中建深基坑專項方案

項目專項施工方案

金臣頤墅項目(東區(qū))總承包工程項目

深基坑專項施工方案

編制單位：中建八局第一建設有限公司

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項目專項施工方案

目錄5.3.7生產(chǎn)設施布置.............................................................................................................................-28-

第一章編制依據(jù)...................................................................................................................................................-1-第六章施工方法及工藝要求.............................................................................................................................-30-

1.1方案編制說明..........................................................................................................................................-1-6.1測量放線施工方案................................................................................................................................-30-

1.2編制依據(jù)..................................................................................................................................................-1-6.1.1建立平面總控制網(wǎng).......................................................................................................................-30-

1.2.1規(guī)范及標準...................................................................................................................................-1-6.1.2沉降測量.......................................................................................................................................-32-

1.3編制原則..................................................................................................................................................-1-6.1.3基坑監(jiān)測.......................................................................................................................................-32-

第二章工程概況...................................................................................................................................................-2-6.2三軸攪拌樁施工方案............................................................................................................................-33-

2.1工程建設概況..........................................................................................................................................-2-6.2.1三軸攪拌樁設計概況...................................................................................................................-33-

2.2設計概況..................................................................................................................................................-2-6.2.2三軸攪拌樁施工分區(qū)及施工總體安排.......................................................................................-34-

2.2.1地下工程設計概況.......................................................................................................................-2-6.2.3三軸攪拌樁加固施工流程...........................................................................................................-34-

2.2.2樁基設計概況...............................................................................................................................-2-6.2.4三軸攪拌加固施工工藝...............................................................................................................-35-

2.2.3圍護設計概況...............................................................................................................................-3-6.2.5測量放線.......................................................................................................................................-35-

2.2.4護坡設計概況.............................................................................................................................-16-6.2.6開挖溝槽.......................................................................................................................................-35-

2.2.5基坑降水設計概況.....................................................................................................................-16-6.2.7三軸攪拌樁施工方法及技術(shù)要求...............................................................................................-36-

2.3工程施工條件........................................................................................................................................-16-6.2.8三軸攪拌加固施工質(zhì)量保證措施...............................................................................................-36-

2.3.1現(xiàn)場環(huán)境特征.............................................................................................................................-16-6.2.9三軸攪拌樁異常情況處理...........................................................................................................-37-

2.3.2現(xiàn)場施工條件.............................................................................................................................-17-6.3雙軸攪拌樁施工方案............................................................................................................................-37-

2.4樁機圍護工程量統(tǒng)計............................................................................................................................-19-6.3.1雙軸攪拌樁設計概況...................................................................................................................-37-

第三章施工安排.................................................................................................................................................-20-6.3.2雙軸攪拌加固施工工藝...............................................................................................................-38-

3.1項目管理組織........................................................................................................................................-20-6.3.3雙軸攪拌樁施工方法及技術(shù)要求...............................................................................................-39-

3.1.1項目組織機構(gòu).............................................................................................................................-20-6.3.4出現(xiàn)問題及預防措施和處理方法...............................................................................................-39-

3.1.2項目組織機構(gòu)管理職責.............................................................................................................-20-6.4長螺旋取土壓灌混凝土后插鋼筋籠施工方案......................................................................................-40-

3.2項目管理目標........................................................................................................................................-21-概述.......................................................................................................................................................-40-

3.3各項資源供應方式................................................................................................................................-21-6.4.2施工準備工作................................................................................................................................-40-

3.3.1勞務資源安排一覽表.................................................................................................................-21-長螺旋取土壓灌混凝土后插鋼筋籠混凝土樁施工流程.....................................................................-40-

3.4基坑施工思路........................................................................................................................................-21-測量定位...............................................................................................................................................-42-

3.5工程施工重點和難點分析及應對措施................................................................................................-22-樁機安裝就位.......................................................................................................................................-42-

第四章施工進度計劃.........................................................................................................................................-24-成孔鉆進...............................................................................................................................................-42-

4.1施工進度計劃..........................................................................................................................................-24-施工砼配制與技術(shù)質(zhì)量要求...............................................................................................................-42-

4.2進度計劃保障措施..................................................................................................................................-24-6.4.8壓灌混凝土...................................................................................................................................-42-

第五章施工準備與資源配置計劃.....................................................................................................................-25-鋼筋籠的制作與技術(shù)要求...................................................................................................................-43-

5.1施工準備計劃........................................................................................................................................-25-6.4.10鋼筋籠的安放.............................................................................................................................-43-

技術(shù)準備.............................................................................................................................................-25-6.5立柱樁施工方案....................................................................................................................................-44-

5.1.2現(xiàn)場準備.....................................................................................................................................-25-6.5.1概述...............................................................................................................................................-44-

5.2資源配置計劃........................................................................................................................................-25-6.5.2施工流水安排...............................................................................................................................-44-

勞動力配置計劃.................................................................................................................................-25-6.5.3施工工藝流程...............................................................................................................................-44-

5.2.2施工機具配置計劃.....................................................................................................................-25-6.5.4試成孔施工...................................................................................................................................-45-

5.2.3測量計量儀器配置計劃.............................................................................................................-26-6.5.5施工方法和技術(shù)要求...................................................................................................................-45-

5.3現(xiàn)場布置................................................................................................................................................-26-6.5.6格構(gòu)柱制作...................................................................................................................................-48-

5.3.1平面布置原則...............................................................................................................................-26-6.5.7出現(xiàn)問題及預防措施和處理方法...............................................................................................-50-

5.3.2布置依據(jù).......................................................................................................................................-26-6.6壓密注漿施工方案................................................................................................................................-51-

5.3.3生活設施布置...............................................................................................................................-27-6.6.1壓密注漿原理................................................................................................................................-51-

5.3.4辦公設施布置...............................................................................................................................-27-6.6.2施工參數(shù)........................................................................................................................................-51-

現(xiàn)場施工平面布置.............................................................................................................................-27-6.6.3壓密注漿施工工藝........................................................................................................................-51-

5.3.6現(xiàn)場水電平面布置.....................................................................................................................-28-6.6.4施工方法........................................................................................................................................-51-

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項目專項施工方案

6.7降水工程施工方案................................................................................................................................-52-6.13.1斜支撐概況................................................................................................................................-88-

6.7.1地質(zhì)條件.....................................................................................................................................-52-6.13.2施工準備....................................................................................................................................-88-

6.7.2方案設計.....................................................................................................................................-52-6.13.3鋼支撐安裝.................................................................................................................................-88-

真空疏干井施工工藝.........................................................................................................................-55-6.13.4鋼支撐拆撐.............................................................................................................................-89-

疏干井降水運行.................................................................................................................................-56-6.14換撐及支撐拆除施工方案....................................................................................................................-90-

封井.....................................................................................................................................................-57-6.14.1換撐施工.....................................................................................................................................-90-

6.7.6附圖...............................................................................................................................................-57-6.14.2水平支撐拆除方案.....................................................................................................................-90-

6.8混凝土冠梁及水平支撐施工方案..........................................................................................................-57-6.14.3成品保護措施.............................................................................................................................-92-

6.8.1冠梁與水平支撐施工總體順序....................................................................................................-58-6.15外墻回填施工方案................................................................................................................................-93-

6.8.2測量放樣.......................................................................................................................................-58-6.15.1設計概況.....................................................................................................................................-93-

6.8.3冠梁及水平支撐模板工程...........................................................................................................-58-6.15.2工程施工條件.............................................................................................................................-93-

6.8.4冠梁及水平支撐鋼筋工程...........................................................................................................-58-6.15.3施工方法.....................................................................................................................................-93-

6.8.5冠梁及水平支撐混凝土工程.......................................................................................................-58-6.16地下連通道施工專項方案..................................................................................................................-93-

6.9土方開挖方案........................................................................................................................................-58-6.16.1地下通道概況.............................................................................................................................-93-

6.9.1正式開挖施工條件.......................................................................................................................-59-6.16.2地下通道施工方案.....................................................................................................................-94-

6.9.2土方開挖工況要求及開挖流程...................................................................................................-59-6.17季節(jié)性施工方案..................................................................................................................................-98-

6.9.3土方運輸路線...............................................................................................................................-61-6.17.1雨季施工的基本原則和準備工作...........................................................................................-98-

6.9.4土方開挖施工順序.......................................................................................................................-61-6.17.2防汛防臺施工方案...................................................................................................................-98-

6.9.5土方開挖施工要點.......................................................................................................................-71-6.17.3防暑降溫應急預案...................................................................................................................-98-

6.9.6土方開挖質(zhì)量控制措施及成品保護措施...................................................................................-71-第七章各項管理計劃.......................................................................................................................................-100-

6.10基坑監(jiān)測方案........................................................................................................................................-72-7.1進度管理計劃........................................................................................................................................-100-

6.10.1工程監(jiān)測等級.............................................................................................................................-72-7.1.1施工進度管理組織機構(gòu)...........................................................................................................-100-

6.10.2監(jiān)測目的與技術(shù)要求.................................................................................................................-72-7.1.2進度管理措施...........................................................................................................................-100-

6.10.3設計基本原則.............................................................................................................................-72-7.2質(zhì)量管理計劃........................................................................................................................................-102-

6.10.4工程重、難點分析及應對措施.................................................................................................-73-質(zhì)量保證體系.....................................................................................................................................-102-

6.10.5監(jiān)測項目內(nèi)容.............................................................................................................................-74-7.2.2質(zhì)量保證措施.............................................................................................................................-102-

6.10.6測試方法原理.............................................................................................................................-74-7.3安全管理計劃......................................................................................................................................-106-

6.10.7監(jiān)測工作布置.............................................................................................................................-78-施工安全保證措施.............................................................................................................................-106-

6.10.8監(jiān)測工作程序與流程.................................................................................................................-79-用電安全管理.....................................................................................................................................-107-

6.10.9資料整理、提交.........................................................................................................................-81-7.3.3施工消防管理.............................................................................................................................-107-

6.10.10報警指標...................................................................................................................................-82-7.3.4現(xiàn)場文明施工措施.....................................................................................................................-109-

6.10.11監(jiān)測儀器配備...........................................................................................................................-82-7.3.5場容控制措施.............................................................................................................................-109-

6.10.12特殊情況的處理.......................................................................................................................-82-7.3.6現(xiàn)場總平面管理.........................................................................................................................-110-

6.10.13應對風險的監(jiān)測保證措施.......................................................................................................-82-7.3.7人員管理措施.............................................................................................................................-110-

6.10.14附圖...........................................................................................................................................-82-7.3.8現(xiàn)場保安.....................................................................................................................................-110-

6.11混凝土護坡施工方案............................................................................................................................-82-7.4環(huán)境管理計劃......................................................................................................................................-111-

6.11.1噴射混凝土護坡技術(shù)要求.........................................................................................................-82-7.4.1環(huán)境管理目標...........................................................................................................................-111-

6.11.2放坡技術(shù)要求.............................................................................................................................-83-7.4.2環(huán)境管理組織機構(gòu)和職責分工...............................................................................................-111-

6.11.3施工方法.....................................................................................................................................-83-7.4.3重大環(huán)境因素清單...................................................................................................................-111-

6.12基礎底板施工方案..............................................................................................................................-83-7.4.4環(huán)境保護資源配置計劃...........................................................................................................-111-

6.12.1基礎底板概況...........................................................................................................................-83-7.4.5環(huán)境保護措施...........................................................................................................................-111-

6.12.2基礎底板施工總體安排...........................................................................................................-83-7.4.6揚塵治理...................................................................................................................................-112-

6.12.3基礎底板施工工藝流程...........................................................................................................-87-7.5綠色施工管理計劃..............................................................................................................................-115-

6.12.4底板施工技術(shù)措施...................................................................................................................-87-7.5.1綠色施工培訓...........................................................................................................................-115-

6.13鋼管斜撐施工方案................................................................................................................................-88-7.5.2綠色施工組織機構(gòu)和職責分工...............................................................................................-115-

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項目專項施工方案