中建中建基坑工程施工方案范本

項目專項施工方案

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基坑工程施工方案

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2023年6月1日

項目專項施工方案

目錄

一、編制依據(jù)...................................................................................................................................1

1.1主要規(guī)范規(guī)程.....................................................................................................................1

1.2主要圖集.............................................................................................................................2

1.3主要法律法規(guī).....................................................................................................................2

1.4圖紙、施工組織設計及其他資料.....................................................................................2

二、工程概況...................................................................................................................................3

2.1工程基本情況.....................................................................................................................3

2.2工程地質(zhì)情況.....................................................................................................................3

2.2.1地形地貌..................................................................................................................3

2.2.2地層巖性..................................................................................................................4

2.2.3不良地質(zhì)作用和地質(zhì)災害......................................................................................5

2.2.4特殊性巖土..............................................................................................................5

2.3工程水文情況.....................................................................................................................6

2.3.1地表水......................................................................................................................6

2.3.2地下水......................................................................................................................6

2.3.3地層滲透性與地下水補給排泄..............................................................................6

2.4基坑支護設計概況.............................................................................................................7

三、施工部署...................................................................................................................................8

3.1工程總體目標......................................................................................................................8

質(zhì)量管理目標....................................................................................................................8

安全管理目標....................................................................................................................8

工期管理目標....................................................................................................................8

文明施工和環(huán)境保護目標................................................................................................8

3.2工程管理機構(gòu)設置及職責..................................................................................................8

組織架構(gòu)設置....................................................................................................................8

項目職能機構(gòu)及其職責....................................................................................................9

3.3施工籌劃...........................................................................................................................12

總體安排..........................................................................................................................12

施工流水段劃分..............................................................................................................12

施工總體順序.................................................................................錯誤！未定義書簽。

3.5施工進度計劃....................................................................................................................13

施工階段工期目標控制計劃..........................................................................................22

3.5.2實現(xiàn)工期目標技術(shù)措施........................................................................................23

3.6資源配置計劃...................................................................................................................26

主要勞動力計劃..............................................................................................................26

主要周轉(zhuǎn)材料投入計劃..................................................................................................27

主要機械配置計劃..........................................................................................................27

四、地下連續(xù)墻施工方案.............................................................................................................29

4.1地下連續(xù)墻設計...............................................................................................................29

4.2主要施工工藝與流程........................................................................................................31

4.2.1整體施工部署........................................................................................................32

導墻施工..........................................................................................................................32

4.2.3泥漿制備................................................................................................................33

項目專項施工方案

地連墻成槽施工..............................................................................................................35

清基及接頭處理..............................................................................................................39

4.2.6鋼筋籠的制作與吊放............................................................................................39

4.2.7連續(xù)墻混凝土澆筑................................................................................................46

4.3基坑排水...........................................................................................錯誤！未定義書簽。

4.3.1基坑內(nèi)排水措施...................................................................錯誤！未定義書簽。

4.3.2基坑外排水措施...................................................................錯誤！未定義書簽。

4.4成墻質(zhì)量及常見問題處理................................................................................................48

成墻質(zhì)量檢測..................................................................................................................48

常見問題及解決方法......................................................................................................49

4.5安全控制及質(zhì)量控制措施................................................................................................52

4.5.1地下連續(xù)墻施工安全措施....................................................................................52

4.5.2地下連續(xù)墻質(zhì)量保證措施....................................................................................53

4.5.3大型施工機械安全防護措施................................................................................55

五、高壓旋噴樁施工方案.............................................................................................................56

5.1單管高壓旋噴樁工程概況................................................................................................56

5.2施工部署............................................................................................................................57

5.2.1施工計劃................................................................................................................57

5.2.2施工平面部署........................................................................................................57

臨電布置..........................................................................................................................58

5.3施工準備............................................................................................................................58

勞動力準備......................................................................................................................58

施工機械準備..................................................................................................................59

材料準備..........................................................................................................................59

5.4施工工藝............................................................................................................................59

單管高壓旋噴樁工藝......................................................................................................59

施工工藝流程..................................................................................................................60

施工工藝要點..................................................................................................................61

常見問題及預防、處理措施..........................................................................................61

5.5質(zhì)量控制措施....................................................................................................................62

施工質(zhì)量控制要點..........................................................................................................62

質(zhì)量檢驗內(nèi)容及方法......................................................................................................63

旋噴樁工程質(zhì)量控制標準..............................................................................................63

六、立柱樁施工方案.....................................................................................................................65

6.1立柱樁設計概況................................................................................................................65

6.2施工部署............................................................................................................................66

6.2.1施工組織................................................................................................................66

6.2.2施工平面布置........................................................................................................66

6.2.3施工進度計劃........................................................................................................66

6.2.4施工準備................................................................................................................66

6.3立柱樁施工........................................................................................................................72

6.3.1施工流程................................................................................................................72

6.3.2鉆機鉆孔................................................................................................................72

6.3.3清孔........................................................................................................................72

項目專項施工方案

6.3.4成孔檢驗................................................................................................................72

6.3.5鋼筋籠及格構(gòu)柱吊裝............................................................................................73

6.3.6水下混凝土灌注....................................................................................................75

6.3.7水下混凝土灌注事故預防方法............................................................................76

6.3.8水下混凝土灌注事故處理方法............................................................................76

6.4質(zhì)量保證措施....................................................................................................................77

6.4.1管理目標................................................................................................................77

6.4.2質(zhì)量保證措施........................................................................................................77

6.4.3技術(shù)保證措施........................................................................................................78

七、土方開挖及內(nèi)支撐施工方案.................................................................................................78

7.1內(nèi)支撐設計概況...............................................................................................................78

7.2施工部署............................................................................................................................83

施工總體安排..................................................................................................................83

7.2.2施工現(xiàn)場平面布置................................................................................................84

7.2.3總體施工流程........................................................................................................86

7.3土方開挖施工方案............................................................................................................87

7.3.1土方施工概況........................................................................................................87

7.3.2土方施工原則........................................................................................................87

7.3.3測量放線................................................................................................................88

7.3.4土方開挖流程........................................................................................................88

7.4內(nèi)支撐施工方案................................................................................................................97

7.4.1鋼筋施工................................................................................................................97

7.4.2模板施工................................................................................................................97

7.4.3混凝土施工............................................................................................................99

八、安全防護施工措施...............................................................................................................100

8.1安全防護施工組織制度.................................................................................................100

8.1.1安全管理目標......................................................................................................100

8.1.2安全管理體系......................................................................................................100

8.1.3安全管理組織......................................................................................................101

8.1.4安全管理制度......................................................................................................101

8.2基坑安全施工控制措施.................................................................................................101

8.2.1安全防護措施......................................................................................................101

8.2.2安全行為控制......................................................................................................102

8.2.3勞動用工安全管理措施......................................................................................102

8.2.4臨時用電安全管理措施......................................................................................102

九、文明施工與環(huán)境保護措施...................................................................................................103

9.1文明施工管理目標.........................................................................................................103

9.2文明施工組織保證.........................................................................................................104

9.3文明施工保證體系.........................................................................................................104

9.4文明施工工作制度.........................................................................................................104

9.5文明施工管理措施.........................................................................................................104

9.6降低環(huán)境污染的技術(shù)措施.............................................................................................105

9.6.1防止大氣污染......................................................................................................105

9.6.2防止水污染..........................................................................................................105

項目專項施工方案

9.6.3防止施工噪音污染..............................................................................................105

9.6.4對可回收的廢棄物做到再回收利用..................................................................105

十、基坑監(jiān)測及周邊管線、地鐵保護.......................................................................................106

10.1基坑監(jiān)測.......................................................................................................................106

10.1.1監(jiān)測目的............................................................................................................106

10.1.2監(jiān)測內(nèi)容............................................................................................................106

10.1.3巡視檢查............................................................................................................108

10.2地鐵監(jiān)測.......................................................................................................................109

10.2.1監(jiān)測目的............................................................................................................109

10.2.2監(jiān)測內(nèi)容及范圍................................................................................................109

10.2.3監(jiān)測頻率及控制指標........................................................................................110

10.3周邊管線保護...............................................................................................................111

10.3.1組織架構(gòu)............................................................................................................111

10.3.2管線保護巡查....................................................................................................111

10.3.3相關(guān)單位聯(lián)系電話............................................................................................112

10.3.4管線保護措施及危險預警................................................................................112

10.3.5管線損壞應急預案............................................................................................114

10.4地鐵保護.......................................................................................................................115

10.4.1基坑支護設計保護措施....................................................................................115

10.4.2基坑施工保護措施............................................................................................116

10.4.3監(jiān)測保護............................................................................................................117

10.4.4協(xié)調(diào)與應急預案................................................................................................117

十一、應急救援預案...................................................................................................................118

11.1基坑風險分析...............................................................................................................118

11.1.1基坑風險事件及后果........................................................................................118

11.1.2基坑風險特點....................................................................................................119

11.1.3重大危險源分析及控制措施............................................................................120

11.1.4基坑工程主要險情控制....................................................................................120

11.2基坑工程險情預防保護措施.......................................................................................121

11.2.1預防基本原則....................................................................................................121

11.2.2預防及保護措施................................................................................................122

11.3監(jiān)測和信息反饋...........................................................................................................123

11.4應急機制.......................................................................................................................124

11.4.1應急領導小組....................................................................................................124

11.4.2應急救援小組....................................................................................................124

11.5應急救援隊伍...............................................................................................................126

11.5.1應急機制小組責任期限....................................................................................126

11.5.2應急機制激活時間............................................................................................126

11.6應急機制總體流程及要求...........................................................................................126

11.6.1應急聯(lián)動機制....................................................................................................127

11.6.2應急制度、預案和宣傳培訓............................................................................127

11.6.3應急材料、設備準備........................................................................................127

11.6.4應急救援路線....................................................................................................128

11.7事故應急措施...............................................................................................................129

項目專項施工方案

11.7.1地連墻施工應急措施........................................................................................129

11.7.2立柱樁施工應急措施........................................................................................132

11.7.3高壓旋噴樁施工應急措施................................................................................134

11.7.4周邊地下管線漏水............................................................................................135

11.7.5局部坍塌............................................................................................................135

11.7.6地表裂縫............................................................................................................135

11.7.7基坑突涌............................................................................................................136

11.7.8基坑周邊沉降過大............................................................................................136

11.7.9支護結(jié)構(gòu)失穩(wěn)....................................................................................................136

11.7.10地下水位突變..................................................................................................137

11.8應急演練和應急預案的評價修改...............................................................................137

11.8.1應急演練............................................................................................................137

11.8.2應急預案的評價修改........................................................................................137

11.9應急預案的啟動...........................................................................................................137

11.9.1各應急小組工作................................................................................................137

11.9.2事故控制后........................................................................................................138

11.9.3事故情況簡報及應急評估................................................................................139

項目專項施工方案

一、編制依據(jù)

1.1主要規(guī)范規(guī)程

序號名稱編號類別

1建筑工程施工質(zhì)量驗收統(tǒng)一標準GB/T50300-2013國家

2建筑地基基礎設計規(guī)范GB50007-2011國家

3混凝土結(jié)構(gòu)設計規(guī)范GB50010-2010國家

4混凝土結(jié)構(gòu)工程施工質(zhì)量驗收規(guī)范GB50204-2015國家

5建筑地基基礎工程施工規(guī)范GB51004-2015國家

6建筑地基基礎工程施工質(zhì)量驗收規(guī)范GB50202-2002國家

7建筑結(jié)構(gòu)荷載規(guī)范GB50009-2012國家

8工程測量規(guī)范GB50026-2007國家

9建筑基坑工程監(jiān)測技術(shù)規(guī)范GB50497-2009國家

10建筑邊坡工程技術(shù)規(guī)范GB50330-2013國家

11建筑施工安全技術(shù)統(tǒng)一規(guī)范GB50870-2013國家

12地下工程防水技術(shù)規(guī)范GB50108-2008國家

13建筑施工起重吊裝工程安全技術(shù)規(guī)范JGJ276-2012行業(yè)

14建筑基坑支護技術(shù)規(guī)程JGJ120-2012行業(yè)

15鋼筋機械連接通用規(guī)程JGJ107-2016行業(yè)

16鋼筋焊接及驗收規(guī)程JGJ18-2012行業(yè)

17建筑機械使用安全技術(shù)規(guī)程JGJ33-2012行業(yè)

18施工現(xiàn)場臨時用電安全技術(shù)規(guī)程JGJ46-2005行業(yè)

19建筑施工安全檢查標準JGJ59-2011行業(yè)

20建筑樁基技術(shù)規(guī)范JGJ94-2008行業(yè)

21建筑地基基礎設計規(guī)范DBJ15-31-2003地方

22建筑結(jié)構(gòu)荷載規(guī)范DBJ15-101-2014地方

23SJG05-2011地方

24SJG01-2010地方

25SJG19-2010地方

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項目專項施工方案

1.2主要圖集

序號名稱編號

1混凝土結(jié)構(gòu)施工圖平面整體表示方法制圖規(guī)則和構(gòu)造詳圖16G101

2地下建筑防水構(gòu)造10J301

3建筑基坑支護結(jié)構(gòu)構(gòu)造11SG814

1.3主要法律法規(guī)

序號名稱編號

1建設工程質(zhì)量管理條例國務院第279號令

2建筑安全生產(chǎn)監(jiān)督管理規(guī)定建設部令第13號

3建設工程施工現(xiàn)場管理規(guī)定