood control drainage capacity insufficient of problem. Vigorously implement the piers, algae and other water sources protection and, promotin

16、g rural drinking water safety projects, setting up water pricing reform and environmental protection mechanism, guiding water depth. Further soil pollution and repair, strengthen agricultural non-point source pollution prevention, mountain, water, forests, fields, lakes, various elements mutual long

17、. Four, manage to tighten control, to play three to split battle. Xia Baolong, Secretary of provincial party Committee stressed that while the three to split operation time is over three years, but three to split must continue to catch on, and resolve a split cannot be changed. All localities and departments to the village and no unauthorised created