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1、[【大壩方案】大（一）型水電站大壩開挖工程施工方案] 目 目　 錄 1 施工總說明 .............................................................................................................. 1　1.1　XX水電站大壩左岸一期開挖工程施工的重點和難點 ......................................................... 1　1.2　針對本標重點和難點的施工對策 .....................................

2、........................................................ 2　2　概述 ......................................................................................................................... 5　2.1　說明 .........................................................................................................

3、....................................... 5　2.1.1 工程概況 ....................................................... 5　2. 1.2 水文氣象和工程地質(zhì) ............................................. 7　2.1.3 交通條件 ...................................................... 26　2.2　本合同承包人承包的工程項目和工作內(nèi)容 ................................

4、......................................... 27　2.2.1 工程施工的區(qū)域范圍 ............................................ 27　2.2.2 工程項目和工作內(nèi)容 ............................................ 27　2.2.3 合同項目主要工程量 ............................................ 28　2.2.4 合同項目總進度計劃 ............................................ 28

5、　3 施工總體布置 ........................................................................................................ 29　3.1　施工布置條件和原則 ................................................................................................................ 29　3.1.1 布置條件 .........................................

6、............. 29　3.1.2 布置原則 ...................................................... 29　3.2　場內(nèi)交通 ..................................................................................................................................... 29　3.2.1 發(fā)包人規(guī)劃布置施工主干道和左、右岸交通聯(lián)系設(shè)施 ................ 29　3.2.2 本標段新增施工道路和臨時

7、施工支洞 .............................. 30　3.3　施工場地防洪措施 .................................................................................................................... 30　3.4　施工供風、供水系統(tǒng)布置 ....................................................................................................... 31　3.4.1

8、 施工供風系統(tǒng) .................................................. 31　3.4.2 施工供水系統(tǒng) .................................................. 31　 3.5　施工供電及照明系統(tǒng)布置 ....................................................................................................... 33　3.5.1 施工供電 ....................................

9、.................. 33　3.5.2 施工照明 ...................................................... 34　3.5.3 防雷與接地 .................................................... 35　3.5.4 施工供電及照明主要設(shè)備及材料表 ................................ 35　3.6　施工通信 ..........................................................................

10、........................................................... 36　3.7　砂石料加工系統(tǒng) ......................................................................................................................... 37　3.7.1 系統(tǒng)生產(chǎn)任務(wù) .................................................. 37　3.7.2 砂石加工料源 ....................

11、.............................. 37　3.7.3 系統(tǒng)規(guī)模 ...................................................... 37　3.7.4 系統(tǒng)工藝設(shè)計 .................................................. 37　3.7.5 系統(tǒng)生產(chǎn)廢水處理 .............................................. 41　3.8　混凝土拌和系統(tǒng) .....................................................

12、.................................................................... 41　3.8.1 生產(chǎn)任務(wù) ...................................................... 41　3.8.2 生產(chǎn)規(guī)模和主要設(shè)備選型 ........................................ 41　3.8.3 系統(tǒng)布置和工藝流程 ............................................ 42　3.8.4 統(tǒng)生產(chǎn)廢水處理 ...................

13、............................. 44　3.9　其他生產(chǎn)輔助設(shè)施布置 ............................................................................................................ 44　3.9.1 鋼筋（錨索）加工廠、木材加工廠 ................................ 44　3.9.2 機修汽修廠及施工機械停放場 .................................... 45　3.9.3 工地試驗室 ..........

14、.......................................... 46　3.9.4 倉庫 .......................................................... 46　3.9.5 消防設(shè)施 ...................................................... 47　3.9.6 施工安全設(shè)施 .................................................. 47　3.9.7 環(huán)保設(shè)施 ....................................

15、.................. 47　3.9. 8 各種信號及報警設(shè)施設(shè)置 ........................................ 48　3.10　辦公、生活福利設(shè)施布置 ..................................................................................................... 48　 3.11　棄渣場規(guī)劃 .................................................................................

16、.............................................. 49　4 施工總進度 ............................................................................................................ 51　4.1　編制依據(jù) .........................................................................................................................

17、............ 51　4.2　編制原則 ..................................................................................................................................... 51　4.3　控制性工期 ................................................................................................................................

18、. 51　4.4　施工強度 ..................................................................................................................................... 51　4.5　施工進度保證措施 .................................................................................................................... 51　4.5.1 抓好初期進場、開工的

19、準備工作 .................................. 51　4.5.2 在施工方面保證 ................................................ 52　4.5.3 現(xiàn)場管理方面 .................................................. 52　4.5.4 做好技術(shù)革新、技術(shù)改造、方案優(yōu)化工作 .......................... 53　4.5.5 抓好后勤服務(wù)，形成支援系統(tǒng) .................................... 53　4.5.6 加強職

20、工思想教育，建立激勵機制 ................................ 53　5 施工期水流控制 .................................................................................................... 54　5.1　概況 ..................................................................................................................................

21、............ 54　5.2　安全度汛 ..................................................................................................................................... 54　5.2.1 度汛標準 ...................................................... 54　5.2.2 度汛技術(shù)措施 .................................................. 54　6

22、土石方工程 ............................................................................................................ 56　6.1　概述 .............................................................................................................................................. 56　6.2　施工特點 ....................

23、................................................................................................................. 57　6.3　施工規(guī)劃布置 ............................................................................................................................. 57　6.3.1 存、棄渣場地 ..............................

24、.................... 57　6.3.2 出渣道路 ...................................................... 58　6.3.3 風、水、電供應(yīng) ................................................ 58　6.3.4 其他場地布置 .................................................. 59　 6.3.5 排水設(shè)施 ...................................................... 59　6.4　

25、施工程序 ..................................................................................................................................... 59　6.4.1 明挖的分區(qū)分層 ................................................ 59　6.4.2 開挖施工程序 .................................................. 60　6.4.3 回填施工程序 ............

26、...................................... 60　6.4.4 灌漿平洞施工程序 .............................................. 60　6.5　施工方法 ..................................................................................................................................... 61　6.5.1 土方開挖施工 ..................................

27、................ 61　6.5.2 石方開挖施工 .................................................. 61　6.5.3 灌漿平洞開挖施工 .............................................. 62　6.5.4 棄渣場施工 .................................................... 65　6.6　鉆爆設(shè)計 .......................................................................

28、.............................................................. 65　6.6.1 土方開挖時的爆破 .............................................. 65　6.6.2 石方梯段爆破方案 .............................................. 66　6.6.3 預裂爆破方案 .................................................. 66　6.6.4 保護層開挖 .........................

29、........................... 66　6.6. 5 灌漿平洞開挖爆破方案 .......................................... 67　6.6.6 二次爆破方案 .................................................. 67　6.6.7 其他爆破 ...................................................... 68　6.7　地質(zhì)缺陷處理 ..........................................................

30、................................................................... 68　6.8　水土保持與防護 ......................................................................................................................... 68　6.9　土石方平衡調(diào)配 ................................................................................

31、......................................... 69　6.10　爆破實驗 ................................................................................................................................... 69　6.11　施工機械的選型與配套 ..............................................................................................

32、............ 71　6.12　施工質(zhì)量與安全 ...................................................................................................................... 71　6.12.1 質(zhì)量控制措施 ................................................. 71　6.12.2 安全措施 ..................................................... 72　 7 混凝土施工 ....

33、........................................................................................................ 74　7.1　工程范圍及工程量 .................................................................................................................... 74　7.2　混凝土配合比試驗及質(zhì)量控制 .........................................

34、...................................................... 74　7.2.1 建立現(xiàn)場試驗室 ................................................ 74　7.2.2 試驗檢驗的質(zhì)量保證 ............................................ 76　7.2.3 進場原材料質(zhì)量檢測 ............................................ 77　7.2.4 混凝土配合比設(shè)計及工藝試驗 ............................

35、........ 78　7.2.5 混凝土現(xiàn)場質(zhì)量檢測與控制 ...................................... 80　7.3　施工程序及進度計劃 ................................................................................................................ 81　7.4　馬道混凝土施工 .....................................................................................

36、.................................... 82　7.4.1 工程特性 ...................................................... 82　7.4.2 施工方法 ...................................................... 82　7.5　灌漿洞襯砌混凝土施工 ...........................................................................................................

37、. 82　7.5.1 工程特性 ...................................................... 82　7.5.2 施工方法 ...................................................... 83　7.6　回填混凝土澆筑 ......................................................................................................................... 85　7.6.1 工程特性 .........

38、............................................. 85　7.6.2 地質(zhì)缺陷處理混凝土施工 ........................................ 86　7.6.3 探洞回填混凝土施工 ............................................ 87　7.7　施工縫處理 ...................................................................................................................

39、.............. 88　7.7.1 工作縫處理 .................................................... 88　7.7.2 冷縫處理 ...................................................... 88　7.8　混凝土的養(yǎng)護和保護 ................................................................................................................ 89　7.8.1 養(yǎng)護 ......

40、.................................................... 89　7.8.2 保護 .......................................................... 89　7.9　混凝土外觀質(zhì)量保證措施 ....................................................................................................... 89　 7 7 .9.1 預防措施 ...................................

41、................... 89　7.9.2 補救措施 ...................................................... 90　7.10　主要設(shè)備配置 ........................................................................................................................... 91　7.11　混凝土施工質(zhì)量保證措施 ....................................................

42、................................................. 91　8 支護和排水孔工程 ............................................................................................... 97　8.1　概述 ..................................................................................................................................

43、............ 97　8.1.1 地質(zhì)情況 ...................................................... 97　8.1.2 施工項目及工程量 .............................................. 97　8.1.3 工程特點 ...................................................... 98　8.2　施工依據(jù) ........................................................................

44、............................................................. 99　8.3　施工組織及施工順序 ................................................................................................................ 99　8.3.1 施工組織 ...................................................... 99　8.3.2 施工程序和方法 ......................

45、.......................... 99　8.4　施工布置 ..................................................................................................................................... 99　8.4.1 施工用風、水、電 ............................................. 100　8.4.2 施工平臺 ................................................

46、..... 100　8.4.3 臨時制漿站 ................................................... 100　8.4.3 混凝土拌和運輸 ............................................... 100　8.4.5 廢水廢渣處理 ................................................. 101　8.5　巖石錨桿、錨樁施工 ...........................................................................

47、.................................. 101　8.5.1 施工工藝 ..................................................... 101　8.5.2 施工材料和設(shè)備 ............................................... 101　8.5.3 砂漿配合比 ................................................... 102　8.5.4 錨桿（樁）孔的鉆孔 ..........................................

48、. 102　8.5.5 普通錨桿（樁）安裝與注漿 ..................................... 103　8.5.6 預應(yīng)力錨桿施工 ............................................... 103　 8.5.7 自進式中空注漿錨桿施工 ....................................... 104　8.5.8 巖石錨桿（樁）的質(zhì)量檢驗 ..................................... 104　8.6　噴射混凝土施工 ...............................

49、....................................................................................... 104　8.6.1 施工原材料及混凝土配合比、混凝土運輸 ......................... 104　8 8 .6.2 噴射混凝土施工工藝 ........................................... 106　8.6.3 鋼筋網(wǎng)或機編鐵絲網(wǎng)噴射混凝土 ................................. 107　8.6.4 質(zhì)量檢查 ................

50、..................................... 107　8.7　預應(yīng)力錨索施工 ...................................................................................................................... 108　8.7.1 總則 ......................................................... 108　8.7.2 材料 ...........................................

51、.............. 108　8.7.3 施工工藝流程 ................................................. 108　8.7.4 鉆孔 ......................................................... 109　8.7.5 固結(jié)灌漿 ..................................................... 110　8.7.6 錨索制作與安裝 ............................................... 110　8.7.7 7

52、錨固段注漿 ................................................... 111　8.7.8 錨索的張拉 ................................................... 111　8.7.9 自由段回填灌漿 ............................................... 112　8.7.10 錨頭保護 .................................................... 112　8.7.11 質(zhì)量檢查 .......................

53、............................. 113　8.8　排水孔施工 ............................................................................................................................... 113　8.8.1 排水孔的布置 ................................................. 113　8.8.2 鉆孔 ................................................

54、......... 113　8.9　質(zhì)量控制 ................................................................................................................................... 114　8.10　完工驗收 ................................................................................................................................. 1

55、14　8.11　主要施工設(shè)備 ......................................................................................................................... 115　8.12　人員配置 ................................................................................................................................. 115　9 鉆孔與灌漿 .......

56、................................................................................................... 116　 9.1　施工范圍和工程量 .................................................................................................................. 116　9.2　施工程序 ......................................................

57、............................................................................. 116　9.3　灌漿材料和制漿 ....................................................................................................................... 116　9.3.1 灌漿材料 ..................................................... 116　9.3.2 制漿 ....

58、..................................................... 117　9.4　鉆孔 ............................................................................................................................................ 117　9.5　灌漿 ...................................................................................

59、......................................................... 118　9.6　質(zhì)量檢查和質(zhì)量控制 .............................................................................................................. 118　9.6.1 質(zhì)量檢查 ..................................................... 118　9.6.2 質(zhì)量控制 .............................

60、........................ 119　9.7　完工驗收 ................................................................................................................................... 119　9.8　主要施工設(shè)備 ...................................................................................................................

61、........ 119　10 工程安全監(jiān)測 .................................................................................................... 121　10.1　安全監(jiān)測概況 ........................................................................................................................ 121　10.2　安全監(jiān)測范圍和內(nèi)容 ....................

62、....................................................................................... 121　10.3　組織機構(gòu)及人員組成 ....................................................................................................... 122　10.4　現(xiàn)場臨建、交通及通訊布置 ...................................................................

63、...................... 122　10.5　施工技術(shù)方案組織設(shè)計 .................................................................................................. 122　10.5.1 安全監(jiān)測工作實施依據(jù) ........................................ 122　10.5.2 施工組織與計劃 .............................................. 123　10.5.3 監(jiān)測工作技術(shù)要求 .........

64、................................... 123　10.5.4 儀器設(shè)備驗收與檢驗 .......................................... 123　10.5.5 監(jiān)測儀器設(shè)備的埋設(shè)安裝 ...................................... 124　10.5.6 監(jiān)測儀器設(shè)施的維護 .......................................... 127　10.5.7 施工期觀測 .................................................. 127　10

65、.5.8 監(jiān)測資料的整理與信息反饋 .................................... 129　 10.6　質(zhì)量保證措施 ........................................................................................................................ 130　10.7　安全與文明生產(chǎn) ..........................................................................................

66、......................... 130　10.8　完工驗收及移交 ................................................................................................................... 131　11 主要施工設(shè)備表 ................................................................................................ 132　12 施工組織及人員配置計劃 .............................................................................. 135　12.1　施工組織機構(gòu) ...................................................................................................................