某建筑工程一期工程塔吊施工專項方案(多塔吊).doc
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目 錄
一、 工程概況
二、 塔吊的基礎設計
三、 塔吊基礎承載力驗算
四、 塔吊安裝
五、 安裝注意事項
六、 附墻件安裝
七、 塔吊的操作使用
八、 維護與保養
九、 塔吊的拆除及安全措施
十、 塔吊的沉降、垂直度測定及偏差較正
十一、附圖
塔 吊 施 工 方 案
一、工程概況
********一期工程，位于****市東部**城，北側為已建的6號渠，東側為27號大街，西側為一條規劃道路。是由*******開發公司投資興建，*******設計研究院設計，*******建設公司承建，*******監理公司監理，*******勘察研究院勘察，地下室基坑圍護設計方案由*******勘察研究院設計。我公司承建的**標段，包括1＃、2＃、3＃、8＃、10＃、11＃、12＃、13＃樓，其中1～3＃樓為28～32層，高度98.2米；8＃、10＃樓14～18層，高度約為55米，11～13＃樓為28層，高度約為82米，地下室一層。整個工程在施工中垂直運輸工作量很大，材料的運輸周轉也很大，項目部結合建筑物的高度、結構特點、施工現場環境，綜合考慮工期、吊運能力、機械類型等因素，合理安排機械數量和布置位置，計劃安排塔吊共計7臺：在1＃樓的北側1－34/1－N（位于地庫內）安裝一臺QTZ60塔吊；2＃樓2－10/2－H（位于地庫處）安裝一臺QTZ60塔吊；3＃樓3－32/3-N(地庫內)安裝一臺QTZ60塔吊；8＃樓8－26/8－R（位于地庫內）考慮安裝一臺QTZ315塔吊；10＃樓10－26/10－A（位于地庫內）考慮安裝一臺QTZ60塔吊；11＃樓安裝一臺QTZ60塔吊，13＃樓13－15/13－P（地庫外）安裝一臺QTZ60塔吊，13#樓塔吊兼顧12#樓。
二、塔吊的基礎設計
1、地質情況分析
根據*********勘察研究院地質勘察資料，其土層分布依次如下，1-1素填土，1-2回填土，2-1粉土，2-2粉土，2-3粉砂、夾粉砂，2-4粉砂，4-1粉土，4-2粉土夾淤泥質粉質粘土，5淤泥質粉質粘土，6-1粉質粘土，6-2含砂粉質粘土，6-3粉細砂。從本工程的土質情況、土方開挖后承臺的支撐以及對邊坡支護影響等因素考慮，塔吊采用承臺基礎，承臺下為鉆孔灌注樁支撐，以確保塔吊基礎的穩定性，基礎承載力滿足使用要求。鉆孔灌注樁的深度根據土層情況，考慮在40～45米之間，直徑800，根據承臺尺寸，承臺下布置四根樁，四角分別布置，樁中心點距離為3000mm。
2、承臺基礎和墊層設計
根據地質情況分析，結合廠家提供的基礎施工要求，承臺選用4820 mm×4820mm×1250mm(長×寬×高)，混凝土強度不低于C30要求，基礎承臺采用C30鋼筋砼內配Ф20﹫183雙層雙向,縱、橫方向每隔2根主筋設一根Ф20拉筋。根據土質情況，地庫外的塔吊基礎承臺下設100厚C15素混凝土墊層和300厚塊石墊層。
3、樁基礎設計
樁基礎采用樁徑為Ø800mm鉆孔灌注樁，位于地庫外的塔吊樁樁長40米，樁頂標高－2.00米，樁底標高－42.00米，樁頂嵌入承臺100mm，樁身配筋情況：主筋8Φ20，籠長L=30.70米，螺旋箍Ø8@200，樁頂2米加密Ø8@100，
CONTENTS
First, project survey
Second, the basic design of tower crane
3, Crane Foundation Bearing Capacity
4, Tower Crane Installation
V. Installation Notes
6, with a wall piece installation
7, the operation of tower crane use
VIII, Maintenance
9, and the removal of tower crane safety
10, Crane's settlement, the vertical degree of determination and a more positive bias
11, photo
Tower crane work plan was implemented
First, project survey
******** 1 project, located in the eastern city **** ** City, the north side of the channel has been built on the 6th, east to the 27th Avenue, west side of the road to a plan. By ******* Development Company to construct ,******* Design Institute designed the construction of ,******* ,******* Construction Company Project Management Company Supervision, ** ***** Survey Institute survey, basement foundation pit design survey by the Institute of Design *******. ** Our construction of sections, including the 1 #, 2 #, 3 #, 8 #, 10 #, 11 #, 12 #, 13 # Building, 1 ~ 3 # F, 28 ~ 32 layers, height of 98.2 m ; 8 #, 10 # Building 14 ~ 18 layers, height of about 55 meters, 11 ~ 13 # F 28 layer is about 82 meters high, the basement floor. The whole project is the construction of vertical transportation in a lot of work, materials, transport turnover is also a great project combining the Department of the height of buildings, structures, construction site environment, considering the period, lifting capacity, machine type and other factors, reasonable arrangements the number and locations of machines, scheduling a total of 7 sets of tower crane: 1 # Building in the north 1-34/1-N (located in the basement) the installation of a tower crane QTZ60; 2 # F 2-10/2-H ( located in the basement office) the installation of a tower crane QTZ60; 3 # F 3-32/3-N (basement) the installation of a tower crane QTZ60; 8 # F 8-26/8-R (located in the basement) to consider installing a QTZ315 tower crane; 10 # F 10-26/10-A (located in the basement) to consider the installation of a tower crane QTZ60; 11 # Building installation of a tower crane QTZ60, 13 # Building 13-15/13-P (in the basement outside) the installation of a tower crane QTZ60, 13 # 12 # F, F, Tower Crane into account.
Second, the basic design of tower crane
1, Geological Analysis
Institute of Geological Survey under ********* survey data, the soil layer in turn as follows, 1-1, 1-2 Filled backfill ,2-1 ,2-2 silt silt, 2 -3 silt, silt folder silt ,2-4 ,4-1 ,4-2 silt silt silt folder clay, silty clay 5 ,6-1 ,6-2 silty clay silty sand fine sand, 6-3. Soil conditions from this project, earthwork excavation pile support and the impact of factors such as slope protection considerations, tower crane with pile foundation, pile cap support for the bored pile to ensure the stability of Tower Crane Foundation, the basis of capacity to meet the requirements. Bored depth according to soil conditions, consider 40 to 45 meters in diameter and 800, according to cap size, pile cap arrangement of four piles, each corner arrangement, pile center distance of 3000mm.
2, cap base and cushion design
According to geological conditions, combining with manufacturers to provide the basis for construction requirements, cap use 4820 mm × 4820mm × 1250mm (length × width × height), concrete strength requirements of not less than C30, C30 based on reinforced concrete pile used within the allocated Ф20 @ 183 double two-way, vertical and horizontal direction at intervals of two longitudinal bars located a Ф20 stretching. According to soil conditions, in the basement outside the tower crane foundation platform consists of plain concrete 100 thick C15 and 300 thick stone cushion cushion.
3, pile foundation design
Pile foundation with pile diameter Ø800mm pile, located in the basement outside the 40 m long crane pile, pile top elevation of -2.00 m, bottom elevation of -42.00 m piles, pile caps embedded in the top 100mm, pile reinforced case : longitudinal bars 8Φ20, cage length L = 30.70 m, spiral hoop Ø8 @ 200, pile top 2 meters encryption Ø8 @ 100,