【正文】 ．挖孔及挖孔擴底樁常遇問題及預防、處理方法 ...........................................................10 .......................................................................................................10 ............................................................................................................................ 11 .............................................................................................................. 11 ...................................................................................................12 、處理方法 ...........................................................................13 .......................................................................................................14 第三章 混凝土工程 ..............................................................................................................15 ...................................................................................................15 ．原材料準備 ...............................................................................................................15 混凝土的澆筑和養(yǎng)護 .....................................................................................................15 ．主要機具準備 ............................................................................................................15 ．施工工藝 ...................................................................................................................15 ．混凝土澆筑與振搗的一般要求 ...................................................................................15 ．柱、墻（剪力墻、電梯井）混凝土澆筑 .....................................................................16 ．樓梯混凝土澆筑 ........................................................................................................16 ．梁、板混凝土澆筑 .....................................................................................................16 ．施工縫的處理 ............................................................................................................16 ．混凝土的養(yǎng)護 ............................................................................................................17 ．質量標準 ...................................................................................................................17 ．外觀質量 .................................................................................................................17 ．尺寸偏差 .................................................................................................................18 3．應注意的質量問題 ........................................................................................................19 ．墻 體、柱爛根： ........................................................................................................19 ．蜂窩： .......................................................................................................................19 ．露筋： .......................................................................................................................19 ．麻面： .......................................................................................................................19 ．孔洞： .......................................................................................................................20 ．縫隙與夾渣層 ............................................................................................................20 ．混凝土裂縫 ...............................................................................................................20 施工縫、后澆帶的設置 .................................................................................................21 ．施工縫的留設位置 .....................................................................................................21 ．施工縫的處理 ............................................................................................................21 ．處理施工縫在施工過程中出現(xiàn)問題的措施 ..................................................................21 ．后澆帶的設置 ............................................................................................................21 施工技術培訓資料 2 ..........................................................................................................22 ．材料 ..........................................................................................................................22 ．施工要點 ...................................................................................................................22 ..........................................................................................................23 ．混凝土試件制作規(guī)定 .................................................................................................24 ．混凝土試件制作方法 .................................................................................................24 ．混凝土試件的養(yǎng)護方法 ..............................................................................................24 7．主要安全技術措施 ........................................................................................................24 第四章 鋼筋工程 .................................................................................................................25 1. 材料的要求 .................................................................................................................25 . 鋼筋 ........................................................................................................................25 . 成型鋼筋： ..............................................................................................................25 . 鐵絲： .....................................................................................................................25 2. 鋼筋的加工制作 ．鋼筋調直 ...................................................................................25 3. 鋼筋的連接 .....................................................................................................