片石混凝土橋臺(tái)施工工藝

1、11總則..........................................................................................................................................11.1適用范圍......................................................................

2、........................................................11.2參考標(biāo)準(zhǔn)及規(guī)范..................................................................................................................22術(shù)語...................................

3、.......................................................................................................23基本規(guī)定...............................................................................................................

4、..........................24施工準(zhǔn)備.........................................................................................................................................24.1技術(shù)準(zhǔn)備...........................................

5、...................................................................................24.2材料準(zhǔn)備..............................................................................................................................34.

6、3主要施工機(jī)械......................................................................................................................34.4勞動(dòng)力組織......................................................................................

7、....................................44.5施工作業(yè)條件......................................................................................................................45質(zhì)量、技術(shù)要求...............................................

8、..............................................................................45.1材料要求..............................................................................................................................45.2技術(shù)要求

9、..............................................................................................................................45.3質(zhì)量要求......................................................................................

10、........................................45.4職業(yè)健康要求......................................................................................................................55.5環(huán)境要求............................................

11、..................................................................................56施工工藝....................................................................................................................................

12、.....56.1片石混凝土橋臺(tái)施工工藝流程（見下圖）......................................................................56.2施工操作方法.................................................................................................................

13、.....56.3施工中可能出現(xiàn)的情況和預(yù)防措施................................................................................137質(zhì)量標(biāo)準(zhǔn).............................................................................................................

14、..........................137.1片石混凝土橋臺(tái)質(zhì)量標(biāo)準(zhǔn)................................................................................................137.2質(zhì)量保證措施.......................................................................

15、.............................................148不利季節(jié)施工措施.......................................................................................................................158.1冬期施工措施..................................

16、..................................................................................158.2雨期施工措施....................................................................................................................158.3熱期施工措施

17、....................................................................................................................169成品保護(hù).................................................................................................

18、......................................1610安全、環(huán)保和文明施工措施.....................................................................................................1610.1安全措施.......................................................

19、...................................................................1610.2環(huán)境保護(hù)和文明施工措施..............................................................................................1711施工質(zhì)量記錄................................

20、.............................................................................................172水文地質(zhì)資料，根據(jù)現(xiàn)場施工條件合理安排人員、機(jī)械進(jìn)場，編制施工方案和進(jìn)度計(jì)劃。4.1.3組織高效精干、管理系統(tǒng)化、規(guī)范化的施工隊(duì)伍，選配強(qiáng)有力的指揮領(lǐng)導(dǎo)班子、技術(shù)業(yè)務(wù)人員和施工力量，強(qiáng)化施工隊(duì)伍的技術(shù)培訓(xùn)。4.1.4堅(jiān)持質(zhì)量第一的指導(dǎo)思想，建立工程

21、質(zhì)量終身制的全面質(zhì)量管理體制，堅(jiān)持安全第一，確保施工安全。4.2材料準(zhǔn)備4.2.1片石抗壓強(qiáng)度要求大于30MPa并不得低于混凝土級(jí)別，片石要求質(zhì)地堅(jiān)硬、密實(shí)、耐久、無裂紋、無風(fēng)化，在使用時(shí)要飽水洗凈，保證片石的清潔。4.2.2先根據(jù)片石混凝土數(shù)量，計(jì)算出片石的使用數(shù)量，填充片石的數(shù)量不宜超混凝土體積的20%，片石的厚度不得小于為150mm～300mm（卵形和薄片不得使用）。4.2.3混凝土所用水泥、砂、石料、水、外加劑均應(yīng)符合規(guī)范要求，

22、并按規(guī)定頻率進(jìn)行檢驗(yàn)，嚴(yán)格按照施工配合比施工，嚴(yán)格控制混凝土的坍落度?；炷敛捎冒韬驼景柚?，嚴(yán)格控制攪拌時(shí)間，用混凝土運(yùn)輸車運(yùn)輸混凝土。4.3主要施工機(jī)械4.3.1主要施工機(jī)械見下表：機(jī)械設(shè)備表：序進(jìn)場數(shù)號(hào)設(shè)備名稱規(guī)格型號(hào)量(臺(tái))性能狀況備注1挖掘機(jī)R220LC51良好整理、整平場地2吊車QY25V1良好吊裝模板3發(fā)電機(jī)HLGF1501良好備用發(fā)電4振動(dòng)器ZN504良好振搗混凝土6電焊機(jī)BX15002良好焊接臺(tái)帽鋼筋7鋼筋彎曲機(jī)GF20